Answer:
3(x + 2)
Step-by-step explanation:

Answer:
The answer to your question is x = 52° and y = 137°
Step-by-step explanation:
Process
1.- Find the value of x using the large right triangle, remember that the sum of the internal angles in a triangle equals 180°.
x + 38 + 90 = 180
x = 180 - 90 - 38
x = 52°
2.- To find y, we notice that x and y -9 are supplementary angles so their sum gives 180°.
x + y - 9 = 180
Substitution
52 + y - 9 = 180
y = 180 + 9 - 52
y = 137°
Answer:

Step-by-step explanation:
Using the rule of exponents
=
, then
=
= 
Answer:
12 cm
Step-by-step explanation:
12x15 (150)
2160/180
= 12 cm