A. When the key reaches the ground, h = 0.
0 = -16t^2 + 64
16t^2 = 64
t^2 = 4
t = 2 seconds.
B. The reasonable domain of the function is [0, 2], since the function does not hold when the key reaches the ground. The range of the function is [0, 64] which corresponds to the domain.
Answer:
(n + 1)(3n + 7)
Step-by-step explanation:
3n² + 10n + 7
Consider the factors of the product of the n² term and the constant term which sum to give the coefficient of the n- term.
product = 3 × 7 = 21 and sum = + 10
The factors are + 3 and + 7
Use these factors to split the n- term
3n² + 3n + 7n + 7 ( factor the first/second and third/fourth terms )
3n(n + 1) + 7(n + 1) ← factor out (n + 1) from each term
= (n + 1)(3n + 7) ← in factored form
Step-by-step explanation:
Multyply 5/3 to 3/5. these cancel them out. Do the same to the other side (23/5)5/3
When you find the answer to (23/5)5/3,
It will be h=(that answer)
Please make this the brainlyest!
See attachment for your your Answer
Answer:
No,
(2x - 2)
(6x² - 8x + 2)
Step-by-step explanation:
Product of:
(2x - 2) and (3x - 1)
= 6x² - 6x - 2x + 2
= 6x² - 8x + 2
This is not (3x² + 3x - 4)