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damaskus [11]
3 years ago
8

What's the surface area of a sphere with radius 5 centimeters

Mathematics
1 answer:
torisob [31]3 years ago
3 0
Surface area: 4*pi*r^2 = 4*pi*5^2= 4*25*pi = 100pi or <span>314.16</span>
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Colleen has a prepaid phone card with $40 on it. It costs her $0.25 for each minute she spends on the phone. How much money will
Grace [21]

Answer:she will have $25 left .

Step-by-step explanation:

0.25(60)  = 15

$40 - $15 = $ 25

5 0
3 years ago
Ryan works mowing lawns and babysitting. He earns $8.20 an hour for mowing and $7.70 an hour for babysitting. How much will he e
Snezhnost [94]

Answer:

Step-by-step explanation:

Ryan works mowing lawns and babysitting. He earns $8.20 an hour for mowing and $7.70 an hour for babysitting. Therefore, the expression for the total amount that he would earn if he mows lawns for x hours and babysits for y hours would be

8.2x + 7.7y

Therefore, the amount that he would earn for 3 hours of mowing and 7hours of babysitting is

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4 0
3 years ago
-6+x/x^4 limit at x →0
Jlenok [28]

Answer:

not existing

Step-by-step explanation:

\frac{ - 6 + x}{ {x}^{4} }

lim x goes to 0 is

\frac{ - 6 + 0}{ {0}^{4} }  =   \frac{ - 6}{0}

so not exist

I'm not sure if u mean that or this

7 0
3 years ago
Determine whether the following is an expression or an equation.
RideAnS [48]

Answer:

C. The statement is an equation because there is an equality symbol.

Step-by-step explanation:

Equation:

Combination of terms joined by the sign minus, plus, multiplication, and division and has equality sign.

Example

5x+45=-5

Term:

A Numbers. (Only)

Example:

9

Combination of a number and a variable joined by multiplication or division.

Example:

9x, 6ab, 10n

Variable:

a symbol that is written with a number or a term.

6ab

Expression:

Terms joined by the sign plus or minus

Hope this helps ;)❤❤❤

5 0
3 years ago
Sophie pays m dollars to rent a car for the weekend. On the drive
antiseptic1488 [7]

Answer:

1/2m+25

Step-by-step explanation:

if melody pays 1/2 then sophie pays 1/2 too and then she also spends 25 so you just have to add them together.

7 0
3 years ago
Read 2 more answers
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