Answer:
D. Rhombus
Step-by-step explanation:
The most specific name for this figure is a rhombus.
Hope this helps!
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Solve for tS=9t^2-vt
Given the equation:
\(undefined\)Melissa was recording the heights of 4 flowers in her garden. The rose bush grew 12 inches in 1 month, the daisies grew 5 inches in 2 weeks, the tulips grew 8 inches in 3 weeks, and the daffodils grew 3 inches in 1 week. Which flower grew at the slowest rate?
Answer:
Daisies flower grows the slowest
Step-by-step explanation:
We are given;
Rate of growth of rose bush; 12 inches in 1 month.
1 month = 4 weeks.
Thus, we have; 12 inches in 4 weeks.
In 1 week, it grows; 12/4 = 3 inches per week
Rate of growth of daisies; 5 inches in 2 weeks. Thus, in 1 week, it grows by; 5/2 = 2.5 inches per week.
Rate of growth of tulips; 8 inches in 3 weeks. In one week, it grows by; 8/3 = 2.67 inches per week
Rate of growth of daffodils; 3 inches in 1 week = 3 inches per week
Looking at all the rates above, the slowest is 2.5 inches per week. This is for daisies.
_________________ is the angle of tilt below the imaginary horizontal plane oriented 90-degrees to the _______________ direction.
The missing terms in the sentence are "Inclination" and "Vertical."
Inclination is the angle of tilt below the imaginary horizontal plane oriented 90-degrees to the vertical direction. It refers to the angle at which an object or surface deviates from being perfectly horizontal or flat. It measures the slope or tilt of the object or surface in relation to the vertical direction.
The vertical direction is the imaginary line or axis that points directly up or down, perpendicular to the horizontal plane. It is oriented at a 90-degree angle to the horizontal direction, which is typically considered the direction parallel to the ground or any other reference plane.
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Solve 11-8p=2p+7
What is p?
The signal x[n] = u[n] - u[n − 3] is applied to an LTI system whose impulse response is: h[n] = = (1/2)^n u[n] - (a) Find the output y[n]. - (b) Show that the system is stable or unstable, as the case may be.
The impulse response is absolutely summable and hence, the system is stable. Therefore, the system is stable.
The given signal x[n] is;
\($$x[n] = u[n] - u[n-3]$$\)
The impulse response of the system is given as:
\($$h[n] = \left(\frac{1}{2}\right)^nu[n]$$\)
Now, the output of a linear time-invariant (LTI) system is given by;
\($$y[n] = x[n] * h[n]$$\)
Where, * represents the convolution operation. Hence, we need to find the convolution of the input signal x[n] with the impulse response of the system h[n].
(a) Convolution of the given input signal x[n] with the given impulse response h[n] is given as:
\($$\begin{aligned} y[n] &= x[n] * h[n] \\ &= \sum_{k=-\infty}^{\infty} x[k]h[n-k] \\ &= \sum_{k=-\infty}^{\infty} (u[k] - u[k-3]) \left(\frac{1}{2}\right)^{n-k} u[n-k] \end{aligned}$$\)
Now, let's break this equation into two parts, one for \($0 \leq n < 3$\) and other for \($n \geq 3$\).
For \($0 \leq n < 3$\), the above equation can be simplified as:
\($$\begin{aligned} y[n] &= \sum_{k=0}^{n} \left(\frac{1}{2}\right)^{n-k} \\ &= \frac{1}{2^n} \sum_{k=0}^{n} \left(\frac{1}{2}\right)^k \\ &= \frac{1}{2^n} \cdot \frac{1 - \left(\frac{1}{2}\right)^{n+1}}{1 - \frac{1}{2}} \\ &= 1 - \frac{1}{2^{n+1}} \end{aligned}$$\)
For\($n \geq 3$\), the above equation can be simplified as:
\($$\begin{aligned} y[n] &= \sum_{k=n-2}^{n} \left(\frac{1}{2}\right)^{n-k} \\ &= \frac{1}{2^3} + \frac{1}{2^2} + \frac{1}{2^1} \\ &= \frac{7}{8} \end{aligned}$$\)
Therefore, the output of the given system is:
\($$y[n] = \begin{cases} 1 - \frac{1}{2^{n+1}} & \text{for } 0 \leq n < 3 \\ \frac{7}{8} & \text{for } n \geq 3 \end{cases}$$\)
(b) The system is said to be stable if the impulse response is absolutely summable, that is,
\($$\sum_{n=-\infty}^{\infty} |h[n]| < \infty$$\)
Now, let's check whether the given system is stable or not:
\($$\sum_{n=-\infty}^{\infty} |h[n]| = \sum_{n=0}^{\infty} \left(\frac{1}{2}\right)^n = \frac{1}{1 - \frac{1}{2}} = 2 < \infty$$\)
Since the above sum is a finite quantity, the impulse response is absolutely summable and hence, the system is stable. Therefore, the system is stable.
