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Sliva [168]
3 years ago
7

Find the surface area of a sphere with a diameter of 32 mm. Express your answer in terms of π.

Mathematics
2 answers:
Naddika [18.5K]3 years ago
6 0
<span>B. 1,024π mm2.

I hope helped.

good luck to you
</span>
Dmitry [639]3 years ago
5 0
<span>Sphere Surface Area     =    <span> 4 • <span>π • r²</span></span></span><span>
radius = 16mm
</span><span>Sphere Surface Area     =    <span> 4 • <span>π <span>• 16²
Sphere Surface Area     =    </span></span></span></span><span>4 • <span>π <span>• 256
</span></span></span>Sphere Surface Area     =  1,024 <span><span>• <span>π
Answer is B

</span></span>

</span>
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An airline company is considering a new policy of booking as many as 191 persons on an airplane that can seat only 180. (Past st
notka56 [123]

Answer:

1.3559644*10^-^5

Step-by-step explanation:

From the information given we extract the following data

Total Number of Trials (N) = 191

Required Value (x) = 181 (notice it is not 180 since at that value we have enough passengers)

Odds of success (p) = 0.85

Using the binomial formula for calculating probability, i.e.

P(x; N, p) = nCx * p^x *(1-p)^{N-x}

Inputting the values

P(181; 191, 0.85) = 191C181 *0.85^{181}  *(1-0.85)^{191-181} \\ P(181; 191, 0.85) = 1.3559644*10^-^5

3 0
3 years ago
Find the solution to the system of equations given below using substitution. PLEASE ANSWER QUICKLY
irinina [24]

Answer:

option D

D. x = 5, y = 2

Step-by-step explanation:

Given in the question two equation,

Equation 1

5.3x + y = 28.5

Equation 2

4.2x + 3.1y = 27.2

rearrange equation 1 in terms of y

y = 28.5 - 5.3x

Substitute the value of y in equation 2

<h3>4.2x + 3.1(28.5 - 5.3x) = 27.2</h3>

4.2x + 88.35 - 16.43x = 27.2

4.2x - 16.43x = 27.2 - 88.35

-12.23x = -61.15

x = 61.15/12.23

x = 5

put value of x in any of the equation

<h3>5.3(5) + y = 28.5</h3>

y = 28.5 - 26.5

y = 2

5 0
3 years ago
Can some one help me please
frutty [35]
I believe The answer is B
6 0
2 years ago
3y = -x-3 <br> 2y-14 = 4x<br> 4x-3-y = 0<br> x-12 = -3
geniusboy [140]

x=-3 y=0 probably wrong but it’s the root of at least one of these

5 0
3 years ago
Please help with 16 and 17 those are hard
notka56 [123]
The answer to number 17 is c
6 0
3 years ago
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