The total of three integers' squares is 138, whereas the sum of their products divided by two is 131. Their total is:
A. 20
B. 30
C. 40
D. None of these
Answer:A
The total of three integers' squares is 138, whereas the sum of their products divided by two is 131. Their total is:
A. 20 B. 30 C. 40 D. None of these