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geniusboy [140]
3 years ago
5

Please help me!!!!!!!!!!

Mathematics
2 answers:
erma4kov [3.2K]3 years ago
8 0
He did the end of step 3 wrong. When you divide a positive number by a negative number. it becomes negative. so the answer is -2
alina1380 [7]3 years ago
8 0

Answer:

Last 1 is wrong

Step-by-step explanation:

The last step is wrong because it's suppose to be -2 not positive 2. A negative divided by a positive becomes a negative. So it's suppose to be x = -2 NOT x = 2.


Hope this helps you!!! :)

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What value of x makes this equation true? x/3 −6=10
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Answer:

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x/3 - 6 = 10

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x/3=16

16*3=48

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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

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Solving for dx/dt, we get

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

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

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5 0
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