Answer:
f(x) = - 4x² + 24x - 20
Step-by-step explanation:
Given
f(x) = - 4(x - 3)² + 16 ← expand the factor using FOIL
= - 4(x² - 6x + 9) + 16 ← distribute parenthesis by - 4
= - 4x² + 24x - 36 + 16 ← collect like terms
= - 4x² + 24x - 20
Answer:
The x-intercept is 4
Step-by-step explanation:
We are given;
The slope of a line as -3/4
y-intercept is 3
We are supposed to determine the x-intercept;
We need to know that;
The slope of a line is given by the ratio of the change in y to the change in x
The coordinates of y-intercept are (0, 3)
Taking the x-intercept as a, then the coordinates of x-intercept is (a, 0)
But;
slope = Δ in y ÷ Δ in x
Therefore;

Solving for a

Therefore, the x-intercept is 4
After multiplication, the equation would be :
6x2 + 10x2 - 14x - 15x2 - 25x + 35
= x2 - 29x + 35
Answer:
7.64 miles/week
Step-by-step explanation:
there are 5280 feet in a mile
and 10080 minutes in a week
so it's
4 * 10080 / 5280
the two big numbers where just gougled