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A bank tellers’ hourly wage will change from $24 to $27.60. What % change does this represent?
Answer:
15%Explanation:24.00 increased by 15% is 27.60The increase is $3.60.Step-by-step explanation:
A man walks a certain distance at a certain speed. If he walks 1/2km/hr faster, he takes 1hr less. But if he walks 1km/hr slower, he takes 3more hours. Find the distance covered by the man and his original rate of walking.
The distance covered is 36 km and the original rate is 4 km/hr
Finding the distance covered and the original rate of walkingFrom the question, we have the following parameters that can be used in our computation:
Walking 1/2 km/hr faster, he spends 1 hr lessWalking 1 km/hr slower, he spends 3 hours moreLet speed be y and distance be x
The equation of time is
time = x/y
So, we have the following equations
x/(y + 1/2) = x/y - 1
x/(y - 1) = x/y + 3
So, we have
x/y - x/(y + 1/2) = 1
x/(y - 1) - x/y = 3
When solved graphically, we have
x = 36 and y = 4
This means that
The distance covered is 36 km and the speed is 4 km/hr
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Tyler practiced the clarinet for 64% as much time as Han practiced the piano. How long did he practice?
Answer:
Tyler practiced piano = 48 minutes
Step-by-step explanation:
Missing;
Hen practiced piano = 75 minutes
Given:
Tyler practiced piano = 64 % of Hen
Find:
How long Tyler practiced
Computation:
Tyler practiced piano = 64 % of Hen
Tyler practiced piano = 64 % x 75
Tyler practiced piano = 48 minutes
light bulbs are packed in boxes of 10. inspectors randomly select 3 of the 10 light bulbs. the box contains exactly 4 defective light bulbs. using a hypergeometric probability distribution, find the following to four decimals. a defective bulb is considered a success. what is the probability that exactly four of the selected is defective? enter the answer as a number to one decimal.
The probability that exactly four of the selected bulbs from the pack of 10 bulbs is defective is 1/120.
Define the hypergeometric probability distribution?When sampling from such a low population without replacement, the hypergeometric distribution represents a discrete probability distribution which determines the likelihood that an event occurs k times in n trials. In terms of the aspect of sampling without replacement, this distribution is equal to the binomial distribution.For the given question;
Total bulbs = 10Defective bulbs = 4Selected bulbs = 3Thus, the probability that exactly four of the selected is defective.
P = ⁴C₄ / ¹⁰C₃
P = 1/120
Thus, the probability that exactly four of the selected is defective is 1/120.
