An acute angle can have all of the following measures except a.89 b.45 c.10 d.0
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Answer:
A parabola opens downward with vertex at (1,20)
Step-by-step explanation:
The function that models the height of bag of candies is
The graph of this function is a parabola that opens downward.
To find the maximum height of the candy bag, we complete the squares to obtain the vertex form of the function.
Factor -16 to get;
Add and subtract the square of half the coefficient of t.
Factor the perfect square trinomial:
The vertex is (1,20)
This means the maximum height after 1 second is 20 feet.
We are given
where
y is the cost in dollars
x is distance in dollars
now, we can find derivative
so,
So,
the rate of change of the cost in dollars with respect to the number of miles is 1.5.........Answer