Step-by-step explanation:
50-50+15d =125-50
15d = 75
15d/15=75/15
d=5
-15 and -42 both add to -57 and multiply to 630
Answer:
C. 7
49 square rooted would be 7 and the 4 in (x+4) would be negative and not positive like the answer shows.
Since 6 + 8 = 14 this is the longest that the third side can be.
The answer is B
