Answer:
2 hours and 15 minutes
Step-by-step explanation:
Answer:

Step-by-step explanation:
We want to find an equation of a line that's perpendicular to x=1 that also passes through the point (8,-9).
Note that x=1 is a <em>vertical line </em>since x is 1 no matter what y is.
This means that if our new line is perpendicular to the old, then it must be a <em>horizontal line</em>.
So, since we have a horizontal line, then our equation must be our y-value of our point.
Our y-coordinate of our point (8,-9) is -9.
Therefore, our equation is:

And this is in standard form.
And we're done!
Answer:
Degree of elevation
Step-by-step explanation:
It tells you the climb at a specific angle. For instance, if you climb 5 feet per every 1 foot of travel, you can create a triangle that has two legs and a hypotenuse. You can then use trigonometric functions to come at the conclusion that the degree of inclination is 78 degrees.
5. The answer is D

because it says no more than 160 so it's possible to be equal to 160.
6.

So the answer is A
Answer:
m^2+4m-21
Step-by-step explanation:
(m-3)(m+7)
m^2-3m+7m-21
m^2+4m-21