F(x) = -2x² + 20x - 42
This is a quadratic expression.
For a general expression ax² + bx + c, the axis of symmetry x = -b/2a
Comparing -2x² + 20x - 42 to ax² + bx + c, a = -2, b = 20, c= -42
Axis of symmetry, x = -b/2a
x = -20 / (2 * -2) = -20/-4 = 5
Therefore axis of symmetry is x = 5.
1 vinegar to 1/2 of oil is equivalent to 2 parts of vinegar to 1 part of oil
equation is y = 2x
the second option is the correct one.
Answer:
u=2 root 2
Step-by-step explanation:
All 45 45 90 degree triangles follow the same pattern
540 in^2 = (30 in)*(x in)
(540 in^2)/(30 in) = x in
18 in = x in
The height is 18 in.
Answer:
$2300
Step-by-step explanation:
The commission earned by the representative is ...
commission = 0.02 × $15,000 = $300
so the total to be paid to the sales representative is ...
salary + commission
= $2000 +300 = $2300
