Answer:
Each day, you record the high temperature* (you don't necessarily need to say that it is for a science project). On Day 1, it was 4* less than Day 10**. It hit 62* F on Day 10. What was the high temperature on Day 1?
Because we know that on Day 1, the temperature was 4* less than on Day 10, and the high temperature on Day 10 was 62*, the high temperature on Day 1 was therefore 58*. Because 62 - 4 = 58.
Step-by-step explanation:
*You don't necessarily need to say that it was for a science project.
**The information for Day 4 is irrelevant too because we are not given the temperature for Day 4, therefore it does not help us find the answer.
A certain type of lily is growing in a pond in such a way that the number of plants is growing exponentially. The number of plants, N, in the bond at time t is modeled by the function N(t)=ab^t, where a and b are constants and is measured in months. The table shows two values of the function.t N(t)0 1501 450What is the equation that can be used to find the number of plants in the pond at time t?
to find the number of plants in the pond at the time t we can use the equation N(t) = 150(3)^t.
The equation that can be used to find the number of plants in the pond at time t, given that the number of plants is growing exponentially, is:
N(t)=ab^t.
The given values in the table for the function N(t) are:
t N(t)0 1501 450
We can use these values to determine the values of constants a and b in the equation
N(t)=ab^t:
Substitute t = 0 and N(t) = 150 in the equation
N(t)=ab^t.
Then, 150 = a × b^0 → 150
= a × 1 → a
= 150
Substitute t = 1 and N(t) = 450 in the equation N(t)=ab^t.
Then, 450 = 150 × b^1 → b = 3.
Now that we have found the values of a and b, we can write the equation that can be used to find the number of plants in the pond at time t as: N(t) = ab^t = 150(3)^t.
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You are going to bake an oversized sheet cake. The recipe calls for 2 cups of sugar for every 3 cups of flour. How many cups of flour are needed if you use 18 cups of sugar? Which answer is correct?
(1): 27 cups
(2): 18 cups
(3): 9 cups
(4): 6 cups
Q). Express each of the following recurring decimal as a rational numbers . 1) 0.5 2) 0.13 3) 0.341
The following recurring decimal as a rational number are 1/2, 13/100 and 341 / 1000
What is rational number?A rational number is a number that is expressed as the quotient or fraction of two integers, a numerator and a non-zero denominator such as;
3/4. where,
Numerator = 3Denominator = 4Therefore,
0.5
= 5/10
= 1/2
0.13
= 13/100
0.341
= 341 / 1000
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Which shows how to determine the volume of the pyramid?
Answer:
d would be correct
Step-by-step explanation:
A pyramid is a polyhedron formed by connecting a polygonal base and an a a p e x. The basic formula for pyramid volume is the same as for a cone: volume = (1/3) times base area times height, where height is the height from the base to the a p e x. That formula is working for any type of base polygon and oblique and right pyramids.
The price of a colour TV is $ 13440, inclusive of sales tax. If the printed price of the colour TV be $ 12000 then find the rate of sales tax.
Answer:
12%
Step-by-step explanation:
first subtract 12000 from 13440 which is 1440 which is the amount of sales tax. to find the rate you need to find at what percentage was multiplied by. I got 0.12 which means 12 percent sales tax.
The area of the square base is S(x), where x is the length of the concrete foundation, and the area of the base of the cylindrical tank is C ( r ), r is the radius of the cylindrical tank. What does the expression S ( C ( r ) ) represent?
Answer:
C(r) is the area of the base of a cylindrical tank with radius r.
We know that this area is:
C(r) = pi*r^2
S(x) is the area of the square base where x is the side length of the base.
S(x) = x*x
Now, we have the expression:
S( C(r)) wich means that we are evaluating the function S(x) in the point x = C(r)
Now, we have a problem here.
In S(x), S(x) is in units of area, and x is in units of length.
And the same for C(r), C(r) is in units of area, and r in units of length.
then we can not have x = C(r)
Then this expression does not represent anything, because the units do not match, so it has no physical sense.
Place the correct numbers to form a fraction to answer the question. Donna rides her bike at a rate of 192 miles per hour. How many miles can Donna travel in 13 hour?
