−5ab2+2ab+a+2
That is the answer if you need more help on other questions use Math-way it helps answer all problems like that
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Answer:
20
Step-by-step explanation:
The two given and marked angles add up to 90.
A = x
B = 3x + 10
A + B = 90 Substitute for A and B. A and B are just letters I gave things.
x + 3x + 10 = 90 Combine the left
4x + 10 = 90 Subtract 10 from both sides.
4x +10-10 = 90-10 Combine
4x = 80 Divide by 4
4x/4=80/4
x = 20
Fifteen increased by a number
X to the power of 8
When dividing powers, you subtract the "small numbers". When multiplying, you add them. 3-(-5) = 8
Hope it helps!
Read the problem.
Write down the facts and figures.
Find a relationship between what is given and what must be found.
Do the work.
