Answer:
P(X>26)=0.4721
Step-by-step explanation:
\(Mean = \mu = 25\)
Standard deviation = \(\sigma = 14\)
No. of observations = n = 49
We are supposed to find\(P(\bar{X} > 26)\)
\(Z = \frac{x-\mu}{\sigma}\\Z=\frac{26-25}{14}\\Z=0.0714\)
Refer the Z table for p value
P(X<26)=0.5279
P(X>26)=1-P(X<26)=1-0.5279=0.4721
Hence P(X>26)=0.4721
A book is bought for 350 and sold for R490. Calculate the percentage profit.
well, the profit is clearly just 490 - 350 = 140.
Now, if we take 350(origin amount) to be the 100%, what is 140 off of it in percentage?
\(\begin{array}{ccll} Amount&\%\\ \cline{1-2} 350 & 100\\ 140& x \end{array} \implies \cfrac{350}{140}~~=~~\cfrac{100}{x} \\\\\\ \cfrac{5}{2} ~~=~~ \cfrac{100}{x}\implies 5x=200\implies x=\cfrac{200}{5}\implies x=40\)
A game requires you to toss a 10-sided numbered solid
and a 6-sided numbered solid to determine how to move
on a game board. Find the following probabilities.
a. P(same number on both)
b. P(odd, even) or P(even, odd)
P(same number on both) = 10/60 = 1/6 and P(odd, even) or P(even, odd) = 1/4
How to find the probabilitiesThere are 10 possible outcomes on the 10-sided die and 6 possible outcomes on the 6-sided die
The total number of possible outcomes is 10 x 6 = 60.
To get the same number on both, we need to get one of the 10 numbers on the first toss and then get the same number on the second toss. There are 10 ways to do this. Therefore, the probability of getting the same number on both is:
P(same number on both) = 10/60 = 1/6
b. To get an odd and an even number, we need to get an odd number on the first toss and an even number on the second toss, or vice versa.
There are 5 odd numbers and 5 even numbers on the 10-sided solid, and 3 even numbers and 3 odd numbers on the 6-sided solid.
Therefore, the probability of getting an odd and an even number, or an even and an odd number, is:
P(odd, even) or P(even, odd) = (5/10) x (3/6) + (5/10) x (3/6) = 1/4
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A candy bar that originally sold for $.60 undergoes a 3% price increase each year.
Both calculations from part (1) and part (2) yield the same result of $0.86 for the new cost of the candy bar after 11 years.
Part 1 of 2:
The new cost of the candy bar after 11 years can be calculated by applying a 3% price increase each year to the original cost of $0.60.
To calculate the new cost after 11 years, we can use the formula:
New Cost = Original Cost * (1 + Percentage Increase)^Number of Years
Plugging in the values:
New Cost = $0.60 * (1 + 3%)^11
≈ $0.60 * (1 + 0.03)^11
≈ $0.60 * (1.03)^11
≈ $0.60 * 1.432364654
Rounding to the nearest cent, the new cost of the candy bar after 11 years is $0.86.
Part 2 of 2:
If the cost of the candy bar increased by 3% of the original cost each year for 11 years, we can calculate the final cost by multiplying the original cost by (1 + 3%) for each year.
Using the formula:
Final Cost = Original Cost * (1 + Percentage Increase)^Number of Years
Plugging in the values:
Final Cost = $0.60 * (1 + 3%)^11
≈ $0.60 * (1 + 0.03)^11
≈ $0.60 * (1.03)^11
≈ $0.60 * 1.432364654
Rounding to the nearest cent, the final cost would also be $0.86.
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Note: The complete question is - What will be the cost of the candy bar after a specific number of years if it originally sold for $.60 and undergoes a 3% price increase each year?
Clayton Burrington purchased the following school supplies on s
$2.79 notebook for $1.99, a $1.49 ballpoint pen for $0.99, a $1.99 p
notebook paper for $0.99, and a $3.49 automatic pencil for $2.79.
Clayton estimated the total savings to be $7.00. (a) Is the answer
reasonable? (b) If not, what error was made?
Answer:
The answer is not reasonable.
The error that Clayton made was that he accidentally added all of the products that had a saved price tag on it, he did not find the difference between the old price and the new, sales price.
Step-by-step explanation:
Hope this helps :) Mark me brainliest if anyone else answers this question.
Find the volume: 3 12" X 6' x 9' =
Answer:
31104
Step-by-step explanation:
First, we turn all of the units into inches, so we multiply the feet by 12:
3 · 12; 6 · 12; 9 · 12
Calculate: 36; 72; 108
Add each measurement to its respective side:
36 + 12 · 72 · 108
Compute:
48 · 72 · 108 =
373,248
However, this is in inches. Divide by 12 to get feet:
373,248 ÷ 12 =
31104 cubic feet.
