Answer:
see explanation
Step-by-step explanation:
Given
f(x) = - 2x² + 4x - 2
To find the y- intercept set x = 0
f(0) = 0 + 0 - 2 = - 2 ← y- intercept
The equation of the axis of symmetry is of the form x = c
where c is the value of the x- coordinate the line goes through.
Given the equation in standard form
with a = - 2, b = 4 then the axis of symmetry is
x = - 
= - 
= 1
Equation of axis of symmetry is x = 1
The answer to the question is 21.333 yards
Step 1: divide numerator (5) by the denominator (9): 5 ÷ 9 = 0.5555555555555556
Step 2: add this value to the the integer part: 3 + 0.5555555555555556 = 3.5555555555555554. So,
3 5/9 = 3.5555555555555554
The equation of a line that passes through
and has a slope of m is
so given the point (3,1) and slope -2
(3,1), (x1,y1)
x1=3
y1=1
m=-2
the equation is
Answer:
215; 8; 367
Step-by-step explanation:
231=7x+c
319=18x+c
c=The amount from bake sale (since it doesn't changes throughout the car wash)
x=$ earned per car
319=18x+c
-(231=7x+c)
Use elimination and subtract the values to get rid of a variable.
(319-231, 18x-7x, c-c)
88=11x
x=88/11
x=8
∴ The soccer team earns $8 per car.
231=7*8+c
231=56+c
c=231-56
c=175
∴ The soccer team made $175 from the bake sale.
The ans. is per blank from top ro bottom
1. c+5x=175+5*8
175+40 = 215
2. 255=c+?x
255=175+?*8
255-175=?*8
80=?*8
?=80/8
The soccer team washed 8 cars n earned $255
3. c+24x=175+24*8
175+192= 367
The soccer team earned $367 after 24 cars.
