Find the value of x that makes j ll k.
1 answer:
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Greg is driving a remote control car at a constant speed. He starts the timer when the car is 5ft away after 2 seconds the car is 35ft away
Let x be the seconds and y be the feet the car is away
In 0 seconds the car is 5ft away. (0, 5)
In 2 second the car is 35 ft away (2, 35)
Question says constant speed
so we find linear equation y=mx+b
use the points (0,5) and (2,35)
slope
y intercept is 5
so equation becomes y = 15x + 5
to find the distance the car has traveled after 10 secs
We plug in 10 for x and find out y
y = 15(10) + 5= 150+5= 155
the distance the car has traveled after 10 secs is 155 feet
Answer:
see attached
Step-by-step explanation:
A spreadsheet is a useful tool for keeping track of the numbers. A picture of one is attached.
We have assumed that the dollar amount for housing computed in the first part remains the same (though the percentage changes). If that is not the case, you'll have to recompute.
Likewise, we assume that the "5%" retirement amount remains 5% of the nominal salary, rather than 5% of the salary after the mandatory retirement deduction. Similarly, we assume dance lessons remain at their original amount, and were not reduced when the company began taking mandatory retirement.
Feel free to build your own spreadsheet and recompute as needed for any assumptions I got wrong, or for any additional scenarios.
Answer:
Average rate of change for the function over the interval -1<x<1 is -1
Step-by-step explanation:
We need to find average rate of change of f over the interval -1 < x < 1
The function given is:
The formula used to find average rate of change is:
We have, a = -1 and b = 1
Finding f(b) when b=1
Now, finding f(a), when a= -1
Now, putting values and finding average rate of change
So, average rate of change for the function over the interval -1<x<1 is -1