Answer:
C)
Step-by-step explanation:
Perpendicular means negative reciprocal of the current slope.
And the negative reciprocal of -2 is 1/2.
Step-by-step explanation:
4) y²-1=48
y²=49
y=±7
option C -7 and 7
5) x²=289
x=±17
-17 and 17
Answer:
A.
.
Step-by-step explanation:
We have been given an inequality
. We are asked to solve the given inequality for x.
Using distributive property, we will get:



Subtract 2 from both sides:


Divide both sides by 7:


Therefore, option A is the correct choice.
Only two of them are the correct answers to this question.