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Elden [556K]
3 years ago
8

Margie threw a ball upwards while standing on a platform 65ft above the ground. The trajectory follows the​ equation:h(t)=-1.5t^

2+42t+65,t seconds . How long will it take for the ball to reach​ its' peak? Round your answer to the nearest tenth. nothing
In the statement "Critical thinking requires reasoned judgments," the word reasoned mean
Mathematics
1 answer:
EastWind [94]3 years ago
7 0

Answer:

  • 14 seconds

Step-by-step explanation:

Given equation is representing the graph of parabola which opens down and its pick is its vertex

<u>The vertex is calculated by vertex formula:</u>

  • x = -b/2a for the equation y = ax² + bx + c

<u>In our case t is the vertex and its value is:</u>

  • t = -42/(-1.5*2) = 42/3 = 14 seconds

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Answer:

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Step-by-step explanation:

To find the average rate of change of a function over a given interval, basically you need to find the slope. The mathematical definition of the slope is very similar to the one we use every day. In mathematics, the slope is the relationship between the vertical and horizontal changes between two points on a surface or a line. In this sense, the slope can be found using the following expression:

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hope that helps</span>
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