Answer:
1.57
Step-by-step explanation:
9/2 miles is the same thing as saying 9 and a half so all you need to do is 15/ 9.5 = so that is 1. 57
2x + (x + 5) = 30
3x + 5 = 30
3x = 30 - 5
3x = 25
x = 25/3
Answer:
D) -122
Step-by-step explanation:
Given:

We need to find f(-4).
Now by substituting the value of x =-4 in above equation we get;

By using PEDMAS we will solve for exponential function first we get;
Now we know that 
So we get;

Now using PEDMAS we will solve division.

Now using PEDMAS we solve multiplication.

Finally by subtraction we get;

For 7=s-9 you add 9 to both sides and the answer will be s=16.
Answer: A. - 1/a
Step-by-step explanation:
Two lines are said to be perpendicular if the product of their slope equals -1 . That is , if the slope of the first line is
and the slope of the second line is
, if they are perpendicular , then :
x
= -1.
Therefore : the perpendicular slope to m is 