Number 4 is C... 21
To complete the question, make the equation 5x + 15 + 3x - 3 = 180 because of supplementery angles.
Just solve for x to get 21.
Number 5 is C... 120
To complete this question, sub 21 in for X in the equation 3x - 3 to get 60. Subtract 60 from 180 to get 120.
For this case we have the following functions:
f (x) = 2x2 - 10
g (x) = x + 9
Evaluating both functions for x = 2 we have:
f (2) = 2 (2) ^ 2 - 10 = 8 - 10 = -2
g (2) = (2) + 9 = 2 + 9 = 11
Then, multiplying both functions we have:
(f ⋅ g) (2) = (-2) (11)
(f ⋅ g) (2) = -22
Answer:
the correct answer below is:
-22
Answer:
Step-by-step explanation:
It is important to remember that, by definition, the measure of an exterior angle of a triangle is equal to the sum of the measures of the two non-adjacent interior angles.
In this case we can idenfity that the angle 
is an exterior angle of the triangle QRT. Then:
Where:
Substituting values and solving for "x", we get:
Then:
The sum of the interior angles of a triangle is 180°, therefore:
Solving for 
, we get:
