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marishachu [46]

3 years ago

12

The ratio of the perimeters of two similar triangles is 4:7. What is the area of each of these triangles if the sum of their are

as is 65cm^2.

1 answer:

garri49 [273]3 years ago

3 0

For similar triangles, it is just 4^2 and 7^2

So for the smaller triangle, the area is 16, and for the bigger one, it is 49

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Solve for n:<br> 6n − 2(4n + 7) + 4 = -2<br> A:-6<br> B:-4<br> C:4<br> D:6

almond37 [142]

Answer:

B

Step-by-step explanation:

6n - 2(4n + 7) + 4= -2 firstly you open the bracket

6n - 8n - 14 + 2 = -2 then you collect the like terms

6n - 8n= -2 + 14 - 4 then add and subtract and divide by the coefficient

-2n= 12 - 4

-2n = 8

= n = 8 ÷ -2

n = -4

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lukranit [14]

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2 years ago

Earl is spending money at a average rate of $675 per week after 11 weeks his savings is down to $13,500. Write an explicit equat

Gala2k [10]

Answer:

20925

Step-by-step explanation:

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6 0

2 years ago

The diameter of a circle is 6 centimeters. What is the circle's area?<br><br> Use 3.14 for pi

Lynna [10]

Step-by-step explanation:

diameter=

$2 \times\pi \times r = 6 \\ r = \frac{6}{2 \times 3.14} = 0.955 \\ area = \pi \times {r}^{2} = 3.14 \times {0.955}^{2} \\ = 2.87\: {cm}^{2}$

7 0

3 years ago

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Do the ratios 10:9 and 17:15 form a proportion?

KIM [24]

Answer:

Nope! these ratios do not form a proportion

Step-by-step explanation:

if you use a calculator to divide 10/9, you get 1.111 repeating.

if you use a calculator to divide 17/15, you get 1.133 repeating.

<em>since 1.111 does not equal 1.113, </em><em>these ratios are not proportional. </em>

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3 years ago