Answer: The answer is in the 1st image.
Explanation: The explanation is in the 2nd image.
What are the x-intercepts of the function f(x) = –2x2 – 3x + 20?
1 answer:
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take father's age as x
if it is doubled i.e 2x .we get the answer as 20 less than 100 which means 100-20=80
accordingly the equation will be 2x=80
x=40
given that ,
son is 1/4 th of his father
hence ,
son = 1/4×(x)
I.e, 1/4×40 =10
Hope it helps
