3 years ago

Find the slope between the given two points (2, 1) and (8, 9)

Mathematics

1 answer:

Juliette [100K]3 years ago

8 0

Answer:

4/3

Step-by-step explanation:

9-1/8-2=

8/6=4/3

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Mandarinka [93]

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need points luvk

Step-by-step explanation:

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3 years ago

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Find the length of l on the curve r(t)=5cos(3t)i-5sin(3t)j+3tk over the interval [3,7]

stealth61 [152]

$\mathbf r(t)=5\cos3t\,\mathbf i-5\sin3t\,\mathbf j+3t\,\mathbf k$
$\mathrm d\mathbf r(t)=\mathbf r'(t)\,\mathrm dt=(-15\sin3t\,\mathbf i-15\cos3t\,\mathbf j+3\,\mathbf k)\,\mathrm dt$

$\displaystyle\int_C\mathrm d\mathbf r(t)=\int_{t=3}^{t=7}\|\mathbf r'(t)\,\mathrm dt\|=\int_{t=3}^{t=7}\sqrt{225\sin^23t+225\cos^23t+9}\,\mathrm dt$
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3 years ago

The length of a rectangle is 3 inches more than twice its width, and its area is 65 square inches. What is the width?

tino4ka555 [31]

That makes no sense, what DO you get?

The correct answer is, A, or question 1, or 2w + 3.

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3 years ago

when a coin is flipped n times,what is the probability that the first head comes after exactly m tails

NeTakaya

Answer:

the probability of flipping n times is 12n, since that's the probability of flipping exactly n−1 tails followed by 1 heads.

Step-by-step explanation:

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3 years ago

If g(x)=70−3x, find -g(-x)

Vedmedyk [2.9K]

Answer:

- g(- x) = - 70 - 3x

Step-by-step explanation:

to evaluate g(- x) substitute x = - x into g(x)

g(- x) = 70 - 3(- x) = 70 + 3x, hence

- g(- x) = - (70 + 3x) = - 70 - 3x

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3 years ago