Remember, for

the x value of the vertex is

so
given
x value of vertex is -5
and



multiply both sides by a
5=-5a
divvide both sides by -5
-1=a
a=-1

comlete the square
remember if we do

(h,k) is the vertex
I know, we can subsitute the known values of te vertex
-5 for h and 20 for k then expand





a=-1
c=-5
Answer:
A.
Step-by-step explanation:
Answer
Let x = the number of ounces of Solution A
Let y = the number of ounces of Solution B
x + y = 180 y = 180 - x
.60x + .85y = .75(180)
.60x + .85y = 135 Multiply both sides of the equation by 100 to remove the decimal points.
60x + 85y = 13500
60x + 85(180 - x) = 13500
60x + 15300 - 85x = 13500
-25x = -1800
x = 72ounces
y = 180 - 72
y = 108 ounces
Answer:
As per the given statement: when the lights go out at the store at night there's a 15% off sign hanging out by the make up counter.
To find the number as a decimal and a fraction in simplest form.
Given the Number = 15%.
If we convert any number from percent to decimal divide by 100 and remove the % sign.

Then the given number in decimal is, 0.15
Now, to convert this percent into fraction;

Divide both numerator and denominator by 5 to get;

Therefore, the given number in fraction is;
Answer: C
Step-by-step explanation:
Because there are two pairs of opposite parallel sides, it is a parallelogram.
Since the diagonals intersect at a right angle, the parallelogram is also a rhombus.