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pashok25 [27]
1 year ago
7

A person standing close to the edge on top of a 72-foot building throws a ball vertically upward. The quadratic function h(t)=−1

6t2+84t+7 models the ball's height about the ground, h(t) , in feet, t seconds after it was thrown.
Mathematics
1 answer:
aleksklad [387]1 year ago
7 0

The quadratic function h(t) = −16t² + 84t + 72, shows that the person throws the ball from on top of a 72 feet building at a velocity of 84 feet/second.

<h3>What is an equation?</h3>

An equation is an expression that shows the relationship between two or more numbers and variables.

The quadratic function h(t) = −16t² + 84t + 72, shows that the person throws the ball from on top of a 72 feet building at a velocity of 84 feet/second.

Find out more on equation at: brainly.com/question/2972832

#SPJ1

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PLEASE HELP ME OUT I NEED IT !!
lisov135 [29]

Answer:

(1/2 ,3) or (0.5, 3) is the same

Step-by-step explanation:

The midpoint between (3,5) and (-2,1) would be:

Apply the formula:

x1+x2 / 2 , y1 + y2 / 2

= 3 + (-2) / 2, 5 + 1 /2

= 1/2, 6/2

= 1/2 ,3 or 0.5, 3 is the same

Hope this helped :3

4 0
3 years ago
Write an equation of the line that passes through the point (3,-2) with slope -2.
Virty [35]

Answer:

y + 4 = -2(x - 3)

Step-by-step explanation:

Use the point-slope formula y - k = m(x - h).  Substitute -2 for k and 3 for h, as well as -2 for m:

y + 4 = -2(x - 3).

4 0
3 years ago
Amanda composed two songs. The longer song is 126 seconds less than twice the length of the short song. The longer song lasts 28
polet [3.4K]
If there are two songs written and the longest one is 126 seconds less than twice the length of the short song, and the longest one lasts 286 seconds, then the shorter song's length can be found using this formula: 
2x-126=286.
This would then turn into x-63=143 to show the time difference. Solving here for x, would be 206 seconds.
4 0
3 years ago
Let f(x)=x²-x-30<br><br> what are the zeros of the function?
tigry1 [53]
<span>x²-x-30=0
factor this equation first

(x-6)(x+5) = 0
x - 6 = 0
x + 5 = 0

x = 6 , x = -5
</span>
6 0
2 years ago
A plane flies over city A and reaches city B in 12 minutes, which is 120 miles away from it. Find the speed of the plane in mile
KonstantinChe [14]
The correct answer for the question that is being presented above is this one: "<span>C. 600 mi./hr. "</span>

Plane flies from City A to City B in 12 minutes. The distance is 120 miles.
12 minutes is just 0.2 of 60 minutes.
= 120 miles / 0.2 hour
= 600 miles / hour
4 0
2 years ago
Read 2 more answers
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