2 years ago

Calculate the percentage loss if an item is bought for $400 and sold for $364

Mathematics

1 answer:

daser333 [38]2 years ago

3 0

The answer to the percentage loss of an item would be 91 percent

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Use Green's Theorem to evaluate the line integral. Assume the curve is oriented counterclockwise. Contour integral Subscript Up

Setler79 [48]

By Green's theorem, we have

$\displaystyle\int_C\left(7x+\cos\frac1y\right)\,\mathrm dy-(3y^2+\ln(3x))\,\mathrm dx$

$=\displaystyle\iint_{[1,4]\times[0,3]}\frac{\partial\left(7x+\cos\frac1y\right)}{\partial x}-\frac{\partial(-(3y^2+\ln(3x))}{\partial y}\,\mathrm dx\,\mathrm dy$

$=\displaystyle\int_0^3\int_1^47+6y\,\mathrm dx\,\mathrm dy=\boxed{144}$

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3 years ago

Write this second order differential equation as a first order matrix-vector system of differential equations. Show your work in

Mkey [24]

Answer:

See explaination

Step-by-step explanation:

To convert a second-order differential equation into a system of linear differential equation, we have to write y'' as x', for some variable x.

please kindly see attachment for the step by step solution of the given problem.

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2 years ago

On a test of 76 items, Pedro got 93% correct. (There was partial credit on some items.) How many items did he get correct?

Firlakuza [10]

You would use the “is/of” method.

93 / 100 = x / 76

Cross multiply and divide:

7068 / 100 = 70.68

This means Pedro got around 70 to 71 questions correct and 5 or 6 questions incorrect.

6 0

3 years ago

Solve for x: 10 - 2x = -5x - 5<br> (1) X = -5<br> (3) X= 4<br> (2) x 15<br> (4)x= -15

Alekssandra [29.7K]

10 - 2x = -5x -5
+2x +2x
10 = -3x -5
+5 +5
15= -3x
X= -5

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3 years ago

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The scale of a model train is 1 inch to 13.5 feet. One of the cars of the model trial is 5 inches long. What is the length, in f

garik1379 [7]

If 1 inch is 13.5 feet, then 5 inches = (13.5 * 5) = 67.5 ft

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3 years ago

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