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allochka39001 [22]
3 years ago
11

Solve for a.

Mathematics
2 answers:
masya89 [10]3 years ago
5 0
A + (-7) is the same as a - 7, so you could rewrite it as
a - 7 = -17
+ 7
a = -10
So your answer is a = -10, I hope this helps!
alina1380 [7]3 years ago
5 0

Answer:

-10

Step-by-step explanation:

just took the test

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7 0
3 years ago
I need help! What should I do?!
larisa [96]
So, to find the area of a triangle we use the formula

a=1/2bh

So to find the base measure across the bottom line.
And to find the height, measure the length of the sitter line (the one in the middle spanning from top to bottom)

We then multiply the base and the height

After that we take the answer we got from multiplying the base and the height and divide it by 2

And the number you get after you divide it by 2 is the area of the triangle.

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