Remember that

Thus, we can solve for x.
x + 22 = 90 - (2x - 7)
x + 22 = 97 - 2x
3x + 22 = 97
3x = 75
x = 25
8x^2+10x-18
The explanation is in the picture below if needed
Answer:
b. -36/77
Step-by-step explanation:
As 0 < x <
/2 => tan x > 0
As 0< y <
/2 => tan y > 0
We have the formula:
As tan x = 1/(cotx) => 
As tan x > 0 => tan x = 8/15
As tan y > 0 => tan y = 4/3
As tan (x-y)=
Answer:
55° 16' 30" = 0.9648 radians .
Step-by-step explanation:
Step-by-step explanation:
a÷b=960÷89=10.78651685=10.79 or 17.8