Note: I'm assuming you mean that
.
Taking the logarithm gives:
Using our rules of logarithms (
), we have:
This corresponds to answer A.
Answer: The answer is 1,037. You did good with the first three steps but you need to do the same for the last step, because you have 21 you have to find how many times 3 goes into it, which would be 7, and that gives you your full answer of 1,037.
The answer is D because you have to apply the D, or distribute, the number 12 to the x and 4 to get 12x+48.
Given x = adjacent
10 = hypothenuse
Sohcahtoa (cah)
Cosine uses both adjacent and hypothenuse
x/10 = cos(37)
0.79863551 = x/10
x = 7.9763551
Solution: x = 8