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Assoli18 [71]
3 years ago
13

PLS HELP DUE IN AN HOUR!

Mathematics
1 answer:
Flauer [41]3 years ago
8 0

answer is attached with solution

answer is 5/17

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Step-by-step explanation:

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An electric guitar is on sale at 40% off. if the sale price is 179.94 ,what is the original.
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Let x = original price
Knowing that multiplying the original price and the discount is the discount price. We formulate:
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3 years ago
A ball is thrown at an initial height of 7 feet with an initial upward velocity at 27 ft/s. The balls height h (in feet) after t
lianna [129]

Answer:

The height of ball is 17 ft at t=0.55 and t=1.14.

Step-by-step explanation:

The general projectile motion is defined as

y=-16t^2+vt+y_0

Where, v is initial velocity and y₀ is initial height.

It is given that the initial height is 7 and the initial upward velocity is 27.

Substitute v=27 and y₀=7 in the above equation to find the model for height of the ball.

h(t)=-16t^2+27t+7

The height of ball is 17 ft. Put h(t)=17.

17=-16t^2+27t+7

0=-16t^2+27t-10

On solving this equation using graphing calculator we get

t=0.549,1.139

t\approx 0.55,1.14

Therefore the height of ball is 17 ft at t=0.55 and t=1.14.

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Answer:

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Step-by-step explanation:

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