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Please explain how to write this in the horizontal model and the 3 other questions. Thank you! Sample Problem (remember the real"problem will be similar but could be presented differently Lau and LauLLC(LLLLC)builds swimming builds custom swimming pools in Boise,Idaho.LL LLC uses material reguisition forms and direct labor time tickets to trace direct materials and direct labor costs to specific jobs. Manufacturing overhead is applied to all jobs based on a percent of direct labor costs At the beginning of the second month of operations, the company had the following balances: oRaw Materials $75,000 Work in ProcessWIP) $140,000 Finished Goods -0- During the second month of operations (June 201XX),the company recorded the following transactions. aPurchased S225.000 in raw materials bssued the S150.000 of raw materials to production.of which S125.000 were direct materials cRecorded the following labor costspaid in cash) S60.000 in direct labor S40,000 in construction supervisorssalaries S26,000 in administrative salaries dRecorded the following actual manufacturing overhead costs oConstruction insurance 10,000 oConstruction equipment depreciation S55,000 Pool permits and inspections 9,000 eRecorded the $18.000 in selling and administrative costs. fApplied manufacturing overhead to jobs using 175%of direct labor costs gCompleted 16 pools at a total cost of S352,000.One1of these pools costingS22,000 is still waiting for final inspection and customer approval so the sale has not been finalized. hRealized sales revenue of S525.000 on the sale of the 15 pools that were sold Closed the Manufacturing Overhead account balance to Cost of Goods Sold. Required Questions: 1Draw the following t-accounts or colurmns and enter their beginning balances:Raw Materials WIP.Finished Goods,MOHCOGS if you find it helpful to draw SG&A Sales Revenue and Cash that is okay but not required). 2Record the transactions listed above and calculate the ending balances for all accounts 3)How much is manufacturing overhead over or underapplied? 4What isthe adiusted ending balance for CostofGoods Sold
(3) Add: Under applied overhead 34,000
(4) Adjusted cost of goods sold 364,000
1 and 2 RAW MATERIAL INVENTORY
Beginning balance 75,000
a 225,000 150,000 b, Ending Balance 150,000
WORK IN PROGRESS INVENTORY
Beginning balance 140,000
b 125,000 352,000 g
c 60,000
f 105,000
j Ending Balance 78,000
FINISHED GOODS INVENTORY
Beginning balance -
g 352,000 330,000 h
Ending Balance 22,000
FACTORY OVERHEAD
b 25,000
c 40,000 105,000 f
d 74,000
Ending Balance 34,000
COST OF GOODS SOLD
h 330,000
Ending Balance 330,000
Factory overhead applied on the basis of direct labor cost .
Hence applied overhead = 60,000 x 175% = $105,000Step: 2
3)
Computation of under /(over) applied OH
Actual OH($) Applied OH ($) Under /(over) applied OH ($)
139,000 105,000 34,000
Actual manufacturing overhead:
$
Indirect material 25,000
Indirect Labour 40,000
Other manufacturing overhead 74,000
139,000
4)
Cost of goods sold (Unadjusted) 330,000
Add: Under applied overhead 34,000
Adjusted cost of goods sold 364,000
Actal manufacturing overhead is more than applied overhead,it means factory overhead under applied and it will be added in unadjusted cost of goods sold to ascertain adjused cost of goods sold.
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If you were to use the substitution method to solve the following system, choose the new equation after the expression equivalent to y from the first equation is substituted into the second equation. 12x − y = −4 4x − 3y = −6 a 4x − 3(−12x − 4) = −6 b 4x − 3(12x + 4) = −6 c 4(12x + 4) − 3y = −6 d 4(−12x − 4) − 3y = −6
Answer:
b
Step-by-step explanation:
From eqn 1
12x - y = - 4
y = 12x + 4
Substituting y into eqn 2
4x - 3y = - 6
4x - 3(12x + 4) = - 6
12.36 divided by six
hiii so my parents just finally agreed to let me get a puppy so could you list some boy and girl name ideas? tyyyy
pls say at least 3
Answer:
abby
frisk
mimi
Step-by-step explanation:
Answer:
Mochi, Athena, and Oreo ^^
Step-by-step explanation:
Congrats! :D
For which intervals is the function increasing? Select each correct answer.
(2, ∞)
(1, 2)
(0, 1)
(-∞, 0)
Answer:
i think the answer may be (2,infinity)
(1, 2) and (-∞, 0)
===========================================================
Explanation:
The function curve is increasing when going uphill as you move to the right. This happens on the interval (-∞, 0) aka -∞ < x < 0 aka x < 0. This is why choice D is one of the answers.
The function is also increasing when 1 < x < 2 which translates to the interval notation (1,2). This is why choice B is the other answer.
Choices A and C are eliminated since they describe decreasing intervals.
study the position-time graph of a hiker
what is the displacement of the hiker after 4 hours?
1. 8 km
2. 9 km
3. 6 km
4. 7 km
Option 2: 9 km seems to be the most likely answer if the hiker's motion is along a straight line.
