6. C. 748h = 1,500, because 34 x 22 = 748 x height 'h'
7. B. 59 + x, because sum means add
-25 is less than 16 because it’s a negative number
Answer:
y = (x - 3)² + 6
Step-by-step explanation:
the equation of a parabola in vertex form is
y = a(x - h)² + k
where (h, k ) are the coordinates of the vertex and a is a multiplier
Using the method of completing the square
y = x² - 6x + 15
add/subtract ( half the coefficient of the x- term )² to x² - 6x
y = x² + 2(- 3)x + 9 - 9 + 15
y = (x - 3)² - 9 + 15
y = (x - 3)² + 6 ← in vertex form
Answer:
2.5 hours after you start
Step-by-step explanation:
You are driving 14 mph faster than your friend, so will make up the 35 mile head start in 35/14 = 2.5 hours. You will meet 162.5 miles from your starting location. If that is Philadelphia, you will have 37.5 miles to go.
You will catch up after 2.5 hours of driving.
_____
You will arrive about 9 1/2 minutes ahead of your friend.
