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3 years ago

13

Volume of a sphere, either enter an exact answer in terms of pi or use 22/9 for pi

1 answer:

Alja [10]3 years ago

7 0

22/9 because if you need a number

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How can you use expressions to find the percent of a number?

netineya [11]

Answer:

Review how to find the percent of an amount to find the percent of an amount or of a whole we write

Step-by-step explanation:

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2 years ago

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faust18 [17]

Answer:

best approximate is 78 F. to find x, count number of hours between 5 am and 2 pm (which is 9). Substitute 9 into the equation and solve. hope this helps!

Step-by-step explanation:

$y = - 0.37 {x}^{2} + 6.15x + 52.3 \\ y = - 0.37 ({9}^{2} ) + 6.15(9) + 52.3 \\ y = - 0.37(81) + 6.15(9) + 52.3 \\ y = - 29.97 + 55.35 + 52.3 \\ y = 77.68$

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3 years ago

The line segment, AB has a point C as its midpoint. If A is at (2,2) and C is at (5,4) what are the coordinates of the endpoint

Alecsey [184]

Answer:

( 8 , 6 )

Step-by-step explanation:

A = ( 2 , 2 ) and C = ( 5 , 4 )

→ Form an equation

$\frac{2+x}{2} =5$ and $\frac{2+y}{2}=4$

→ Now solve them

2 + x = 10 and 2 + y = 6

→ Simply find the values

x = 8 and y = 6

5 0

3 years ago

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(2^x+y , 3^x-y )= (16,9) find the value of x and y

Jet001 [13]

Answer:

x=3,y=1

Step-by-step explanation:

2^x+y=16,3^x-y=9

16=2^4,9=3^2

x+y=4,x-y=2 add both

2x=6,x=3

3-y=2,y=1

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2 years ago

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Suppose that y varies inversely with x. Use the information to find k, and then choose the equation of variation. X=2 when y=2

Vlad1618 [11]

Answer:

see explanation

Step-by-step explanation:

Given that y varies inversely as x then the equation relating them is

y = $\frac{k}{x}$ ← k is the constant of variation

To find k use the condition

x = 2 when y = 2

k = yx = 2 × 2 = 4, hence

y = $\frac{4}{x}$ ← equation of variation

7 0

3 years ago