Can someone plz show me how to do this. Thx

Mathematics

2 answers:

-Dominant- [34]3 years ago

4 0

Are you familiar with how to find the area of a rectangle?
A= base*height -- for rectangles

how about the area for a trapezoid?
well what happens when we cut the triangular section from one side and then fit it onto the other side, do we get a rectangle?

so finding the area of a trapezoid is essentially the same as finding the area of a rectangle.
In your case, t is the height,18 mi is your base and the area given is 216mi^2

"plug" those all into the rectangular area equation, divide the base from both sides, and you should be able to determine height

NISA [10]3 years ago

3 0

So to find area you have to use this rule : area= base•height and if you have area and one side you will have to divide to find another side: 216 : 18 =12

12 mi is missing length

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Sum of the numbers m and n decreased by their product; write the algebraic expression

Oduvanchick [21]

<h3>Answer: m+n-mn</h3>

You can write mn as m*n

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Explanation:

The sum is the result of adding two or more numbers. Saying the sum of m and n means m+n.

Then we subtract off the product of m and n. The product is the result of multiplying m and n. We say m*n or mn to indicate their product.

Overall, we end up with m+n-mn

8 0

4 years ago