line 1
B.
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C.
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D.
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Report this answered this on accident ........
Answer:
shorter = 17 longer = 85
Step-by-step explanation:
x = longer y = shorter
102 = x + y (whole pipe length, 102, = sum of the 2 pieces, x + y )
x = 5y (longer piece = 5 times length of shorter piece)
102 = 5y + y (substitute for x)
102 = 6y (solve for y)
y = 17
102 = x + 17 (sub what you got for y back into original equation + solve)
x = 85
f(x) = 2x; g(x) = 3x^2 + 1
(f x g)(4) is 2x(3x^2 + 1)
2x(3x^2 + 1)
6x^3 + 2x
6(4)^3 + 2(4)
6(64) + 8
384 + 8
392