<span>a. y = x^2 – 81 is a quadratic function.
According to the definition:
A quadratic function is defined as a function with the maximum coefficient of 2.Only first option has a coefficient of 2 and the rest have not.</span>
F(x) = -2(x - 3)² + 2
f(x) = -2(x - 3)(x - 3) + 2
f(x) = -2[x(x - 3) - 3(x - 3)] + 2
f(x) = -2[x(x) - x(3) - 3(x) - 3(-3)] + 2
f(x) = -2(x² - 3x - 3x + 9) + 2
f(x) = -2(x² - 6x + 9) + 2
f(x) = -2(x²) - 2(-6x) - 2(9) + 2
f(x) = -2x² + 12x - 18 + 2
f(x) = -2x² + 12x - 16
Answer:
60 days
Step-by-step explanation:
Let's call h the daily dose of medication that a diabetic person should administer.
We know that:
h = 0.0005 L/day
We know that 0.03 liters is what the social institution provides.
Then we can raise the following equation:
hx = 0.03
Where x is the number of days
So:
x = 60 days.
After 60 days you will have to return for more doses
Answer:
(a) The minimum Edward would have to spend is $31.24
(b) The maximum Edward could spend is $33.34
Step-by-step explanation:
(a) Edward would spend a minimum of $31.24 if he gets either 10 zinnias, 8 pansies and 8 marigolds or 10 marigolds, 8 pansies and 8 zinnias.
(b) Edward could spend a maximum of $33.34 if he gets 10 pansies, 8 zinnias and 8 marigolds.
Answer:
A and E, The first and the last
