Answer:
Doreen is within the radius of the tower (at the limit).
Step-by-step explanation:
(Assuming that the first 15 miles is East or West)
We can calculate Doreen's distance to the tower using Pythagoras theorem, as these coordinates form a triangle with a 90 degrees angle:
Distance^2 = 15^2 + 8^2
Distance^2 = 225+64
Distance^2 = 289
Distance = 17 miles
Doreen is at 17 miles from the tower, and the tower range is 17 miles, so Doreen is within the radius of the tower (at the limit).
Both are equal y. So you can set them equal to each other
9x+13=2x+48
Subtract 2x from both sides
7x+13=48
Subtract 13 from both sides
7x= 35
X=5
Answer:
x= or 0.5
Step-by-step explanation:
Answer:
Step-by-step explanation:
Given
Required
Find c using Intermediate Value theorem
First, check if the value of M is within the given range:
M is within range.
Solving further:
We have:
Substitute 21 for f(x) in
Express as quadratic function
Expand
or
or
The value of is outside the
So:
By comparison: