Step-by-step explanation:
complementary angles means that both of them together = 90
13y +12 + 20y + 12 = 90
add all y together and numbers together
33y + 24 = 90
solve for y
33y= 66. y= 2
now let's get the measurements of the angles
13(2) + 12= 38
20(2) + 12= 52
180 - 47 = 133
The answer is the second option, 133 degrees
Answer:
Step-by-step explanation: 58 - 3 = 55.
Answer:
9<(5+7). the answer is 12
Step-by-step explanation:
hope it helps : )