Answer:
It's 0 I think I'm not sure (I'm sure it's 0 but That's what I always say to humble myself so)
Step-by-step explanation:
For this case we have:
By trigonometric property we have:

Where:

Substituting:

Clearing x we have:

Thus, the equation is: 
Answer:

Answer:
x = 10
Step-by-step explanation:
If f(x) equals 3x-7 and also equals 23, then you can set 3x-7 equal to 23
3x - 7 = 23
3x = 30
x = 10
I only know how to do a, so i hope i can help a little bit.
y=mx+b
-2=-3(7)+b
-2=-21+b
b=19
so your equation is y=-3x+19
i hope this helps!!
Answer:
14 students
Step-by-step explanation:
We can set up a percentage proportion to find 2% of 700.
, and we can use the cross products property to find the value of x.

Hope this helped!