All categories

3 years ago

What is the surface area of the sphere?

Mathematics

2 answers:

pickupchik [31]3 years ago

8 0

$Formula: A=4\pi r^{2}$

$Diameter:10\\Radius:5$

$Solution: A=4\pi r^{2} =4*\pi *5^2=314.15927$

$The\:Correct\:Answer\:Is\:C.\:314.16\:mi^2$

$Hope\:This\:Helps!!!$

$-Austint1414$

san4es73 [151]3 years ago

5 0

I believe it's

C. 314.16mi^2

If it's wrong just let me know and I'll help you the best I can enjoy and have a great day!

You might be interested in

A satellite can move at 17,000 miles per hour. how many hours will it take to reach a star that is three light years away? recal

Feliz [49]

Distance to the star in light years = 3 * 0.62 * 9.5 * 10^12 = 1.767 * 10^13 miles

dividng this by 17,000 gives 1.039411765 * 10^9 hours

7 0

4 years ago

Find a 75% confidence interval for the population average weight μ of all adult mountain lions in the specified region. (Round y

kupik [55]

Answer:

75% confidence interval is 91.8±16.66. That is between 75.1 and 108.5 pounds.

Step-by-step explanation:

The question is missing. It is as follows:

Adult wild mountain lions (18 months or older) captured and released for the first time in the San Andres Mountains had the following weights (pounds): 69 104 125 129 60 64

Assume that the population of x values has an approximately normal distribution.

Find a 75% confidence interval for the population average weight μ of all adult mountain lions in the specified region. (Round your answers to one decimal place.)

75% Confidence Interval can be calculated using M±ME where

M is the sample mean weight of the wild mountain lions ( $\frac{69 +104 +125 +129+60 +64}{6} =91.8$ )

ME is the margin of error of the mean

And margin of error (ME) of the mean can be calculated using the formula

ME= $\frac{t*s}{\sqrt{N} }$ where

t is the corresponding statistic in the 75% confidence level and 5 degrees of freedom (1.30)

s is the standard deviation of the sample(31.4)

N is the sample size (6)

Thus, ME= $\frac{1.30*31.4}{\sqrt{6} }$ ≈16.66

Then 75% confidence interval is 91.8±16.66. That is between 75.1 and 108.5

3 0

3 years ago

Which expression represents 5 less thann twice

Gwar [14]

Answer:

2x -5, like that you didn't put enough.

8 0

4 years ago

a rectangular school gym has a length of 120 feet and a perimeter of 520 feet.what is the width,in feet,of the school gym?

Genrish500 [490]

Hi, P = l+l+w+w 520-120-120= 280÷2 w = 140ft

7 0

3 years ago

A sine curve with a period of 8, an amplitude of 2, a left phase shift of /3, and a vertical translation down 5 units.

S_A_V [24]

Answer:

$y=2sin[\frac{\pi}{4}(x+3) ]-5$

Step-by-step explanation:

The standard form for a sinusoidal function is given by:

y = Asin[B(x - C)] + D

Where A is the amplitude of the sine wave, the period is 2π/B, C is the phase shift and D is the vertical displacement / translation

Given:

A = 2, D = -5 (down), C = -3 (left).

8 = 2π/B; B = π/4

Therefore:

$y=2sin[\frac{\pi}{4}(x+3) ]-5$

8 0

4 years ago