Answer:
m∡2 = 90°
Step-by-step explanation:
diagonals of a rhombus are perpendicular
Answer:
A
Step-by-step explanation:
Given
x² + 6x
To complete the square
add ( half the coefficient of the x- term )² to x² + 6x
x² + 6x + (3)²
= x² + 6x + 9
= (x + 3)²
Minus 5 from both sides so we have 3a=-19 now divide both sides by 3 so we have a=-6 1/3
Answer:
-4
Step-by-step explanation:
plug in -2
-(-2)^2 = -4
Answer:C
Step-by-step explanation:45
