So hmm check the picture below

a)
well, clearly is 80 ft/s
b)
when t = 1? well 80(1)
c)
in the picture, x-axis is the time and y-axis is the height
so, it reaches its maximum at the vertex, after "x" seconds

so it reached the vertex after

d)
the maximum height of the ball is
Answer:
15 square units.
Step-by-step explanation:
To find the area, we must find the width and length of the rectangle. To find the width and length, we need to find the length of AB and the length of BC. We use the distance formula.
AB: A(-8, 3); B(-3, 3).

= 
= 
= 
= 5
BC: B(-3, 3); C(-3, 6).

= 
= 
= 
= 
= 3
Now that we have both the width and the length, we can solve for the area using A = lw, where A is the area, l is the length, and w is the width. In this case, l = 5 and w = 3.
A = lw
A = 5 * 3
A = 15
So, the area of the rectangle is 15 square units.
Hope this helps!
YES!
You know it like this:
if something (x)is 1/10 of a whole(y), then you need 10 of this for the whole (y).
So the whole is then:
y=x*10
if x=40:
y=40*10=400,,
so yes, 40 is 1/10 of 400.
Answer:
Jamie has 11/15 yards of Green Felt more than Blue Felt
Step-by-step explanation:
Green felt- Blue felt
= 5/6- 1/10
= 25/30- 3/30 ( taking LCM)
= 25 - 3/30
=22/30
=11/15 yards
LCM= 2*3*5= 30
Factors of 6= 2*3
Factors of 10= 2*5
Answer:
3
Step-by-step explanation:
a + 3b - 18 has three terms: a, 3b and -18.