Answer:
y = x^2 + 8x + 16
y = x + 6
x^2 + 8x + 16 = x + 6
x^2 + 7x + 10= 0
(x + 5)(x+2) = 0
x = -5
x = -2
y = (-5)^2 + 8(-5) + 16
y = 25 - 40 + 16
y = 41 - 40
y = 1
y = -5 + 6= 1
y= (-2)^2 + 8(-2) + 16
y = 4 - 16 + 16 = 4 + 0 = 4
y = -2 + 6 = 4
Point of intersection: (-2, 4)
Step-by-step explanation:
Answer:
=5
Step-by-step explanation:
These are chords of a circle, and the equation to solve for any unknowns is to multiply the 2 sections of one chord and set it equal to the mutiplied 2 sections of the other chord. In our case that will look like this: x * 15 = 6 * 5. That's 15x=30. x = 2
V^2 + 3v - 4 = 0 can be factored: (v+4)(v-1) = 0. Then v = -4 and v = 1.
Answer:$39
Step-by-step explanation:
The discounted price is going to be 60% of the original price because 100 - 40 = 60. So we want to find 60% of the original price, or 65. 65 x . 6 = 39, so the pair of rollerskates will be $39 at the discounted price.