The number of miles Donna can travel (in fraction) is 19/6 miles in 1/3 hours.
What is fraction?
In mathematics, a fraction is used to denote a portion or component of the whole. It stands for the proportionate pieces of the whole. Numerator and denominator are the two components that make up a fraction. The numerator is the number at the top, and the denominator is the number at the bottom.
The distance and time values are given in fractional form.
The speed at which Donna rides a bike is = 19/2 miles per hour
The time value is = 1/3 hours
The formula for speed is -
Speed = Distance / Time
Distance = Speed × Time
Substitute the values in the above equation -
Distance = 19/2 × 1/3
Distance = 19/6
Therefore, Donna can travel 19/6 miles.
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Place the correct numbers to form a fraction to answer the question. Donna rides her bike at a rate of 19/2 miles per hour. How many miles can Donna travel in 1/3 hour?
WILL GET BRAINLEIST!!! I NEED IT BY TODAY!!!!
Answer:
ok i know this is correct %100 it is D
Step-by-step explanation:
this is because if u have 8/20 and reduce by four do divide 8 by four and 20 by four that would be 2/5!!
IF THIS HELPED PLZ GIVE ME BRAINIEST!!
Answer:
2 / 5
Step-by-step explanation:
8/20 simplifies to 2/5. Simply divide 8 and 20 by 4 and you get your simplified fraction.
Sketch the region enclosed by the given curves. Decide whether to integrate with respect to x or y. Draw a typical approximating rectangle. y = x3 − 4x, y = 12x Find the area of the region
To sketch the region enclosed by the curves y = x^3 - 4x and y = 12x and determine the appropriate method of integration. By evaluating the definite integral ∫[-4 to 4] (12x - (x^3 - 4x)) dx, we can calculate the area of the region enclosed by the given curves.
The curves intersect when x^3 - 4x = 12x. Simplifying this equation, we get x^3 - 16x = 0. Factoring out x, we have x(x^2 - 16) = 0, which gives us x = 0 and x = ±4 as the intersection points.
To determine whether to integrate with respect to x or y, we can observe that the region is vertically bounded by the curves. Therefore, we'll integrate with respect to x.
To find the area of the region, we'll integrate the difference of the upper and lower curves within the given bounds, from x = -4 to x = 4.
Now, for a more detailed explanation:
First, let's analyze the curves individually. The curve y = x^3 - 4x represents a cubic function, and y = 12x represents a linear function. By plotting these curves on a graph, we can observe that they intersect at three points: (0, 0), (-4, -48), and (4, 48).
To determine the enclosed region, we need to find the x-values at which the curves intersect. Setting the two equations equal to each other, we have x^3 - 4x = 12x. Rearranging this equation, we get x^3 - 16x = 0. Factoring out x, we have x(x^2 - 16) = 0, giving us x = 0 and x = ±4 as the x-values of intersection.
Since the region is vertically bounded by the curves, we'll integrate with respect to x. To find the area, we'll integrate the difference between the upper curve (y = 12x) and the lower curve (y = x^3 - 4x) within the bounds from x = -4 to x = 4.
By evaluating the definite integral ∫[-4 to 4] (12x - (x^3 - 4x)) dx, we can calculate the area of the region enclosed by the given curves.
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HW7.4. Find the frequency with the largest amplitude Find the frequency w for which the particular solution to the differential equation dạy dy 2- + dt2 + 2y = eiwt dt has the largest amplitude. You can assume a positive frequency w > 0. Probably the easiest way to do this is to find the particular solution in the form Aeiwt and then minimize the modulus of the denominator of A over all frequencies w. W= number (rtol=0.01, atol=1e-08) ?
Answer:
the frequency with the largest amplitude Find the frequency w for which the particular solution to the differential equation dạy dy 2- + dt2 + 2y = eiwt dt ...
Step-by-step explanation: basically bigger is better
PQR ~MNO. What is the length of side QR?
