Answer:
t = 3 s and t = 4 s
Step-by-step explanation:
Given that,
A projectile is fired straight up from ground level with an initial velocity of 112ft/s. Its height as a function of time t is given by :
We need to find the interval of time during which the projectile’s height exceeds 192 feet. It means put h = 192 feet
So,
The above is a quadratic equation, it can be solved using middle term splitting as follow :
Hence, at t = 3 s and t = 4 s, the projectile’s height exceeds 192 feet above the ground.
Answer:
exactly
Step-by-step explanation:
Answer:
p=4.9
Step-by-step explanation:
The equation is y=2,700x+70,000
the x represents the number of years the 2,700 represents the numbers of people new each year and the 70,000 represents the number of people started with in the town in 2003.
Answer:
1.5 inches/ week
Step-by-step explanation
Given
Height of he plant = 3in
If the plant grows by 2in every week
The rate of change = Height of plant/weekly increase
The rate of change = 3/2 = 1.5 inches/ week