The equation represents height as a function of time.
The bullet was in the air for 75 seconds.
The equation is given as:

The time spent in the air is the time it takes the bullet to land on the ground.
When the bullet is on the ground, the height is:

So, we have:


Factor out t

Split
or 
represents when the shot is fired.
So, we solve for t in 
Collect like terms

Divide both sides by 16

Hence, the bullet was in the air for 75 seconds
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The Reference angle for 302 degree is 58 degree.
<h3 /><h3>What is Reference Angle?</h3>
The acute angle formed by the terminal arm or terminal side and the x-axis is known as the reference angle.
There is always a positive reference angle.
The reference angle is, in other words, the angle formed by the terminal side and the x-axis.
Reference angle is given by
Ф = 360° - Given angle
Ф = 360° - 302°
Ф = 58°
Option A is right answer.
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Two acute angles is the least amount.
Answer: 17.928666
Step-by-step explanation:
75 time because the proabablity of rolling any number each time is 1/10 so 250/10=25 the mutiples of 3 in 1-10 are 3,6,9 so 3*25 =75 tmes