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2 years ago

Choose the equation that cannot be used to find the

Mathematics

1 answer:

vekshin12 years ago

6 0

I believe it’s the 3rd option

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Sin(x2 + y2) da r , where r is the region in the first quadrant between the circles with center the origin and radii 2 and 5

sweet [91]

Converting to polar coordinates gives

$\displaystyle\iint_R\sin(x^2+y^2)\,\mathrm dA=\int_{\theta=0}^{\theta=\pi/2}\int_{r=2}^{r=5}\sin(r^2)r\,\mathrm dr\,\mathrm d\theta$
$=\displaystyle\pi\int_{r=2}^{r=5}2r\sin(r^2)\,\mathrm dr$
$=\displaystyle\pi\int_{r^2=4}^{r^2=25}\sin(r^2)\,\mathrm d(r^2)$
$=-\cos(r^2)\bigg|_{r^2=4}^{r^2=25}$
$=\pi(\cos4-\cos25)$

3 0

2 years ago

Who ever helps me gets brainiest

Gemiola [76]

Question 8 measurements. Angle H (acute) Angle M (obtuse) Angle K (acute)

Question 9 measurements. Angle P (right) Angle Q (obtuse) Angle R (acute) Angle S (obtuse) Angle T (right)

6 0

2 years ago

Read 2 more answers

Isabella has a board that is 5.24 feet long and 1.34 feet wide.

Masteriza [31]

Answer:

Length of 1 piece= Length of total divided by 8

Step-by-step explanation:

Length of total= 5.24 feet long

Width of total= 1.34 feet wide

Width is divided by 1 line so, there are 2 parts.

Width= 1.34 divided by 2

Width= 0.67 feet wide

Length is divided by 7 lines, so there are 8 parts.

Length= 5.24 divided by 8

Length=0.655 feet long

They are asking for formula to find the length of each piece

Length of 1 piece= Length of total divided by 8

Hope that helps!

8 0

2 years ago

All of the following are equivalent, except _____.

lianna [129]

Factor x as it is a common factor;
x(8+3)
=11x

4 0

2 years ago

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What was the original price of the tv? Show two methods for finding your answer

dusya [7]

Answer: Any pictures or more information?

Step-by-step explanation: Really happy to help you

6 0

3 years ago