4 years ago

................. help plz

Mathematics

1 answer:

Viktor [21]4 years ago

3 0

Answer:

1. y=70x

2. y=105x+3

3. y=45x

4. y=145x

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A projectile is fired from a cliff 200 above the water at an inclination of 45 degree to the horizontal, with a muzzle velocity

iVinArrow [24]

<h2>Horizontal distance when projectile strikes water surface is 170 .02 feet</h2>

Step-by-step explanation:

The height is given by

$h(x)=-\frac{32}{50^2}x^2+x+200$

We need to find when it strikes the water surface,

At water surface h = 0 feet

Substituting

$h(x)=-\frac{32}{50^2}x^2+x+200=0$

Solving this quadratic equation to get x.

-32x² + 2500x + 500000 = 0

32x² - 2500x - 500000 = 0

x = 170 .02 feet or x = -91.90 feet

Negative x is not possible

Horizontal distance when projectile strikes water surface = 170 .02 feet

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3 years ago

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Mnenie [13.5K]

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4 years ago

Find the length of side AC.

Nat2105 [25]

Answer:

Step-by-step explanation:

because its a right angled triangle which should be 90 degrees so 90-45=45 so AC is 45 and AB is 45 so the triangle ACB is 90

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3 years ago

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PLEASE HELP! IT’S 40 POINTS! What is the area of this octagon?

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a book store carries 90 magazines. 90% of the magazines are women's magazines how many men magazines does the bookstore carry?

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Step-by-step explanation:

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