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3 years ago

Factoring polynomials

Mathematics

1 answer:

Anton [14]3 years ago

3 0

That's not a question, so idk what you need me to answer.. sorry

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PLEASE PLEASE HELP WITH RIGHT ANSWERS THANK YOU

Bogdan [553]

Just quit school bro it’s not worth it

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3 years ago

A prism with a volume of 148 cubic cm is dilated by a factor of 5.5.

OLEGan [10]

volume = 148 × 5.5 cube

= 24623.5 cubic cm

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3 years ago

Select each correct answer.<br> 420 +22)<br> o 4 (4+2)<br> o 4 (40+2)<br> 4(4+20)

Vikki [24]

Answer:

sorry i don't know that

Step-by-step explanation:

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3 years ago

Help on math homework

Tasya [4]

I believe these are the answers but I’m not sure about letter A

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3 years ago

A 10 foot ladder is leaning against a wall. Call x the distance from the top of the ladder to the ground, and call y the distanc

liq [111]

$-5.3\:\text{ft/s}$

Step-by-step explanation:

We start by applying the Pythagorean theorem to the ladder, with its length L as the hypotenuse:

$L^2 = 100\:\text{ft}^2 = x^2 + y^2$

where x is the vertical distance from the top of the ladder to the ground and y is the horizontal distance from the bottom of the ladder to the wall. Taking the derivative of the above expression with respect to time, we get

$0 = 2x\dfrac{dx}{dt} + 2y\dfrac{dy}{dt}$

Solving for dx/dt, we get

$\dfrac{dx}{dt} = -\left(\dfrac{y}{x}\right)\dfrac{dy}{dt} = -\left(\dfrac{\sqrt{L^2 - x^2}}{x}\right)\dfrac{dy}{dt}$

We know that

$\dfrac{dy}{dt} = 4\:\text{ft/s}$

when x = 6 ft. So the rate at which the top of the ladder is going down is

$\dfrac{dx}{dt} = -\left(\dfrac{\sqrt{100\:\text{ft}^2 - (6\:\text{ft})^2}}{6\:\text{ft}}\right)(4\:\text{ft/s})$

$\:\:\:\:\:\:\:= -5.3\:\text{ft/s}$

The negative sign means that the distance x is decreasing as y is increasing.

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3 years ago