<h3>Answer: Choice C</h3>
Here's how the verification would look like
![\frac{\sin^2x+\cos^2x}{\cos x} = \sec x](https://tex.z-dn.net/?f=%5Cfrac%7B%5Csin%5E2x%2B%5Ccos%5E2x%7D%7B%5Ccos%20x%7D%20%3D%20%5Csec%20x)
using the identity here
![\sec x = \sec x](https://tex.z-dn.net/?f=%5Csec%20x%20%3D%20%20%5Csec%20x)
Group together the like terms (plus 2x with 2x) (subtract 10 by 6)
4x+4=36
Move plus four to the other side as a negative
4x=32
Divide both sides by 4
32 divided by 4 is 8
Therefore, x is equal to 8
Answer:
The answer is 10 minutes.
Step-by-step explanation:
First, convert the known amount of time to a fraction.
6/21 (min over hot dogs).
Set up a proportion.
6/21 = m/35 (m being the number of minutes)
Cross multiply.
210 = 21m
Solve for m. (divide each side by 21)
m = 10
I hope this helps! :)
Total angles on a straight line
(9x + 8) + 37 = 180
9x + 45 = 180
9x = 180 - 45
9x = 135
Divide through by 9
x = 15
YOUR ANSWER IS A
HOPE THIS HELPS