The length of the QR is 16 cm when PQR ~MNO
In the given question, it is given that two similar triangles as PQR ~MNO
Then, the corresponding sides will be in equal proportion to each other as follows
PQ / MN = PR / MO = QR / NO
We need to find the length of the side QR
As above relations are given,
\(\frac{PQ}{MN}\) = \(\frac{PR}{MO}\) = \(\frac{QR}{NO}\)
\(\frac{30}{10}\) = \(\frac{5x + 7}{x+5}\) = \(\frac{4x}{\frac{16}{3} }\)
Equating all the fractions, equal to each we'll find
\(\frac{5x + 7}{x+5}\) = \(\frac{30}{10}\)
5x + 7 = 3(x +5)
5x + 7 = 3x + 15
2x = 8
x = 4
We know that, the length of the QR = 4x cm = 4 x 4 cm = 16 cm
Therefore, the length of the QR is 16 cm when PQR ~MNO
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help!!!!
the possible answers are below:
a: x=-1/4, y=-1/2
b: x=-1/2, y= -1/4
c: x=1/2, y=1/4
d: x= 1/4, y= 1/2
Answer: Based on the graph, I believe that the answer is a. x = -1/4, y = -1/2
Step-by-step explanation:
I don’t understand this and needs to be done by tonight. What is a?
Answer:
lol
Step-by-step explanation:
I set z=t=0(x,y,z,t)
and I got a partial solution (0,1,0,0).
I solved two homogeneous matrices once for z=1
and t=0
, then for z=0
and t=1
and I got two solutions (1,1,1,0)
and (1,1,0,1).
Then, I got (0,1,0,0)+a∗(1,1,1,0)+b∗(1,1,0,1
)
Therefore, all possible results are (0,1,0,0),(1,0,1,0),(1,0,0,1),(0,1,1,1)
Would this be correct?
The correct set of possible results would be (0, 1, 0, 0), (1, 2, 1, 0) and (1, 2, 0, 1).
Your approach seems to be correct, but there seems to be a minor mistake in your final list of possible solutions. Let's go through the steps to clarify.
Given the initial conditions z=t=0, you obtained a partial solution (0,1,0,0).
Next, you solved the homogeneous equations for z=1 and t=0, which resulted in a solution (1,1,1,0).
Similarly, solving the homogeneous equations for z=0 and t=1 gives another solution (1,1,0,1).
To find the general solution, you combine the partial solution with the solutions obtained in the previous step, using parameters a and b.
(0,1,0,0) + a(1,1,1,0) + b(1,1,0,1)
Expanding this expression, you get:
(0+a+b, 1+a+b, 0+a, 0+b)
Simplifying, you obtain the following set of solutions:
(0, 1, 0, 0)
(1, 2, 1, 0)
(1, 2, 0, 1)
Therefore, the correct set of possible results would be:
(0, 1, 0, 0)
(1, 2, 1, 0)
(1, 2, 0, 1)
Note that (0, 1, 1, 1) is not a valid solution in this case, as it does not satisfy the initial condition z = 0.
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What fractional part of the battery is still operating after 50 hours of use?
Fractional part of battery: B
t: hours
\(B=5^{-0.02t}\)After 50 hours of use:
Substitute the t in the equation by 50 and evaluate:
\(\begin{gathered} B=5^{-0.02(50)} \\ \\ B=5^{-1} \\ \\ B=\frac{1}{5^1} \\ \\ B=\frac{1}{5} \end{gathered}\)Then, 1/5 of the battery is still operating after 50 hours of useConduct a test at the α=0.01 level of significance by determining (a) the null and alternative hypotheses, (b) the test statistic, and (c) the P-value. Assume the samples were obtained independently from a large population using simple random sampling. Test whether p1>p2. The sample data are x1=116, n1=248, x2=144, and n2=307.
Conduct the following test at the α=0.05 level of significance by determining (a) the null and alternative hypotheses, (b) the test statistic, and (c) the critical value. Assume that the samples were obtained independently using simple random sampling. Test whether p1≠p2. Sample data are x1=30, n1=254, x2=36 and n2=301.
