Let S=score on the second exam, then
(67+S+(S+7))/3=84
cross multiply
2S+74=252
2S=178
S=89
So second exam: 89
third exam=89+7=96
Check: (67+89+96)/3=84 ok.
Answer:
D and E
Step-by-step explanation:
A vertical asymptote in this case would mean that the denominator is equal to zero, which is undefined. You can factor the denominator to get you the fraction:
x+2 / (x+6)(x-4) = 0
Then you know that to equal zero, x would have to equal either -6 or 4, which is E and D.
I guess you mean

On the left side, we have a common factor of
, so that

Recall that

from which it follows that

No, Chloe didn't cut the correct amount of fabric, because she needs 0.1125 extra fabric to account for error, as an extra 15% of 0.75 yards of fabric