What is displacement?Displacement refers to the distance between an initial point and a final point of an object's motion, measured in a straight line. In other words, it is the shortest distance between the starting point and ending point of an object's motion, regardless of the path taken.
I would need the position-time graph to accurately determine the displacement of the hiker after 4 hours. However, assuming that the hiker's motion is along a straight line, I can make an educated guess based on the options provided.
Option 1: 8 km - If the hiker's displacement after 4 hours is 8 km, it means that the hiker traveled at a constant speed of 2 km/h (since 2 km/h x 4 hours = 8 km). This would result in a straight line on the position-time graph with a constant slope of 2 km/h.
Option 2: 9 km - If the hiker's displacement after 4 hours is 9 km, it means that the hiker traveled at an average speed of 2.25 km/h (since 2.25 km/h x 4 hours = 9 km). This would result in a straight line on the position-time graph with a constant slope of 2.25 km/h.
Option 3: 6 km - If the hiker's displacement after 4 hours is 6 km, it means that the hiker traveled at an average speed of 1.5 km/h (since 1.5 km/h x 4 hours = 6 km). This would result in a straight line on the position-time graph with a constant slope of 1.5 km/h.
Option 4: 7 km - If the hiker's displacement after 4 hours is 7 km, it means that the hiker traveled at an average speed of 1.75 km/h (since 1.75 km/h x 4 hours = 7 km). This would result in a straight line on the position-time graph with a constant slope of 1.75 km/h.
Without the position-time graph, it is difficult to determine the correct answer. However, based on the options provided.
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3.2(x - 5) has infinitely many solutions is Alex correct
Alex's statement that 3.2(x - 5) has infinitely many solutions is correct
How to determine the true statementFrom the question, we have the following parameters that can be used in our computation:
3.2(x - 5)
The above is an expression
This means that it can take any value depending on the value of x
Taking any value implies that it has infinitely many solutions
Hence, Alex's statement about the solutions is correct
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Ancilla and christabel are two wives of David, Ancilla is older than christabel .Given that Ancilla's age is (5x-4) years and christabel's age is (2x+1)years. write down the expression interns of x for how much older Ancilla is than christabel
Answer:
(5x - 4) = 2(2x + 1)
Step-by-step explanation:
Since Ancilla is twice as old as Christabel
Ancilla's age (5x - 4) is twice Christabel (2x + 1) so,
(5x - 4) = 2(2x + 1)
If you have 675 cm? of material to make a box with a square bottom and an open top, find the largest possible volume of this box_ base edges = W height h
The largest possible volume of this box is 1687.5 cm³ with a base edge of 15 cm and a height of 7.5 cm
Let w = length of the base edge
h = height of the box
A box with a square bottom and an open top is to be made from 675 cm² of material. Hence,
675 cm² = w² + 4wh
4wh = 675 cm² - w²
h = (675 cm² - w²)/4w
The volume of the box is the product of the area of the square base and its height. Hence,
V = w²h
Substitute the expression of h to the equation of volume.
V = w²(675 cm² - w²)/4w
V = (675/4)w - (1/4)w³
To obtain the largest volume possible, the first derivative of the volume should be equal to zero.
V'(w) = 0
V = (675/4)w - (1/4)w³
675/4 - (3/4)w² = 0
Simplify and solve for the value of w.
675/4 - (3/4)w² = 0
(3/4)w² = 675/4
w² = 225
w = 15
length of the base edge = 15 cm
Solve for the value of h.
h = (675 cm² - w²)/4w
h = (675 cm² - (15)²)/4(15)
h = 7.5 cm
height of the box = 7.5 cm
Solve for the volume of the box.
V = w²h
V = (15 cm)²(7.5 cm)
V = 1687.5 cm³
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Prove that the triangle formed by the points A (0,0), B (1, sqrt3), and C (2,0) is equilateral.
I’m taking AP Calc BC.
The Prove that the triangle formed by the points A (0,0), B (1, sqrt3), and C (2,0) is equilateral is given below
What is an equilateral triangle?An equilateral triangle is aid to be a triangle that is known to have all its three sides to be of the same length.
