Answer: the maximal height is 14.75 units of distance.
Step-by-step explanation:
We want to find the maximum height of the function
h(t) = -16*t^2 + 24*t + 5
In order to find the maximum, we need to find the value of t where the derivate of h(t) is equal to zero, then we evaluate our original function in that time.
The derivate of h(t) (or the vertical velocity) is:
h'(t) = 2*(-16)*t + 24 = -32*t + 24
we want to find the value of such:
0 = -32*t +24
32*t = 24
t = 24/32 = 0.75
Now we evaluate our height function in that value.
h(0.75) = -16*0.75^2 + 25*0.75 + 5 = 14.75 units
Answer:
C
Step-by-step explanation:
The percent markup is basically how much it is MORE than the original.
First, we need to find how much the selling price is more than cost.
Cost = 22.99
Selling Price = 36.99
Markup = 36.99 - 22.99 = $14
How much is the markup, we just found, with respect to cost? That is the markup divided by cost, multiplied by 100 [to convert to percentage]. Shown below:

So, the percent markup = 60.9%
Answer choice C is right.
Answer:
hours.
Step-by-step explanation:
We have been given that a chemical spill is leaking into a river flowing 2 3/4 miles per hour.
To find the time taken by chemical to reach the town we will divide distance of town from the spill by distance covered by chemical spill in one hour.

Upon converting our mixed fractions into improper fractions we will get,

Dividing a fraction with another fraction is same as multiplying first fraction by the reciprocal of second fraction.

After cancelling out 4 we will get,



Therefore, it will take the chemicals
hours to reach the town.
Answer:
900.43
Step-by-step explanation:
First find the sales tax
827.98 * 8.75%
827.98*.0875 =72.45 ( rounded to the nearest cent)
Add this to the price of the tv
827.98 +72.45=900.43