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kari74 [83]
3 years ago
6

PLEASE HELP simplify the expression 2. 10r^(-7)t^3

Mathematics
1 answer:
Alina [70]3 years ago
4 0
<span>10r^(-7)t^3
= 10t^3 / r^7

hope it helps</span>
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A car travelled a distance of D =320 kilometers for T =5.0 hours at a constant rate use the formula D =R. T To find the speed (R
motikmotik

The speed of car is 64 kilometer per hour

<em><u>Solution:</u></em>

Given that car travelled a distance of D = 320 km for T = 5.0 hours

To find: speed (R) of the car in km per hour

<em><u>Formula given:</u></em>

D = R. T

where "D" is the distance

"R" is the speed of car

"T" is the time taken

<em><u>Substituting the given values in above formula we get,</u></em>

320 = R \times 5.0\\\\R = \frac{320}{5}\\\\R = 64

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