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IRINA_888 [86]
3 years ago
12

A sphere has a radius of 25 ft . Find the surface area S of the sphere

Mathematics
1 answer:
Musya8 [376]3 years ago
4 0

Answer:

Step-by-step explanation:

The appropriate formula here is

S = 4·π·r²

and with r = 25 ft, we obtain:

S = 4·π · (25 ft)²  = 4 · π · 625 ft²

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Jill and Ben have the same pens Jill has 3 full boxes of pen and 2 loose pens Ben has 2 full boxes of pen and 14 loose pens how
defon
Let x be the number of pens in a box.

Jill : three full boxes of pen and 2 loose pens. 3x + 2
Ben: two full boxes of pen and 14 loose pens. 2x + 14

Jill and Ben have the same pens. 
Jill        = Ben
3x+2    = 2x + 14
3x - 2x = 14 - 2
      1x  = 12
         x = 12

To check:
Jill            =       Ben
3x + 2      =       2(x) + 14
3(12) + 2  =       2(12) + 14
36 + 2      =       24 + 14
           38 = 38

There are 12 pens or a dozen of pens in a full box.
8 0
3 years ago
Suppose that the function​
Dafna11 [192]

Answer:

<em>(</em><em>f-g</em><em>)</em><em>(</em><em>x</em><em>)</em><em>=</em><em> </em><em>-3x</em><em>^</em><em>3</em><em> </em><em>+</em><em> </em><em>x</em><em>^</em><em>2</em><em> </em><em>+</em><em> </em><em>6x</em>

<em>(</em><em>f</em><em>+</em><em>g</em><em>)</em><em>(</em><em>×</em><em>)</em><em>=</em><em> </em><em>3x</em><em>^</em><em>3</em><em> </em><em>+</em><em> </em><em>x</em><em>^</em><em>2</em><em> </em><em>+</em><em> </em><em>6x</em>

<em>(</em><em>f</em><em>•</em><em>g</em><em>)</em><em>(</em><em>2</em><em>)</em><em>=</em><em> </em><em>6x</em><em>^</em><em>3</em><em> </em><em>+</em><em> </em><em>36x</em><em>^</em><em>3</em>

Step-by-step explanation:

I hope that helps

5 0
3 years ago
Need help with this question, if you don’t know it don’t answer it please
Lerok [7]

Answer:

54

Step-by-step explanation:

9 x 3 x 2 = 54

7 0
3 years ago
Read 2 more answers
Simplify 3r+n2-r+5-2n+2
Ksenya-84 [330]

2r+7+2n+n2

Because I combined the ones with like terms.

8 0
4 years ago
Read 2 more answers
At which values of X does the function F(x) have a vertical asymptote check all apply F(x) =3/(x+2) (x-7)
finlep [7]

Answer:

When x = -2 or when x = 7

Step-by-step explanation:

x+2 is a factor in the denominator. If x = -2, the factor becomes zero.

x-7 is a factor in the denominator. If x = 7, the factor becomes zero.

We can't have zero as a factor in a denominator because division by zero is not defined. It doesn't have any meaning.

8 0
3 years ago
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