Complementary angles add up to 90 degrees.
So to find A you would need to add A and B together and equal it to 90 (3x+25+5x-7=90)
Combine like terms together (8x+18=90)
Subtract 18 from night sides (8x=72)
Divide by 8 on both sides (x=9)
Then to find A substitute x into its equation (3(9)+25)=(27+25)=52
A=52 I think
Answer:
9 dollars and 40 cents
Step-by-step explanation:
(x+1)2-
=it is meant to be (x+1)2
=2(x) + 2(1)
= 2x +2
I think
9514 1404 393
Answer:
6a^5b^7
Step-by-step explanation:
The applicable rule of exponents is ...
(a^b)(a^c) = a^(b+c)
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It looks like you want to simplify ...
The quotient rule for exponents states that if we divide exponents with the same base, then we can subtract the exponents and keep the base unchanged.
