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zepelin [54]
3 years ago
14

If the radius of a circle is increased by 100%, then the area is increased by:

Mathematics
1 answer:
shtirl [24]3 years ago
5 0
A_1=\pi r^2\\\\R=2r\ then\ A_2=\pi R^2\to A_2=\pi(2r)^2=4\pi r^2\\\\A_2-A_1=4\pi r^2-\pi r^2=3\pi r^2=3A_1\\\\3=300\%\\\\Answer:(C).
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Easy question i will mark braineliest
Yuki888 [10]

Answer:

<h2>0.67</h2>

Step-by-step explanation:

5(y - 3.8) = 4.7(y - 4)

Distribute 5 through the parentheses

5y - 19 = 4.7(y - 4)

Distribute 4.7 through the parentheses

5y - 19 = 4.7y - 18.8

Move ' 4.7 y ' to L.H.S and change it's sign

5y - 4.7y - 19 =  - 18.8

Move constant to R.H.S and change it's sign

5y - 4.7y =  - 18.8 + 19

Collect like terms

0.3y =  - 18.8 + 19

Calculate

0.3y = 0.2

Divide both sides of the equation by 0.3

\frac{0.3y}{0.3}  =  \frac{0.2}{0.3}

Calculate

y = 0.67

Hope this helps...

Best regards!!

3 0
3 years ago
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The sum of two consecutive odd integers is 188. list the numbers from smallest to largest:
mixer [17]
X and x+ 2 equal 188
add all the like terms to get 2x+2=188
subtract 2 from each side
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divide by 2
x=93
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3 0
3 years ago
Solve the following inequality for h. Write your answer in simplest form. -10h+1&gt;-7h+9
emmasim [6.3K]

Answer:

h<-8/3

Step-by-step explanation:

collect like terms

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3h>8

divide both sides of the inequality by -3 and flip the inequality sign

h<-8/3

4 0
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Find g(-1)).<br> g[(-1)) =
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Answer:

Step-by-step explanation:

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That's the two polynomials
8 0
3 years ago
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