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g100num [7]
3 years ago
6

a rectangle has a width that is 7 more than its length and an area of 30. Find the length and width of the rectangle

Mathematics
1 answer:
just olya [345]3 years ago
5 0

Answer:

length = √ 210/7

width = √ 210

Step-by-step explanation:

Area = 30

length = x

width = 7x

30 = 7x^2

30/7 = x^2

√ 210/7 = x

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For trapezoids, we have some rules:

The angles always need to ad up to 360°

We also have that the base angles are suplementary, so they need to ad to 180°. (one smaller or equal than 90° and the other greater or equal than 90°)

Then, if the angles are one equal to 60° and the other 45°.

The other two angles are:

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for the other we have an angle of 60° and other of 120°.

This two angles can be one next to the other, so may be suplementary.

this mens that the other two angles may be any angles that add to 180° (again, one is less or equal than 90° and the other is greater or equal than 90°)

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