Answer:
The perimeter is 22.
Step-by-step explanation:
If you turn this shape into a rectangle, the perimeter doesn't change.
The width is given, it is 7.5. The height is BC+DE = 3.5
Then the perimeter is twice the width plus twice the height:
7.5*2 + 3.5*2 = 15+7 = 22
Answer:
Step-by-step explanation:
Key to this method is remembering that

So, if you divide the coefficient of x by 2 and square it, that will complete the square. With that in mind, things are easy.
6/2 = 3, so add 

So, c=9
Similarly, for the other two,

You don't really have to worry about the sign, since squaring will always make it positive

I think Jessie is correct because if u mutipy those two numbers so therefore Jessie is correct if you need me to explain more plz let me knoe
The average acceleration of an object is calculated as the final speed minus the initial speed divided by the elapsed time.
So:

Where
= final speed
= initial speed
= elapsed time.
Thus:
The acceleration of the cyclist is:

a = 2.667
The acceleration of the car is:

a = 3.75 
The average acceleration of the car is higher than the average acceleration of the cyclist.
After simplifying, that answer would be -65