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Zarrin [17]
3 years ago
12

Which equation can be used to find the surface area of the sphere? A sphere with a diameter of 16 inches.

Mathematics
2 answers:
Sveta_85 [38]3 years ago
7 0
The equation used to find the surface area of a sphere is 4 x pi x r^2. The surface area of the sphere with a diameter of 16 inches would be
4 x 3.14 x 8^2 = 803.84. Therefore, the surface area of a sphere with a diameter of 16 inches would be 804 square inches. (rounded the decimal)
KatRina [158]3 years ago
6 0

Answer:

a

Step-by-step explanation:

i did it

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Leroy's total job benefits were $50,150 last year. His total job expenses for traveling and for professional developement for th
kykrilka [37]

Answer:

A. $46,650

Step-by-step explanation:

Taking the first number of $50,150, we have to subtract his expenses. After subtracting Leroy's expenses, we get $46,650.

  50150

<u>-    3500</u>

  46650

7 0
3 years ago
Read 2 more answers
Assume that​ women's heights are normally distributed with a mean given by mu equals 62.5 in​,and a standard deviation given by
Misha Larkins [42]

Answer:

(a) 0.5899

(b) 0.9166

Step-by-step explanation:

Let X be the random variable that represents the height of a woman. Then, X is normally distributed with  

\mu = 62.5 in

\sigma = 2.2 in

the normal probability density function is given by  

f(x) = \frac{1}{\sqrt{2\pi}2.2}\exp{-\frac{(x-62.5)^{2}}{2(2.2)^{2}}}, then

(a) P(X < 63) = \int\limits_{-\infty}^{63}f(x) dx = 0.5899

   (in the R statistical programming language) pnorm(63, mean = 62.5, sd = 2.2)

(b) We are seeking P(\bar{X} < 63) where n = 37. \bar{X} is normally distributed with mean 62.5 in and standard deviation 2.2/\sqrt{37}. So, the probability density function is given by

g(x) = \frac{1}{\sqrt{2\pi}\frac{2.2}{\sqrt{37}}}\exp{-\frac{(x-62.5)^{2}}{2(2.2/\sqrt{37})^{2}}}, and

P(\bar{X} < 63) = \int\limits_{-\infty}^{63}g(x)dx = 0.9166

(in the R statistical programming language) pnorm(63, mean = 62.5, sd = 2.2/sqrt(37))

You can use a table from a book to find the probabilities or a programming language like the R statistical programming language.

4 0
3 years ago
Work out the value of 4(2x+3y) when x=8 and y=-3
meriva
4(2 x 8 + 3 x (-3))
4(16 + (-9))
4(7)
=28

8 0
2 years ago
Express 10 3/2 in simplest radical form
Alborosie

Answer:

23/2

Step-by-step explanation:

first turn the mixed number into a fraction:

2*10=20

20+3=23

so, we get 23/2

7 0
3 years ago
Josh rents a kayak at a nearby state park. He pays a one-time rental fee of $12.50 plus an additional $3.75 for each hour he spe
Alex_Xolod [135]
12.99+3.75x4.5=29.87
4 0
3 years ago
Read 2 more answers
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