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zaharov [31]
4 years ago
13

Can someone help me with this? I don’t need an explanation I just need the answer thank you :)

Mathematics
1 answer:
Fittoniya [83]4 years ago
5 0

Answer:

87.92 in²

Step-by-step explanation:

pi × (R² - r²) = area

Where R is the radius of the outer circle and r of the inner circle.

Since C = 2pi×r

37.68 = 2×3.14×r

r = 6 in

R = 6 + 2 = 8 in

Therefore,

pi × (R² - r²) = area

Area = 3.14 (8² - 6²)

= 87.92 in²

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Y=3x please mark as brainliest:)
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3 years ago
Please help me I don’t know how to do this ‼️
Aneli [31]

Answer:

A) 12x-36=360 (equation to find x)

B) X=33

C) 71 for 3x-28 and 109 fo 3x+10

Step-by-step explanation:

So first we know tha there are vertical angles present (the opposite side of an angle directly)

And we also know the two sides since the two angle measures are just two different sides

If you add up all the 4 angle syou’ll get 360

So initially

3x-28+3x-28+3x+10+3x+10=360

Combine and get 12x-36=360

Now solve for X

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3 years ago
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3 years ago
Julianne and Benjamin are financing $113,500 to purchase a house. They obtained a 15/5 balloon mortgage at 4.95%. What will thei
andrew-mc [135]

Answer:Balloon payment:$84,646.62

Step-by-step explaination:

Monthly payment

Monthly principal and interest payment (PI). The monthly payment is calculated using a term up to 15 years.

Total interest paid:$22,374.55

Total regular payments:$51,227.93

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5 0
4 years ago
The sides of a quadrilateral are 3, 4, 5, and 6. Find the length of the shortest side of a similar quadrilateral whose area is 9
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Answer:

9 units.

Step-by-step explanation:

Let us assume that length of smaller side is x.

We have been given that the sides of a quadrilateral are 3, 4, 5, and 6. We are asked to find the length of the shortest side of a similar quadrilateral whose area is 9 times as great.

We know that sides of similar figures are proportional. When the proportion of  similar sides of two similar figures is \frac{m}{n}, then the proportion of their area is \frac{m^2}{n^2}.

We can see that length of smaller side of 1st quadrilateral is 3 units, so we can set a proportion as:

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Take positive square root as length cannot be negative:

\sqrt{x^2}=\sqrt{81}

x=9

Therefore, the length of the shortest side of the similar quadrilateral would be 9 units.

4 0
3 years ago
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