During track practice Chris ran 2.5 laps and 81 seconds what is his average time per lap
2 answers:
Answer:
32.4 s
Step-by-step explanation:
We are given that Chris ran=2.5 laps
Time taken by Chris=81 seconds
We have to determine the average time per lap.
In order to find the average time per lap we will divide total time by total number of laps.
Average time=
Average time=
Hence, the average time per lap=32.4 s
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Answer:
Step-by-step explanation:
<em>(17).</em> g(x) = x³ + 4x
f(x) = 4x + 1
( f × g )( x ) = ( x³ + 4x )( 4x + 1 ) = <em>4 </em><em> + x³ + 16x² + 4x</em>
<em>(19).</em> f(t) = 4t - 4
g(t) = t - 2
( 4f + 3g )( t ) = 4(4t - 4) + 3(t - 2) = 16t - 16 + 3t - 6 = <em>19t - 22</em>
<em>(21).</em> h(t) = t + 3
g(t) = 4t + 1
h(t - 2) + g(t - 2) = ( t - 2 ) + 3 + 4( t - 2 ) + 1 = t + 4t - 2 + 3 - 8 + 1 = <em>5t - 6</em>