Answer:
Speed of first plane is 350 miles per hour
Speed of second plane is 100 miles per hour
Step-by-step explanation:
Let the speed of the second plane be X
Then the speed of the first plane will be 3.5 X
Distance travelled by first plane is 9.5 *X
Distance travelled by second plane is 9.5 * 3.5 X
Difference of distance between the two plane is
miles per hour
Speed of first plane is 3.5 *100 = 350 miles per hour
Speed of second plane is 100 miles per hour
This is the concept of applications of polynomial equations. Given that the height of the ball is modeled by the function:
h(t)=16t^2-64t
the maximum height will be calculated as follows;
h(t)=16t(t-4)
therefore:
t=0 or t=4
h(4)=-64(4)+16(4^2)
=0
<h2>Explanation:</h2>
By composing functions, we apply one function to the result of another function. So the definition is as follows:
Therefore, what happens during the process of composing functions is that:
In other words, we send the result of 
through the result of 
Answer:
x≥3
Step-by-step explanation:
7x-28≥-7
Add 28 to each side
7x-28+28≥-7+28
7x≥21
Divide by 7
7x/7≥21/7
x≥3
Answer:
Lindsay bought 3 pants
Step-by-step explanation:
Lindsay went shopping at her favorite store.
She bought
- 4 shirt for $50 each and paid $200 for 4 shirts;
- 2 purses for $30 each and paid $60 for 2 purses;
- x pants for $40 each and paid $40x for x pants.
Thus, her total bill was
If her total bill was $380, then
Lindsay bought 3 pants