Note that:
AB= \(\sqrt{(0-0)^ 2 +(1.73-1)^ 2}\)
=\(\sqrt{}\)0.5329
= 0.73
BC= \(\sqrt{(1.73-1)^ 2 +(0-2)^ 2}\)
=\(\sqrt{}\)0.5329
= 0.73
CA= \(\sqrt{(0-2)^ 2 +(0-0)^ 2}\)
=\(\sqrt{}\)0.5329
= 0.73
So therefore, AB=BC=CA
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Which system of equations has no solution?
Answer:
4x-5y=3
-3=4x-5y
Step-by-step explanation:
4x-5y = 3
4x-5y = -3
both statements have different answers but has the same problem making the statement x=x and 0=0 making it have no solution
PLEASE HURRY WILL GIVE BRANLIEST TO FIRST ANSWER
A rectangular prism has a length of312
inches, a width of 212
inches, and a height of 3 inches. How many 18
inch cubes can fit inside the rectangular prism?
Responses
210
420
9,344
13,440
227 18-inch cubes can fit inside the rectangular prism.
How is this determined?You may calculate how many 18-inch cubes can fit within a rectangular prism by dividing the rectangular prism's overall volume by the volume of a single 18-inch cube.
A rectangular prism's volume can be calculated using the formula length x width x height. In this instance, the dimensions are 312 inches long, 212 inches wide, and 3 inches high. As a result, the rectangular prism has a volume of 1,326,720 cubic inches (312 x 212 x 3).
A single 18-inch cube has a volume of 18 x 18 x 18 = 5832 cubic inches.
We divide the volume of the rectangular prism by the volume of a single 18-inch cube to get the number of 18-inch cubes that can fit inside: 1,326,720 / 5832 = 227.
Therefore, the rectangular prism can accommodate 227 18-inch cubes.
Please take note that this is an estimate and that there will not be enough room in the prism to fit 227 cubes exactly.
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A person working on the roof of a two-story house drops a paintbrush. It is 35 feet to the
ground. When the brush falls, the worker on the roof shouts "Look Out!". A 6 feet tall
person is standing directly below where the brush falls.
If the reaction time needed for the person on the ground to move away is 1.85 seconds,
will they be hit by the paintbrush before they can move out of the way?
The kinematic equation of the motion of the paintbrush dropped 35 feet height from the ground and the 1.85 seconds reaction time of the 6 feet person standing directly below, indicates that they will be hit by the paintbrush before they can move out of the way.
What is the kinematic equation of motion?The kinematic equation of motion describe the motion of a body that moves under constant acceleration, without consideration of the forces causing the body to move.
The height from which the paintbrush is dropped from the roof to the ground = 35 feet
Height of the person standing directly below where the brush falls = 6 feet
The reaction time of the person = 1.85 seconds
The kinematic equation of motion of free fall of an object is presented as follows;
s = u·t + 0.5·g·t²
Where; s = The height through which the paintbrush falls
u = The initial velocity of the paintbrush = 0
g = The acceleration due to gravity ≈ 32.1741 ft/s²
The height the paintbrush falls before meeting the 6 feet tall person, s = 35 feet - 6 feet = 29 feet
Therefore, we get;
29 = 0 × t + 0.5 × 32.1741 × t²
t² = 29 ÷ (0.5 × 32.1741) ≈ 1.803
The time it takes the paintbrush to fall 29 feet, t, is therefore;
t = √(29 ÷ (0.5 × 32.1741)) ≈ 1.343
It takes the paintbrush to reach the height of the person standing directly below in just about 1.3 seconds after it is dropped, before the person can react to move away in 1.85 seconds, therefore, they will be hit by the paintbrush before they can move out of the way.
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Use the Principle of Mathematical Induction to show that the given statement is true for all natural numbers n.
1.9+2.10+3.11++n(n+8)=n/6(n+1)(2n+25)
According to the Principle of Mathematical Induction, what two conditions must the given statement satisfy to prove that it is true for all natural numbers? Select all that apply.
The statement is true for the natural number 1.
The statement is true for any two natural numbers k and k + 1.
If the statement is true for the natural number 1, it is also true for the next natural number 2.
If the statement is true for some natural number k, it is also true for the next natural number k + 1.
