3 years ago

I need help with this problem

Mathematics

1 answer:

KatRina [158]3 years ago

5 0

Answer:

76

Explanation:

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A rectangular rug has an area of 84 square feet. If its length is 2 feet more than twice its width, find the dimensions of the

weeeeeb [17]

L=2W+2

W=(L-2)/2

A=LW, using W from above makes this

A=L(L-2)/2

2A=L^2-2L

L^2-2L-2A=0, given A=84

L^2-2L-168=0

(L-14)(L+12)=0, since L>0

L=14

The length of the rug is 14 ft

(W=(L-2)/2=6 ft)

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2. In the figure, what is m ZC? (1 point)<br> 15°<br> 35°<br> 50°<br> 65°

Doss [256]

Answer:

35°

Step-by-step explanation:

By the property of intersecting secants outside of a circle.

$m\angle C = \frac{1}{2} \times (100° - 30°)\\\\m\angle C = \frac{1}{2} \times 70°\\\\\huge \red {\boxed {m\angle C = 35°}}$

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3 years ago

What is the solution of x-7= ir+14,

weqwewe [10]

Answer:

x=12

Step-by-step explanation:

put the x at one side and the numbers ar the other

5/2x-3/4x=14+7

10/4x-3/4x=21

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x=12

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3 years ago

I need help with this problem ​

I need help with this problem