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hichkok12 [17]
3 years ago
6

Explain in words how to graph the line from the equation.

Mathematics
1 answer:
Misha Larkins [42]3 years ago
6 0

Answer:

you would find the y intercept and plot the y intercept first than find the slope and draw a line with the slope

Step-by-step explanation:

it depends on the equation, but this is the answer for a equation that is a line

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13.5x=81 solve for x
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Divide 13.5 to both sides and it gives u 6
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Susan bought 12 ounces of candy. How many grams did she buy? show your work (please!)
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40. A car stereo originally cost $268. It is now being sold for 85% of its original price. How much does
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Answer:

The stereo is now being sold for $227.80.

Step-by-step explanation:

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The region in the first quadrant bounded by the x-axis, the line x = ln(π), and the curve y = sin(e^x) is rotated about the x-ax
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First, it would be good to know that the area bounded by the curve and the x-axis is convergent to begin with.

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\displaystyle\int_{u=0}^{u=\pi}\frac{\sin u}u\,\mathrm du

The integrand is continuous everywhere except u=0, but that's okay because we have \lim\limits_{u\to0^+}\frac{\sin u}u=1. This means the integral is convergent - great! (Moreover, there's a special function designed to handle this sort of integral, aptly named the "sine integral function".)

Now, to compute the volume. Via the disk method, we have a volume given by the integral

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By the same substitution as before, we can write this as

\displaystyle\pi\int_0^\pi\frac{\sin^2u}u\,\mathrm du

The half-angle identity for sine allows us to rewrite as

\displaystyle\pi\int_0^\pi\frac{1-\cos2u}{2u}\,\mathrm du

and replacing v=2u, \dfrac{\mathrm dv}2=\mathrm du, we have

\displaystyle\frac\pi2\int_0^{2\pi}\frac{1-\cos v}v\,\mathrm dv

Like the previous, this require a special function in order to express it in a closed form. You would find that its value is

\dfrac\pi2(\gamma-\mbox{Ci}(2\pi)+\ln(2\pi))

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5 0
4 years ago
A swimming pool has to be drained for maintenance. The pool is shaped like a cylinder with a diameter of 5 m and a depth of 1.4
Korolek [52]

Answer:

8 hours

Step-by-step explanation:

basic equation

Q (flow rate) = V (volume)/ t (time)

so to find the time we just rearrange the equation and become

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V = 109.9 m³

if the Q is 13 m³/hour then

t = 109.9/13 = 8.453 hours

round to nearest hour = 8 hours

6 0
3 years ago
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