so you have a 148+85+85=318, 360-318=42 is the measure of angle T because all four angles together make 360
so,
it equals 12.49 or 12.5 depending on rounding
I hope this helps!
Answer:
HEY BABE
Step-by-step explanation:
First let's find the angles a and b.
We have then:
sin a = 4/5
a = Asin (4/5)
a = 53.13 degrees.
cos b = 5/13
b = Acos5 / 13
b = 67.38 degrees.
We now calculate cos (a + b). To do this, we replace the previously found values:
cos ((53.13) + (67.38)) = - 0.507688738
Answer:
-0.507688738
Note: there is another way to solve the problem using trigonometric identities.
Answer:
b) 
Step-by-step explanation:
b) To find the inverse function, switch the 
and 
variables and solve for :
Verify Answer:
