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Darina [25.2K]
3 years ago
12

The area of circle Z is 64 ft?

Mathematics
1 answer:
sergiy2304 [10]3 years ago
5 0

Answer:

8 ft.

Step-by-step explanation:

When you find a multiple to multiply by itself to get 64, that would be 8. So then that would be your answer!

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For what values of a is the value of the binomial 2a−1 smaller than the value of the binomial 7−1.2a by 7?
Nimfa-mama [501]

ANSWER

a =  \frac{5}{16}

EXPLANATION

We want to find the value of a for which the binomial, 2a-1 is smaller than the value of the binomial 7-1.2a by 7.

This means that, when we subtract 2a-1 from 7-1.2a, we should get 7.

7 - 1.2a - (2a - 1) = 7

Expand:

7 - 1.2a - 2a  + 1= 7

Group similar terms:

- 1.2a - 2a = 7 - 7 - 1

- 3.2a =   - 1

Divide both sides by -3.2,

a =  \frac{ - 1}{ - 3.2}

a =  \frac{5}{16}

7 0
3 years ago
Please help me!!!!!!! It's very important!!!!
IgorLugansk [536]
The formula for the area of a circle is A = (pi)r^2
So if you plugged in the numbers you would get this equation A = (3.14)97^2
Solve the equation and you would get your answer which is 29544.26
Hope this helps! :)
6 0
3 years ago
Trina is purchasing a new bike the store is having 20% off sale and she as 10% coupon of the sale price if the original price of
marusya05 [52]
20% of 89.75 is 17.95
\frac{20}{100}  =  \frac{x}{89.75}  \\ x =  \frac{89.75 \times 20}{100} =  \frac{1795}{100}  = 17.95
so :
89.75 - 19.95 = 71.8
the Trina's coupon will subtract the answer by 10%:

10%of 71.8 is 7.18
\frac{10}{100}  =  \frac{x}{71.8}  \\ x =  \frac{71.8 \times 10}{100}  =  \frac{718}{100}  = 7.18
so the final answer is:
71.8 - 7.18 = 64.62
she has to pay $64.62
hope this helps
8 0
3 years ago
PLEASE HELP FIND FUNCTION FOR PIECEWISE! 60! POINTS! ILL GIVE BRAINLIEST
ludmilkaskok [199]

Answer:

try this website called math   way

Step-by-step explanation:

it should help it answers questions if you take a picture too! :)

5 0
3 years ago
What is the solution set of x2 + 5x - 5 = 0?
Llana [10]

If you're completing the square the answer is in the image.

expression

x^2 + 5x - 5=ax^2+bx+c

a=1, b=5, c=-5, and you can solve it that way.

4 0
3 years ago
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