18) If f(x) = a3x + 4x^9 +10 then dy/dx is
b) 3a^3x loga +36x
a) a3x +36x° +10x
c) 3a3x loga +36x8 +10x
d) None
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Answer:
SSolution: Average speed is vaverage =
distance travelled
time taken
So, the average speed from t = 0.25s to t = 1s is:
h(1) − h(0.25)
1 − 0.25
=
(10 × 1 − 5 × 12) − (10 × 0.25 − 5 × 0.252)
1 − 0.25
=
5 − 2.1875
0.75
= 3.75m s−1tep-by-step explanation:
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