A van travels at a constant speed of 15m/s for 60 seconds. for 30 seconds. a. show this on a graph. Put time on the horizontal axis and speed on the vertical axis.
b. The speed of a car increases steadily from 0 m/s to 30 m/s over 20 seconds. It travels at 30m/s for 30 seconds. Then the speed steadily decreases from 30 m/s to 0 m/s in 10 seconds. show the speed of the car on the same graph.
c. For how many seconds is the car travelling faster than the van

21

step-by-step explanation:

11279

i think it is 70

step-by-step explanation:

i think it is 18

step-by-step explanation:

answer: solve 5\cdot 2^x=2405⋅2  

x

=2405, dot, 2, start superscript, x, end superscript, equals, 240.

solution

to solve for xxx, we must first isolate the exponential part. to do this, divide both sides by 555 as shown below. we do not multiply the 555 and the 222 as this goes against the order of operations!

\begin{aligned} 5\cdot 2^x& =240 2^x& =48 \\ \end{aligned}  

5⋅2  

x

2  

x

​    

=240

=48

​

step-by-step explanation: