You meant to say x^2 - 49 and the second binomial is x^2 - 16.
x^2 - 49 = (x - 7) (x + 7).
Set each factor to 0 and solve for x individually.
x - 7 = 0
x = 7
x + 7 = 0
x = -7
Do the same for x^2 - 16.
Here is the set up:
x^2 - 16 = (x - 4) (x + 4).
Take it from here.
Answer:
30 minutes to 120 minutes.
Step-by-step explanation:
Answer:
The answer is D.) 27
Step-by-step explanation:
This problem forms a right triangle and with the 90ft wire being the hypotenuse, you subtract 63 from 90 and you get 27.
Hope I helped! :)
When working with functions (of all types), the average rate of change is expressed using function notation:
For the interval from x=7 to x=8,
1. find f(7) and f(8):
2. use given formula:
Answer: the average rate of change for the interval from x=7 to x=8 is 4374.