On a number line, point C is at 8, and the midpoint E of CD is at -3.
Point D is at
on the number line.
Answer: C
Step-by-step explanation:
Point D is at -14 on the number line.
How to determine the midpoint of a line segment?In Mathematics, the midpoint of a line segment with two end points can be calculated by adding each end point on a line segment together and then divide by two (2).
Since E is the midpoint of line segment CD, we can logically deduce the following relationship:
Line segment CD = Line segment C + Line segment D
Midpoint E = (point C + point D)/2
By substituting the given points into the equation above, we have the following:
-3 = (8 + D)/2
-6 = 8 + D
D = -6 - 8
D = -14
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What is angle
Enter your answer in the box
Answer:
CAB is 37 degrees
Step-by-step explanation:
90 + 53 = 143
180 - 143 = 37
Please give explanation too, not just answers <3
As x gets larger and larger, the value of y approaches zero.
The graph of \(y = (1/2)^x\) does not have an x‑intercept.
The graph of \(y = (1/2)^x\) does not have a vertical asymptote because there isn't a vertical line that the graph above approaches.
What is an exponential function?In Mathematics, an exponential function can be represented by using the following mathematical equation:
\(f(x) = a(b)^x\)
Where:
a represents the initial value or y-intercept.x represents time.b represents the rate of change.Based on the information provided about this graph, an exponential function which it models is given by;
\(y = (1/2)^x\)
When x = 100, the value of y is given by;
\(y = (1/2)^{100}\)
For the x-intercept when y = 0, we have:
\(0 = (1/2)^x\)
By taking the ln of both sides, we have:
0 = 1 (false).
In conclusion, this exponential function \(y = (1/2)^x\) does not have a vertical asymptote because its denominator can never be equal to zero.
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Question Which is closest to the surface area of the figure below? 1463.8 m squared 578.1 m squared 923.2 m squared 3692.6 m2
The closest option to the cone area is 923.2 m².
What is a cone?A cone is a shape formed from a series of line segments or lines that connect a common point, called a vertex or vertex, to all points on the base of a circle that do not contain vertices. The distance from the apex of the cone to the base is called the height of the cone.
To solve this problem, we need to find the surface of the cone. Formula for the surface area of cone:
A = \(\pi\)r² + \(\pi\)rℓ
where r is the radius of the base, ℓ is the height of the depression, and π is a constant of approximately 3.14159.
First, we find the radius of the base. Since the bottom line of the cone is listed as 18 feet and we know the radius is 14 feet, we can use the Pythagorean theorem to find the height of the cone.
h² = ℓ² - r²
h² = 19.3² - 14²
h ≈ 11.48 feet
Now we can compute the surface.
A = \(\pi\)(14)² + \(\pi\)(14)(19.3)
A ≈ 923.2 square feet
So the closest option to the cone area is 923.2 m².
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Help fast Fast Fast Fast
Answer:
0,5
Step-by-step explanation:
Missing number 5 or it can be a 0
This is beacause a number that ends with 0 or 5 is divisible by 5. Divisibilitiy rules state that!
Ex: 5 x 5 = 25
5 x 4 = 20
Find value of x in trapezoid
Answer:
x = 1
Step-by-step explanation:
You want to know the value of x in the trapezoid with adjacent angles (43x+2)° and 135°.
Supplementary anglesThe two marked angles can be considered "consecutive interior angles" where a transversal crosses parallel lines. As such, they are supplementary.
(43x +2)° +135° = 180°
43x = 43 . . . . . . . . . . . . . . divide by °, subtract 137
x = 1 . . . . . . . . . . . . . . . divide by 43
The value of x is 1.
__
Additional comment
Given that the figure is a trapezoid, we have to assume that the top and bottom horizontal lines are the parallel bases.
<95141404393>
the exact value of sin 5pi/12 is
The exact value of sin(5π/12) is (√6 + √2)/4
Calculating the exact value of sin 5pi/12From the question, we have the following parameters that can be used in our computation:
sin 5pi/12
Express properly
So, we have
sin(5π/12)
Convert the angle to degrees
This gives
sin(5π/12) = sin(5/12 * 180)
Evaluate
sin(5π/12) = sin(75)
The actual value of sin(75) is (√6 + √2)/4
This means that
sin(5π/12) = (√6 + √2)/4
Hence, the exact value of sin(5π/12) is (√6 + √2)/4
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The exact value of sin 5π/12 is (√6 + √2)/4
What is trigonometric function?The trigonometric functions are real functions which relate an angle of a right-angled triangle to ratios of two side lengths.
Angle in trigonometry can be measured in either degree or radian.
π is a measurement in radian which is equivalent to 180° in degrees.
