Answer: C. 
Step-by-step explanation:
1. You have the following equation of the parabola in Vertex form:

Where h is the x-coordinate of the vextex and k is the y-coordinate of the vextex.
2. You know that the vertex of this parabola is at (-2, 5), then, susbtitute this point into the equation. Then, you obtain:

3. Therefore, the answer is the option C.
Answer:
6 + (15) : 3 x (2) = 6 + 5 x 2 = 16
Step-by-step explanation:
sixteen with Jaywhyypeeeee
<span>Adding the miles she has already ran and then subtracting that total from the 26 miles needed to the finish line tells you that Cindy would need to run eight more miles to complete the 26 mile marathon.</span>
Answer:
The dimensions are 10 2/3 feet by 5 1/3 feet (Ten and two-thirds and five and one third).
Step-by-step explanation:
This is our system of equations:
y=Length
x=Width
y=2x
2x+2y=32
We can substitute the y value in the second equation by plugging in the first equation:
2x+2(2x)=32
2x+4x=32
6x=32
x=16/3 or 5 1/3
We can plug in this x value into the first equation to find the y value:
y=2(16/3)
y=32/3 or 10 2/3
Answer:
25 black keys
Step-by-step explanation:
Let the number of requires black keys = 'x'
White key : Black keys = 7 : 5
7 : 5 :: 35 : x
Product of extremes = product of means
7 *x = 35 * 5
x = 
x = 5 *5
x = 25