Answer:
3.14 square units
Step-by-step explanation:
Circumference of a circle = 2πr
2πr = 6.28
r = 6.28/2π
r = 3.142/π
Area of a circle = πr^2
slot in the value of r
Area of the circle = π( 3.142/π)^2
" = π(9.87/ π^2)
" = 9.87/π
π = 3.14
Area of a circle = 9.867/ (3.14)
" = 3.14 square units
<h3><u>Question:</u></h3>
The formula h = 120t-16t^2 gives the height h in feet of an object t seconds after it is shot upward from Earth's surface with an initial velocity of 120 feet per second. What will the height of the object be after 6 seconds?
<h3><u>Answer:</u></h3>
The height of object after 6 seconds is 144 feet
<h3><u>Solution:</u></h3>
<em><u>The formula that gives the height of an object is:</u></em>

Where,
h is the height in feet and t is the time in seconds
To find: height of the object be after 6 seconds
To find the height of the object be after 6 seconds, substitute t = 6

Thus height of object after 6 seconds is 144 feet
Answer:

Step-by-step explanation:
The given line passes through (0,8) and (8,0).
The slope of this line is
.
The point-slope form is given by:

We substitute the slope and the point (8,0) to get:

We substitute the slope and the point (0,8) to get:

Answer:
t=1
Step-by-step explanation:
First we distribute
[3(2-t)]/4=3t/4
(6-3t)/4=3t/4
Then we multiply both sides by 4 to cancel out the denominator
6-3t=3t
Add 3t to both sides
6t=6
Divide both sides by 6
t=1