A + b = 15 ..... eq 1
a – b = 12 ...... eq 2
So a = 15 – b
Substitute in eq 2 :
15 – b – b = 12
15 – 2b = 12
–2b = 12 – 15
b = 1.5
So a = 15 – 3/2 = 13.5
4ab = 4 x 13.5 x 1.5 = 81
Answer:
less then
Step-by-step explanation:
the square root of 7 is 2.64 and 14/5 is = 2.8
Answer:
≈3.99938
Step-by-step explanation:
Answer:
Step-by-step:
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