Conduct the following test at the α=0.01 level of significance by determining (a) the null and alternative hypotheses, (b) the test statistic, and (c) the P-value. Assume that the samples were obtained independently using simple random sampling. Test whether p1≠p2. Sample data are x1=28, n1=255, x2=36, and n2=302.
a. The alternative hypothesis is that mean number of pieces of candy in a bag is less than 20. b. The test statistic is -1.47. c. Since the P-value (0.078) is greater than level of significance (α = 0.01), we fail to reject the null hypothesis.
(a) The alternative hypothesis is that mean number of pieces of candy in bag is less than 20.
\(H0: \mu = 20\\Ha: \mu < 20\)
(b) The test statistic is calculated as:
\(t = (x - \mu) / (s / \sqrt n)\)
\(t = (19.2 - 20) / (3.4 / \sqrt 25) = -1.47\)
(c) Assuming the null hypothesis is true. Since this is a left-tailed testwe need to find probability of obtaining a t-value less than or equal to -1.47 .
Using a t-distribution table or calculator, we find that the P-value is approximately 0.078.
we fail to reject the null hypothesis.
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--The complete Question is, Suppose a candy company claims that their bags of candy contain on average at least 20 pieces of candy. A sample of 25 bags of candy was taken, and the number of pieces of candy in each bag was recorded. The sample mean was 19.2 pieces of candy with a standard deviation of 3.4 pieces of candy.
Conduct a test at the α=0.01 level of significance by determining (a) the null and alternative hypotheses, (b) the test statistic, and (c) the P-value. --
explain the ideas (natrual rights,role of the government) and the complaints set forth in the declaration of independence
Answer:
1. Fact that all individuals are created equal and are endowed by their creator with certain unalienable rights is a clear statement in the Declaration of Independence.
2. Aim of having a government is to safeguard these rights, the people have the right and the duty to alter, abolish, or over through that government.
3. The Decoration of Independence lists the grievances that the government has failed to resolve and reconcile with the colonies.
4. The decree was made to become an autonomous nation and the motives for asserting independence are listed in the grievances.
th
A sum of Rs. 700 grows by 1/20 of itself every year. At what time would it amout to Rs.1050?
a) 8 years
b) 10 years
c) 12 years d) 15 years
Answer:
b) 10 yearsStep-by-step explanation:
1/20 of 700: 1/20•700 = 35
700 + n•35 = 1050
n•35 = 350
n = 10
Which is greater, 9 meters or 900 centimeters? Explainyour answer.
A meter is equal to 100 centimeters; therefore, 9 meters are equal to 9*100=900cm.
9 meters is the same length as 900 centimeters.
Given: x³ - 6x² + 11x -6 = 0,what is the product of the roots. help:)
general equation of cubic polynomial is :
\(a {x}^{3} + b {x}^{2} + cx + d = 0\)And we know the product of its roots is equal to
\( \dfrac{ - d}{a} \)by equating the given equation with general equation,
we get :
a = 1d = -6therfore, the product of their roots :
\( \dfrac{ - d}{a} \)\( \dfrac {- ( - 6)}{1}\)\(6\)Answer = 6
i hope it helped.....
show algebraically that the sum of two consecutive numbers is always odd
Answer:
→ Let 2 consecutive numbers be
k and k + 1
→ Find the sum of these 'numbers'
2k + 1
→ Conclude statement
2 ( k ) + 1, as there is a remainder of 1, 2 consecutive numbers are always odd
Complete the recursive formula of the geometric sequence
− 0.1 , − 0.5 , − 2.5 , − 12.5 ,
C (1)=
C (n) = C (n-1) *
Answer: To find the recursive formula of the geometric sequence -0.1, -0.5, -2.5, -12.5, we need to find the common ratio first.
The common ratio is found by dividing any term in the sequence by the previous term. Let's use the second and first terms:
Common ratio = -0.5 / (-0.1) = 5
So the recursive formula for this geometric sequence is:
C(1) = -0.1 (this is the first term)
C(n) = C(n-1) * 5
Therefore, the recursive formula is:
C(1) = -0.1
C(n) = 5C(n-1)
Step-by-step explanation:
What is the distance between point A and point B? A number line ranging from negative 8 to 8 with point A at coordinate negative 6 and point B at coordinate 7 Enter your answer in the box. The distance between points A and B on the number line is units. help please unit # 1 question 10
PLZZZZZ !!!!