Show that the first of these conditions is satisfied by evaluating the left and right sides of the given statement for the first natural number.
1.9+2-10+3-11++n(n+8)=n/6(n + 1)(2n+25)
The first condition to satisfy the principle of mathematical induction is "the statement is true for the natural number 1".
Use the principle of mathematical induction to show that the given statement is true for all natural numbers n:
1. 9 + 2.10 + 3.11 + … + n(n + 8) = n/6(n + 1)(2n + 25)To prove: 9 + 2.10 + 3.11 + … + n(n + 8) = n/6(n + 1)(2n + 25) is true for all natural numbers.
The first step is to check for the base case.
When n = 1LHS = 9 + 2.10 = 29RHS = 1/6(2 x 1 + 25) = 27/6 = 9/2
The LHS is equal to RHS when n = 1.
Let us assume that the equation is true for n = k.i.e., 9 + 2.10 + 3.11 + … + k(k + 8) = k/6(k + 1)(2k + 25)
If we add (k + 1)(k + 9) to both sides of the equation, then we get,
9 + 2.10 + 3.11 + … + k(k + 8) + (k + 1)(k + 9) = k/6(k + 1)(2k + 25) + (k + 1)(k + 9)
LHS: We can write the above equation as,
9 + 2.10 + 3.11 + … + k(k + 8) + (k + 1)(k + 9)= 1/6[(6k² + 65k + 198) + 6(k + 1)(k + 9)](simplifying the above expression)
RHS: Substituting n = k + 1 in the RHS expression,
we get(k + 1)/6(k + 2)(2k + 27)(simplifying the above expression)
Since the LHS = RHS, the equation is true for n = k + 1.
Therefore, by mathematical induction, 9 + 2.10 + 3.11 + … + n(n + 8) = n/6(n + 1)(2n + 25) is true for all natural numbers n.
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Pls answer and show work
The values of x and y are obtained as 12.99 and 7.5 respectively.
What are trigonometric ratios?The trigonometric ratios are defined for a right angled triangle.
The example of these ratios are sin, cos, tan, cosec, sec and cot.
The trigonometric ratios are useful in determining the heights and distances of the large objects.
For the given triangle, the trigonometric ratios are used as follows,
Cos(30°) = x/15
=> √3/2 = x/15
=> x = 15√3/2
=> x = 15 × 0.866
= 12.99
And,
Sin(30°) = y/15
=> 1/2 = y/15
=> y = 15/2
= 7.5
Hence, for the given triangle the values of x and y are given as 12.99 and 7.5 respectively.
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Given: mZ1= 74
Find the measures of 4, 3, 2, 8, 5, 7, and 6
It would help a lot :D
During this same time, the digital print manager tracked the number of visits to the website’s homepage. he found that before launching the new marketing plan, there were 4,800 visits. over the course of the next 5 weeks, the number of site visits increased by a factor of 1.5 each week. write an equation to model the relationship between the number of weeks, x, and the number of site visits, f(x).
An equation to model the relationship between the number of weeks, x, and the number of site visits, f(x) is 4800 = a(1.5)^x.
He found that before launching the new marketing plan, there were 4,800 visits.
Over the course of the next 5 weeks, the number of site visits increased by a factor of 1.5 each week.
Over the course of the next 5 weeks, initial visitor at x = 0, 4800
Increasing factor = 1.5
Equation of the model is given as:
f(x) = a(b)^x
From the question b = 1.5
Now the equation of model is:
f(x) = a(1.5)^x
At x = 0, f(x) = 4800
Now the equation of the model is:
4800 = a(1.5)^x
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Mrs Mabaspacked , prudence's mom packed a cooler box bag for the day of the painting . Two six pack cans fit exactly on top of each other in the cooler bag. A can has a diameter of 6 cm and a height of 8,84 cm 0:41 EZ07/67/90 dy the information given in the information above and answer the questions that follow. 2.1 2.2 2.3 2.4 Calculate the volume in ml of one can of cold drink, rounded to the nearest whole number. Determine the height of the cooler bag, rounded to the nearest whole number. Determine the volume in ml of the cooler bag if the breadth of the bag is 12 cm and the length 18 cm. Each can have a label on them as shown by the image below Piesse Circumference of the can NEW Diet, Soda 0 Calories! Calculate the length of the lable. CALORIES PER SERVING Nutrition Fac Hight of the can (3) (2) (3) (2) 27 [10]