Therefore:
5π/12 = 5 × 180/12
= 75°
Therefore sin5π/12 = sin75°
sin75 = sin( 45+30) = sin45cos30+ cos 45sin30
= 1/√2 × √3/2 + 1/√2 × 1/2
= √3/2√2 + 1/2√2
= (√3+1)/2√2
rationalizing;
(2√6 + 2√2)/8
dividing through by 2
=(√6 + √2)/4
therefore tan75 =(√6 + √2)/4
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PLEASE HELP
Suppose that the functions fand g are defined for all real numbers x as follows.
f(x) = 5x
g(x)=4x-4
Write the expressions for (g.f)(x) and (g-f)(x) and evaluate (g+f)(2).
(g•f)(x) =
(g-f)(x) =
(g+r) (2)=
what is the calculation of
\(2 5 \6 - (4 1 \3 - 3 \2)\)
25 ( 39 -9)
6 (6)
25 × 30
6 6
125
6
20 5 [ans]
6
PLEASE HELPPP THANKS
Answer: The last option. X is greater than or equal to -3
Step-by-step explanation:
If you are searching for all of the values highlighted in red, then it must be every single value greater than x=-3 including the value itself (the dot located on the value is shaded, therefore you must include it within the domain).
Suppose the function h(x) = 2x - 9 is translated up 5 units to become a new function,
Xx). What's the equation of the new function?
A) x) = 7x-4
B)(x) = 2x - 14
C)(x) = 7x-9
D) (x)=2x-4
According to the given data the equation of the new function is (D) f(x) = 2x - 4.
What is meant by equation?An equation is a mathematical statement that indicates that two expressions are equal. It contains an equals sign "=" and may involve variables, constants, and mathematical operations such as addition, subtraction, multiplication, division, exponentiation, etc.
According to the given information:If we translate the function h(x) = 2x - 9 up by 5 units, the new function f(x) will have the form:
f(x) = h(x) + 5
Substituting the definition of h(x) into this equation, we get:
f(x) = 2x - 9 + 5
Simplifying, we have:
f(x) = 2x - 4
Therefore, the equation of the new function is (D) f(x) = 2x - 4.
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I usually have an answer to the question
But this time I'm gon' be quiet (this time)
Ain't nothing like the feeling of uncertainty, the eeriness of silence
This time, it was so unexpected
Last time, it was the dru.gs he was lacing
All legends fall in the making
Sorry truth, dying young, dem-on youth
What's the 27 Club?
We ain't making it past 21
I been going through paranoia
So I always gotta keep a g-un
Da-mn, that's the world we live in now
Yeah, hold on, just hear me out
They tell me I'ma be a legend
I don't want that title now
'Cause all the legends seem to die out
Answer:is this the question?
Step-by-step explanation:
Answer:
This sounds like a poem but more of a song . But are you asking a question??
Step-by-step explanation:
Help!! Factor the common factor out of each expression
Therefore , the solution of the given problem of equation comes out to be factor is (5b)(-5b+3).
What is the equation?A formula for connecting two statements using the equal sign (=) to denote equivalence is known as a mathematical equation. A mathematical equation in algebra is a statement that proves the equality of two mathematical expressions. For instance, the formula 3x + 5 = 14 places an equal sign between the variables 3x + 5 and 14. The mathematical relationship between the two sentences on either side of a letter is established. Most of the time, the symbol serves as both the one and only variable. for instance, 2x – 4 = 2.
Here,
the two numbers' primary factors are as follows:
-25\(b^{2}\) + 15b
Common prime factors can be multiplied to determine the GCF:
=> -25\(b^{2}\) = -(5)(5) * \(b^{2}\)
=> 15b = (5)(3)b
The expression can be factored in the following fashion because the GCF is 5b:
=> -(5)(5) * \(b^{2}\) + (5)(3)b
=> (5b)(-5b+3)
Therefore , the solution of the given problem of equation comes out to be factor is (5b)(-5b+3).
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Please help me need ASAP
Answer:
B
Step-by-step explanation:
Because you will divide U in X the give you correct answer.
