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The velocity when the object falls from 84 feet is 73.32 ft/sec
Step-by-step explanation:
The formula is derived from the conversion of energy principle. As the object falls the potential energy changes into kinetic energy. The right formula is:
here,
v represents the velocity
and
h represents the height in feet.
We can plug in the value of height in the formula to get the value of velocity
So, Putting h=84
Rounding off to nearest 100th
v=73.32 ft/sec
The velocity when the object falls from 84 feet is 73.32 ft/sec
Keywords: Velocity, Height
Learn more about velocity at:
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Answer:
See attached
Step-by-step explanation:
Given function:
- y = -2x² + 5x + 8
Table and graph are attached
Zeros are included in the graph
<u>Zero's are obtained:</u>
x = 0 ⇒ y = 8
y = 0 ⇒ Solving quadratic equation
- -2x² + 5x + 8 = 0
- x = (-5 ± √(25 + 2*4*8))/-4
- x = 3.608
- x = -1.108
So zeros are (0, 8), (3.608, 0) and (-1.108, 0)
Answer:
3312 square yards.
Step-by-step explanation:
Given:
The sports field at Patton Elementary School is shaped like a rectangle having:
Length = 72 yards
Breadth = 46 yards
Question asked:
What is the area of the field in square yard ?
Solution:
As here sports field at Patton Elementary School is shaped like a rectangle, thus we will use the formula ;
Thus, the area of the sports field at Patton Elementary School is 3312 square yards.