2.1 The volume in ml of one can of cold drink is 83 ml.
2.2 The height of the cooler bag is 18 cm.
2.3 The volume in ml of the cooler bag if the breadth of the bag is 12 cm and the length 18 cm is 3,888 ml.
2.4 The circumference of the can is 18.84 cm.
How to calculate the volume of a cylindrical can?In Mathematics and Geometry, the volume of a cylinder can be calculated by using this formula:
Volume of a cylinder, V = πr²h
Where:
V represents the volume of a cylinder.h represents the height or length of a cylinder.r represents the radius of a cylinder.By substituting the given side lengths into the volume of a cylinder formula, we have the following;
Volume of can = 3.14 × (6/2)² × 8.84
Volume of can = 83.27 cm³.
Note: 1 cm³ = 1 ml
Volume of can in ml = 83.27 ≈ 83 ml.
Part 2.2.
For the height of the cooler bag, we have:
Height of cooler bag = 2 × height of can
Height of cooler bag = 2 × 8.84
Height of cooler bag = 17.68 ≈ 18 cm.
Part 2.3
Volume of cooler bag = length × breadth × height
Volume of cooler bag = 18 × 12 × 18
Volume of cooler bag = 3,888 ml.
Part 2.4
The circumference of the can is given by:
Circumference of circle = 2πr
Circumference of can = 2 × 3.14 × 3
Circumference of can = 18.84 cm.
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Missing information:
The question is incomplete and the complete question is shown in the attached picture.
find the value of unknown angle x,y,z,a,b,c with reasons and full process
Answer:
Step-by-step explanation:
x = 70 degree (being vertically opposite angles)
y + 70 degree =180 degree (being linear pair)
y = 180 - 70
y = 110 degree
In triangle,
x + 60 + misssing angle = 180 degree (sum of interior angles of a triangle)
70 + 60 + missing angle =180
130 + missing angle = 180
missing angle = 180 - 130
missing angle = 50 degree
c = missing angle (being vertically opposite angles )
c = 50 degree
x + missing angle = a (sum of two interior opposite angles is equal to the exterior angle formed)
70 + 50 = a
120 degree = a
a = b (being vertically opposite angle
120 =b
therefore b is 120 degree
Hence , a = 120 degree , b = 120 degree , c = 50 degree , x = 70 degree , y = 110 degree
A random sample of 40 adults with no children under the age of 18 years results in a mean daily leisure time of 5.65 hours, with a standard deviation of 2.43 hours. A random sample of 40 adults with children under the age of 18 results in a mean daily leisure time of 4.37 hours, with a standard deviation of 1.73 hours. Construct and interpret a 90% confidence interval for the mean difference in leisure time between adults with no children and adults with children. (u1 - u2)
The interpretation is that we are 90% confident that the true difference in the mean daily leisure time between adults with no children and adults with children lies between 0.451 and 2.109 hours.
The given data are: For adults with no children under the age of 18 years, Mean = 5.65 hours Standard deviation = 2.43 hours Sample size, n1 = 40 For adults with children under the age of 18, Mean = 4.37 hours Standard deviation = 1.73 hours Sample size, n2 = 40 The formula to calculate the 90% confidence interval for the difference between two means can be given as:\[\left( {{\bar x}_1} - {{\bar x}_2} \right) \pm {t_{\frac{\alpha }{2},n_1 + {n_2} - 2}}\sqrt {\frac{{s_1^2}}{n_1} + \frac{{s_2^2}}{n_2}}\]where,${{\bar x}_1}$ is the sample mean for group 1,${{\bar x}_2}$ is the sample mean for group 2,${{s_1}}$ is the sample standard deviation for group 1,${{s_2}}$ is the sample standard deviation for group 2,$\alpha$ is the level of significance,$n_1$ is the sample size for group 1,$n_2$ is the sample size for group 2,and $t_{\frac{\alpha }{2},n_1 + {n_2} - 2}$ is the t-value from the t-distribution with (n1 + n2 – 2) degrees of freedom.