50 POINTS HELP TRIGONOMETRY!!!
1. For each triangle below, write three ratios for the marked angle.
2. Find the measure of
3. Find the length of side x to one decimal place.
1) The three main trigonometric ratios of the given triangle are:
sin B = 5/9.43
cos B = 8/9.43
tan B = 5/8
2) The measure of angle A is: ∠A = 39.6°
3) The length of side x is: x = 39.5 mm
How to find the trigonometric ratios?The six trigonometric ratios of a right angle triangle are:
sin x = opposite/hypotenuse
cos x = adjacent/hypotenuse
tan x = opposite/adjacent
cot x = 1/tan x
sec x = 1/cos x
cosec x = 1/sin x
1) The three main trigonometric ratios of the given triangle are:
sin B = 5/9.43
cos B = 8/9.43
tan B = 5/8
2) The measure of angle A is gotten from:
∠A = cos⁻¹ (47/61)
∠A = 39.6°
3) The length of side x using trigonometric ratios is:
21/x = tan 28
x = 21/tan 28
x = 39.5 mm
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The system shown is
O
inconsistent
•
equivalent
consistent
Answer:
This is pogers
Step-by-step explanation:
What is ur minecraft usernaem
Answer:
consistent
A consistent and independent solution to a system of linear equations is one point
A consistent and dependent solution to a system of linear equations is where they are the same line ( they could also be called equivalent)
An inconsistent solution is where there is no solution, the lines do not cross
Since the lines cross at exactly one point, this is a consistent and dependent solution
The solution is at x = 3 ( 3 units to the right of the origin)
and y = 2 ( 2 units up from the origin)
Step-by-step explanation:
33 miles per gallon is approximately equal to how
many kilometers per liter? (Use 1 kilometer =
0.62 mile and 1 gallon = 3.79 liters.)
Answer:
14.04 km/L
Step-by-step explanation:
I km = 0.62 mile
or
1 mile = 1/0.62 km
1 gallon = 3.79 liters
So, 33 miles per gallon is:
= \(\frac{33*(1/0.62)}{3.79}\)
= 14.04 km/L
Hope this helps you. Do mark me as brainliest
33 miles per gallon is approximately equal to 14.01 kilometers per liter
What is conversion?"Conversion is the process of changing the value of one form to another."
For given example,
We know, 1 kilometer = 0.62 mile and 1 gallon = 3.79 liters
We need to convert 33 miles per gallon.
1 mile = 1.61 km
1 gallon = 3.79 liters
⇒ 33 × (1.61/3.79) = 14.01 kilometers per liter
Therefore, 33 miles per gallon is approximately equal to 14.01 kilometers per liter
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For each equation, determine whether it represents a direct variation, an inverse variation, or neither.
Find the constant of variation when one exists and write it in simplest form.
The equation 15x + 5y = 0 is a direct variation and the constant of variation is -3 while the equation -5x + 8y = 3 is neither a direct variation nor an inverse variation
How to categorize the type of each equation?As a general rule, we have the following forms of equation:
Direct variation: y =kx
Inverse variation: y = k/x
Where k represents the constant of variation
The equations 15x + 5y = 0 can be rewritten as:
5y = -15x
Divide by 5
y = -3x
The above equation take the form y = kx
This means that k = -3
Hence, the equation 15x + 5y = 0 is a direct variation and the constant of variation is -3
However, the equation -5x + 8y = 3 do not take any of the given forms
Hence, the equation -5x + 8y = 3 is neither a direct variation nor an inverse variation
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What is the solution to 4|x - 6 ≤ 16?
Ox≤2 or x ≥ 10
02≤x≤ 10
0-10≤x≤2
Ox≤-10 or x ≥ 2
PLEASE HELP ME I HAVE BEEN STRUGGLING FOR THE PAST HOUR CORRECT ANSWER WILL BE MARKED BRAINLEST
Answer:
I need the question
Step-by-step explanation:
Can i have brainliest anyways? I need one more :)
Answer:
whats the question
Step-by-step explanation: or sir
What is the value of x? □ ft. ( Will Mark Brainliest working on it now ).
Answer:
67.5 ftStep-by-step explanation:
Use the ratio of corresponding sides:
97.5/x = 71.5/(71.5 - 22)97.5/x = 71.5 / 49.5x = 97.5*49.5/71.5x = 67.533. Jeremy works at a bank and earns $800 for a 40-hour week. His sister, Beth works at a school and only earns $700 for a 30-hour week. Who makes more per hour?
A. Jeremy makes $10 more per hour
B. Beth makes $10 less per hour
C. Beth makes at least $3 more per hour
D. Jeremy makes at least $5 more per hour
Answer:
Step-by-step explanation:
Jeremy
Pay = 800
Time = 40 hours
Per hour pay= 800/40 = 20 dollars per hour.
Beth
Pay = 700
Time = 30 hours
Per hour Pay= 700 / 30 = 23.33
The answer is C. She gets 23.33 which is 3.33 more than her brother makes.
what is the variable "d" equal to in the equation 2d + 13
Answer:
d=-6.5
Step-by-step explanation:
2d+13=0
2d=-13
d= -13/2
d=-6.5
I really need help. Pweez?
Answer:
37
Step-by-step explanation:
top triangels 3 x4 = 12
Side triangels 1 x 5 = 5
the squer 4x 5 = 20
20 +5 +12= 37
Answer:
Step-by-step explanation:
20 inches i think
Question 6
Do set of numbers DO NOT form a Right Triangle?
9, 12, 15
5, 12, 13
3,4,5
4,5,6
Answer:
4,5,6
Step-by-step explanation:
square root of 4²+5²= approximately 6.4