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tangare [24]
3 years ago
6

The diameter of a circle is 8 ft. Find its area in terms of pi

Mathematics
2 answers:
aev [14]3 years ago
4 0

Answer:

d = 2r => r = d/2 = 8ft/2 = 4ft

A = π·r²

= π·(4ft)²

= 16π ft²

= 16×3.14 ft²

= 50.24 ft²

WITCHER [35]3 years ago
3 0

Answer:

16π

Step-by-step explanation:

Area = πr²

r - radius

r = d/2 = 8/2 =4

Area = 4²π = 16π

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his father weighs 28 kg more :)

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3 years ago
What is 2,000,000 x 10,000 x 170 x 10E1146?
Valentin [98]

Answer:

3.4*10^1159

Step-by-step explanation:

2,000,000 x 10,000 x 170 x 10E1146

2,000,000 x 10,000 = 2*10^10

2*10^10*170 =340*10^10

Putting this in proper scientific notation by moving the decimal 2 places to the left, means adding 2 to the exponent

3.4*10 ^ (10+2)

3.4*10^12

10E 1146  means 10*10^1146

This is really 1 * 10^(1146+1)

3.4*10^12 * 10^1147

We add the exponents

3.4*10^(12+1147)

3.4*10^1159

5 0
3 years ago
HELP TIMED BRAINLIST
lesya692 [45]

Answer:

it's D

Step-by-step explanation:

You use distribute property, then add all like terms

3 0
3 years ago
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Four students were asked to write an expression which has terms that have a greatest common factor of ab. The
Lynna [10]

Answer: Peyton

Step-by-step explanation:

Michelle: Greatest common factor is 1

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Peyton: Greatest common factor is ab

7 0
2 years ago
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Find the numerical values of -3|x|+2x-1 if x=-5. PLSSSS HELP
Kisachek [45]

Answer:

26

Step-by-step explanation:

Since x = -5, we can replace x with it's numerical -5, right? The problem tells you that x is equal to -5. So, just replace any x you see with -5.

So in this case,

-3|x|+2x-1

turns into:

-3|(-5)|+2(-5)-1

You can use a calculator or solve it by hand to see what the answer is.

-3|(-5)|+2(-5)-1\\-3(5)+2(-5)-1\\-15+(-10)-1\\-25-1\\-26

3 0
2 years ago
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