Answer:
Step-by-step explanation:
IT is a rational number because an irrational number cannot be expressed as a fraction.
The time taken by the stone to reach the ground is option A 5.27 seconds.
Given,
The function; y = -16t² + 444
y is the height in feet
t is the time in seconds
A stone from y height is dropped from the edge of a vertical cliff.
We have to find the time taken by the stone to reach the ground;
Here,
y = -16t² + 444
y = 0
Then,
0 = -16t² + 444
16t² = 444
t² = 444/16
t² = 27.75
t = √27.75
t = 5.27 seconds
That is,
The time taken by the stone to reach the ground is option A 5.27 seconds.
Learn more about time taken here;
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line 3
Step-by-step explanation:
Answer:
Step-by-step explanation:
y = -2x + 11