Answer: 13.
Simply Count between Coordinates
Which Adds To 13.
Brainly Please.
The distance between point A and B is 13 units
what is number line?A number line can be defined as a straight line with numbers placed at equal intervals or segments along its length.
As, per the number line given we have A at (-6) and B at (+7).
So, not considering the negative sign we have 6 at left of 0 and 7 at right side of zero in a number line.
So, the distance will be
= 6 +7
=13 units
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Wallace bought an indoor putting green for $90. When he went to the cash register, the total including the sales tax was $94.95. What was the sales tax rate?
The sales tax rate for the item purchased was 5.5%
Using the parameters given for our calculation:
Item cost = 90Total amount paid= 94.95Tax amount = 94.95 - 90 = 4.95
Tax rate = tax amount / item cost * 100%
Tax rate = (4.95/90) * 100%
Tax rate = 5.5%
Therefore , the tax rate is 5.5%
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I need help with my math
Answer:
A=28
B=18
C=18
D=28
E=28
F=18
G=10
H=5
Step-by-step explanation:
Find a formula for the exponential function passing through thepoints (-1, 2/5 ) and (3,250)
The exponential function between (-1, 2/5) and (3, 250) is as follows:
\(f(x) = 2 * 5^x\)
By combining the fourth roots from both sides, we arrive at:
b = 5
When we use the expression we discovered for a and this value of b, we get:
a = (2/5) * 5 = 2
As a result, the exponential function between (-1, 2/5) and (3, 250) is as follows:
\(f(x) = 2 * 5^x\)
what are functions?A relation between a collection of inputs and outputs is known as a function. A function is, to put it simply, a relationship between inputs in which each input is connected to precisely one output. Each function has a range, codomain, and domain. The usual way to refer to a function is as f(x), where x is the input. A function is typically represented as y = f. (x).
In mathematics, a function is a unique arrangement of the inputs (also referred to as the domain) and their outputs (sometimes referred to as the codomain), where each input has exactly one output and the output can be linked to its input.
from the question:
This is the shape of the exponential function:
f(x) = a *\(b^x\)
where a represents the starting point and b represents the exponential function's base.
We must solve the system of equations to determine the values of a and b that meet the requirements:
a * \(b^(-1)\) = 2/5 (equation 1)
a *\(b^3\)= 250 (equation 2)
We can solve for an in equation 1 by multiplying both sides by b:
a = (2/5) * b
Substituting this expression into equation 2, we get:
(2/5) * b *\(b^3\) = 250
Simplifying, we get:
\(b^4 = 3125\)
By combining the fourth roots from both sides, we arrive at:
b = 5
When we use the expression we discovered for a and this value of b, we get:
a = (2/5) * 5 = 2
As a result, the exponential function between (-1, 2/5) and (3, 250) is as follows:
\(f(x) = 2 * 5^x\)
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Grace solved the equation 122=x−58. Her work is shown.
What error did Grace make?
Answer:
x=180
Step-by-step explanation:
122 + 58 = x - 58 + 58 = 180 ㅤ ㅤ ㅤ ㅤ ㅤ ㅤ ㅤ ㅤ ㅤ ㅤ ㅤ ㅤ ㅤ ㅤ ㅤ ㅤ ㅤ ㅤ ㅤ ㅤ ㅤ ㅤ ㅤ ㅤ ㅤ ㅤ ㅤ ㅤ ㅤ ㅤ ㅤ ㅤ ㅤ ㅤ ㅤ ㅤ ㅤ ㅤ ㅤ ㅤ ㅤ ㅤ ㅤ ㅤ ㅤ ㅤ ㅤ ㅤ ㅤ ㅤ ㅤ ㅤ ㅤ ㅤ ㅤ ㅤx=180
Which describe all decimal that te rational number
Solve for x in a right triangle (show work)
Answer:
x = 89. 98⁰
Step-by-step explanation:
tan(x) = 29/ 14
x = tan-¹ (29/14)
x = 89. 98⁰
is 100% considered a rational or whole number?
Ight Imma head out because I have no idea what you're saying