Molly and Ryan both need to answer this question on their test in math class. 34×45=? They both got 12/20 as their answer but do
1 answer:
You might be interested in
Answer:
The time taken for the flare to hit the ground is approximately 10.7 seconds.
Step-by-step explanation:
Given : Suppose a flare is shot from the top of a 120 foot building at a speed of 160 feet per second. The equation models the h height at t seconds of the flare.
To find : How long will it take for the flare to hit the ground?
Solution :
The equation models the h height at t seconds of the flare.
The flare to hit the ground when h=0.
Substitute in the equation,
Applying quadratic formula,
Where, a=-16, b=160 and c=120
Reject the negative value.
Therefore, the time taken for the flare to hit the ground is approximately 10.7 seconds.
Answer:
Step-by-step explanation:
Given equation is
We need to find the value of
Distribute in the right-hand side
Add both sides
Now, add both sides
Divide both sides by
So,