Answer:
y
=
3
2x
−
5
Step-by-step explanation:
Wherever you see an x, replace it with -2,
So f(-2) = 2(-2^2) -15
= (2x4)-15
= -7
So, these are actually pretty simple once you learn the equality used to solve for "x" and when to implement this method. You can use this equality to solve for a segment "x" anytime that two secant lines cutting through a circle come from the same point outside the circle.
Secant: by geometric definition is just a straight line that cuts a curve into multiple pieces.
I did one of them for you hopefully you can use my work for "a" to help you solve for "b".
For a. I got x=7.
-1/8
1. ) 3/4 becomes 6/8
2. ) -7 + 6 = -1
Answer:
13 ft
Step-by-step explanation:
c^2 = a^2 + b^2
C^2 = 5^2 + 12^2
C^2 = 25 + 144
c^2 = 169
c = 13 ft