Let's calculate the confidence interval as follows: Mean difference, $\left( {{\bar x}_1} - {{\bar x}_2} \right)$= 5.65 − 4.37= 1.28 hours Sample standard deviation for group 1, ${s_1}$ = 2.43 hours Sample standard deviation for group 2, ${s_2}$ = 1.73 hours Sample size for group 1, ${n_1}$ = 40Sample size for group 2, ${n_2}$ = 40 Degree of freedom = $n_1 + n_2 - 2$= 40 + 40 – 2= 78$\alpha$ = 0.1 (90% confidence interval, $\alpha$ = 1 – 0.9 = 0.1)Using the t-table or calculator with the given values, we get:$t_{\frac{\alpha }{2},n_1 + {n_2} - 2}$ = t0.05, 78 = 1.665 (approximately)Substituting the given values in the formula, we get:\[\left( {{\bar x}_1} - {{\bar x}_2} \right) \pm {t_{\frac{\alpha }{2},n_1 + {n_2} - 2}}\sqrt {\frac{{s_1^2}}{n_1} + \frac{{s_2^2}}{n_2}}\] = $1.28 \pm 1.665\sqrt {\frac{{2.43^2}}{40} + \frac{{1.73^2}}{40}}$= $1.28 \pm 0.829$= (0.451, 2.109)
Therefore, the 90% confidence interval for the mean difference in leisure time between adults with no children and adults with children is (0.451, 2.109) hours.
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We can also say that adults with no children have, on average, between 0.50 hours and 2.06 hours more leisure time per day than adults with children under the age of 18.
The 90% confidence interval for the mean difference in leisure time between adults with no children and adults with children is (-1.23, -0.04).
We are to construct a 90% confidence interval for the mean difference in leisure time between adults with no children and adults with children.
We are given the following information:
u1 = mean daily leisure time of adults with no children
= 5.65 hours
σ1 = standard deviation of daily leisure time of adults with no children
= 2.43 hours
n1 = sample size of adults with no children
= 40
u2 = mean daily leisure time of adults with children
= 4.37 hours
σ2 = standard deviation of daily leisure time of adults with children
= 1.73 hours
n2 = sample size of adults with children
= 40
We can find the standard error (SE) of the difference in means as follows:
SE = sqrt [ (σ1^2 / n1) + (σ2^2 / n2) ]
SE = sqrt [ (2.43^2 / 40) + (1.73^2 / 40) ]
SE = sqrt (0.1482 + 0.0752)
SE = sqrt (0.2234)
SE = 0.4726
We can now use the formula for a confidence interval of the difference in means as follows:
CI = ( (u1 - u2) - E , (u1 - u2) + E )
where
E = z*SE and z* is the z-score for the level of confidence.
Since we want a 90% confidence interval, we look for the z-score that corresponds to the middle 90% of the normal distribution, which is found using a z-table or calculator.
For a 90% confidence level, the z* value is 1.645,
so:E = 1.645 * 0.4726E = 0.7779
Plugging in the values, we have:CI = ( (5.65 - 4.37) - 0.7779 , (5.65 - 4.37) + 0.7779 )CI = ( 1.28 - 0.78, 1.28 + 0.78 )CI = ( 0.50, 2.06 )
The 90% confidence interval for the mean difference in leisure time between adults with no children and adults with children is (0.50, 2.06).
This means that we are 90% confident that the true mean difference in leisure time between the two groups of adults falls between 0.50 hours and 2.06 hours.
Since the interval does not include zero, we can conclude that the difference in means is statistically significant at the 0.10 level. We can also say that adults with no children have, on average, between 0.50 hours and 2.06 hours more leisure time per day than adults with children under the age of 18.
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Im stuck help me pls thank you
Answer:
The answer is "Option A".
Step-by-step explanation:
In this, the question is missing so, we assuming the missing question is this question, which is add in attach file. please find it.
Formula for line:
\(\to \bold{y= mx+ c}\)
\(\to m= slope \\\\\to c= y-intercept\)
In the question the slope "m= 3 and y= -2" so, the line is \(y= 3x+ (-2)\).
\(\to y= 3x-2\)