Answer:
a) a + c = 90
d) a + b + c + 30 = 180
e) The angles marked a and b are vertical
f) The angles marked a and c are complementary.
Step-by-step explanation:
A complementary angle is and angle that has a sum of 90 degrees. A vertical angle is 2 angles facing each other, that are completely identical. 180 degrees is the sum of a strait line. 90 degrees is a right angle.
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<em>-kiniwih426</em>
Answer:
69.08
Step-by-step explanation:
round from 69.115
Answer:
91 divided by 14 = 6.5 is the length
Step-by-step explanation:
Whenever given an area and 1 given length always divide the area by the length to find the missing length.
9514 1404 393
Answer:
-14
Step-by-step explanation:

Answer:
b = -12
Step-by-step explanation:
The axis of symmetry goes through the point that represents the x value of the vertex when you complete the square.
y = (x - 6)^2 + 10 + c
y = x^2 - 12x + 36 + 10 - 36
y = (x^2 - 12x + 36) - 26
y = (x - 6)^2 - 26