Perform the indicated operation. Be sure the answer is reduced. k+5/k^2+3k-10 MULTIPLIED BY 4-k^2/7k+14

ANSWER CHOICES:
-1/7
1/7
-7

please explain thank you!!

Which of the following is a solution of z^6 = 64i? 2(cos105° + isin105°) 2(cos120° + isin120°) 2(cos135° + isin135°) 8(cos15° + isin15°)

Tell whether the two rates form a proportion

How many heads would you expect if you flipped a coin twice? first, fill in the table below with the correct probabilities. hint: the sample space for flipping a coin twice is {hh, ht, th, tt}. a = b = c = f