9514 1404 393
Answer:
3 seconds
Step-by-step explanation:
We want to find t when h=0.
0 = 2t² -5t -3 . . . . . . . divide by -8
0 = (2t +1)(t -3) . . . . . . factor
The values of t that satisfy this equation are the values that make the factors zero: t = -1/2, t = 3. The positive value is the one of interest.
It takes 3 seconds for the object to hit the ground.
Answer:
Use the Pythagorean theory equation
Answer:
<u>The correct answer is D. h(x) = 7x – 4x2 – 11x – 17</u>
Step-by-step explanation:
1. Let's review the information given to us to answer the question correctly:
f(x) = 7x – 8x – 2
g(x) = 4x2 + 3x + 15
2. Which of the following answers shows the difference in the amounts of water released, h(x) = f(x) – g(x)?
h(x) = f(x) - g(x)
h(x) = 7x – 8x – 2 - (4x2 + 3x + 15)
h(x) = 7x – 8x – 2 - 4x2 - 3x - 15
h(x) = 7x – 11x – 17 - 4x2
<u>The correct answer is D. h(x) = 7x – 4x2 – 11x – 17</u>