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Scrat [10]
2 years ago
9

Circle A has an area of 500 in? The diameter of circle B is three times the diameter of circle A. Estimate the area of circle B.

!I will give brainlest!​
Mathematics
1 answer:
Monica [59]2 years ago
5 0

Step-by-step explanation:

circle has an area of 500 inches if we multiply it by 3 we get 1500 inches

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1] If 221ₓ= 25₁₀ find X<br> 2] if 3ₓ + 34ₓ - 40ₓ = 0 find x<br> 3] if 23ₓ = 1111₂ find x
Olin [163]

1.

2\cdot x^2+2\cdot x^1+1\cdot x^0=25\\2x^2+2x+1=25\\2x^2+2x-24=0\\x^2+x-12=0\\x^2+4x-3x-12=0\\x(x+4)-3(x+4)=0\\(x-3)(x+4)=0\\x=3 \vee x=-4

The base can't be negative, therefore x=3.

2.

3\cdot x^0+3\cdot x^1+4\cdot x^0-4\cdot x^1+0\cdot x^0=0\\3+3x+4-4x=0\\x=7

3.

2\cdot x^1+3\cdotx^0=1\cdot 2^3+1\cdot2^2+1\cdot2^1+1\cdot2^0\\2x+1=8+4+2+1\\2x=14\\x=7

5 0
1 year ago
Need help with the question that says how long is the string in centimeters.SHOW YOUR WORK!!!
Nikolay [14]
Important information:
The string is 8.5 inches long.
1 inch = 2.54 centimeters

How to solve:
Multiply both sides by 8.5 to get 8.5 inches = x centimeters.
2.54 • 8.5 = 21.59

Answer:
8.5 inches equals 21.59 centimeters.

Hope this helps! :)
4 0
3 years ago
Ratios equivalent to 5:1
Virty [35]
Ratios equivalent to 5:1 are
10:2 
15:3      
5 0
3 years ago
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24
TiliK225 [7]

Answer:

90k-20k = 70k they had 1709 interest money

Step-by-step explanation:

3 0
3 years ago
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Charlie does the following problem:
Alika [10]
The answer is B. He is incorrect because he should have only 5 factors of 3.
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2 years ago
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