Answer:
t = 5.25 seconds
Step-by-step explanation:
Given that,
A projectile with an initial velocity of 48 feet per second is launched from a building 190 feet tall. The path of the projectile is modeled using the equation:
It is assumed to find the time when the projectile will hit the ground. When the projectile hit the ground, its height is equal to 0 such that,
It forms a quadratic equation such that,
So, the projectile will hit the ground at t = 5.25 seconds.
Find the circumference of the whole circle,divide by 4,and then add the radius twice.
The given compound inequality is
First we solve the first inequality,
Now we solve the second inequality
So we have
So the required solution is
![( - \infty,-5] \ or \ (0, \infty)](https://tex.z-dn.net/?f=%20%28%20-%20%5Cinfty%2C-5%5D%20%5C%20or%20%5C%20%280%2C%20%5Cinfty%29%20)
Correct option is A .
Answer:
d=4.5t
Step-by-step explanation:
in two hours, Francine went 9 miles
9/2=4.5
the distance equals 4.5 times each cycling time.
d=4.5t
Add all the times together:
10 + 25 + 15 = 50 minutes total.
For the ratio divide the time for weights by total time:
25/50 which reduces to 1/2
The ratio is 1/2
