Answer:
h(t) = -16t2 + 186t + 43
at the ground h = 0
hence; -16t2 + 186t + 43 = 0
solving this quadratic equation using the quadratic formula ; a = -16, b = 186, c = 43 ; x = (-b +-(b2 - 4ac)1/2)/2a
gives t = 11.8 seconds to the nearest tenth (note that the negative root has no practical significance)
Step-by-step explanation:
Given:
The functions are:


To find:
The function
.
Solution:
We have,


We know that,

On substituting the values of given functions, we get



Therefore, the required function is
.
Answer:
<u>15%</u>
Step-by-step explanation:
The reason for this is simply because if you take 40 and 6, turn it into a fraction, then turn it into a percentage, it turns out to be 15%
92 can be rounded to 90
68 can be rounded to 70
90 x 70 = 6300