Answer:
78
Step-by-step explanation:
6(2x² - 5) = [?] if x = -3
6(2(-3)² - 5)
6(2(9) - 5)
6(18 - 5)
6(13) = 78
B is the correct answer because in order to form a triangle the sum of each two sides must be greater than the third side
Answer:
C. 44 °
Step-by-step explanation:
Angles on a straight line add up to 180 degrees.
180 - 88 = 92
Angles in a triangle add up to 180 degrees.
y + y + 92 = 180
y + y = 88
2y = 88
y = 88/2
y = 44
Postulates cannot be proven. They are assumptions that are made. There is no proof for a postulate. Postulates are used without proof.
I need to know x is exactly