Answer:
40.5
Step-by-step explanation:
Basically use the formula 1//2(base1+base2)*height. So it would be 1/2(4.5+9)*6 which would simplify to 40.5.
To get the constant of proportionality (unit rate) you must find the miles driven in 1 hour. To get this you simply divide 200 by 4...
200÷4=50
So, the constant of proportionality is 50 mph.
Answer:
328
Step-by-step explanation:
Question:
A fastball is hit straight up over home plate. The ball's height, h (in feet), from the ground is modeled by h(t)=-16t^2+80t+5, where t is measured in seconds. Write an equation to determine how long it will take for the ball to reach the ground.
Answer:
Step-by-step explanation:
Given
Required
Find t when the ball hits the ground
This implies that h(t) = 0
So, we have:
Reorder
Using quadratic formula, we have:
Where
So, we have:
This gives:
or
or
or
But time can not be negative.
So, we have:
<em>Hence, time to hit the ground is 5.0625 seconds</em>
Answer:
%
Step-by-step explanation:
<em>First, convert 3 meters into centimeters.</em>
1m = 100cm
3m = 100 × 3 = 300cm
<em>Now, form the fraction by putting the given value, 20cm, over the total measurement, 300cm.</em>
= = ⇒ <em>Simplify your fraction to its simplest terms.</em>
<em>Next, multiply your simplified fraction by 100 to get your percentage.</em>
× = = = % ⇒ <em>Simplify your percentage to its simplest terms.</em>
<em>Hope this helped! I would really appreciate it if you would please mark me brainliest!</em>