Answer:
Yes, she is correct.
Step-by-step explanation:
y = kx is direct variation
15 = k*-3
k = -5.
So the equation of variation is
y = -5x
When x = -4:
y -5*-4 = 20.
Tan46=x/12
12×tan 46=x
12×1.03=x
0.21255=x
Your x-intercept is at (-2,0) and your y intercept at (0,-3), so it's D
Answer:
a square backyard with width (x - 9)
Step-by-step explanation:
x²−18x + 81 = x² - (2 x 9) x + 9² = (x - 9)²
width = area / length = (x - 9)² / (x - 9) = x - 9
Length = width
This is a square backyard
Answer:-21
Step-by-step explanation:
3•(-7)
3 x -7=-21
