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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

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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