When the firecracker hits the ground, H(t) = 0.0 = -16t^2 + 90t + 160 Using the quadratic formula,t = (-90 +- sqrt(90^2 - 4(-16)(160))) / 2(-16)t = -1.42 ort = 7.04
The negative time is extraneous. Therefore,t = 7.04 s.
Seven Seconds is your answer!
<span>The total cost for Glenn Andrews is the value of the motorbike plus the sales tax. The sales tax is found multiplying the value times the percent sales tax rate, divided by 100. This is, tax sales = $3950 * 6% = $ 3950 * 6 /100 = 237. And the total cost was $ 3950 + $237 = $4187.</span>
Answer:
A
Step-by-step explanation:
Given
9 > - 2m + 2 - 3, that is
9 > - 2m - 1 ( add 1 to both sides )
10 > - 2m
Divide both sides by - 2, reversing the symbol as a result if dividing by a negative quantity.
- 5 < m , thus
m > - 5 → A
