3 years ago

Calculate. 5 10 2 x 104 Write your answer in scientific notation.

Mathematics

1 answer:

JulijaS [17]3 years ago

4 0

Answer: hello my name is bicktoria and im 5

Step-by-step explanation:

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Find the length of side x in simplest radical form with a rational denominator.

Hitman42 [59]

Answer:

$x =\sqrt 2$

Step-by-step explanation:

Given is a 30° - 60° - 90° triangle.

side x lie opposite to 30° angle

$\implies x = \frac{1}{2}\times \sqrt 8$

$\implies x = \frac{1}{2}\times 2\sqrt 2$

$\implies x =\sqrt 2$

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2 years ago

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3 years ago

Evaluate the given integral by changing to polar coordinates. sin(x2 + y2) dA R , where R is the region in the first quadrant be

koban [17]

Set

$\begin{cases}x=r\cos\theta\\y=r\sin\theta\end{cases}\implies\mathrm dA=r\,\mathrm dr\,\mathrm d\theta$

The region $R$ is given in polar coordinates by the set

$R=\left\{(r,\theta)\mid2\le r\le3,0\le\theta\le\dfrac\pi2\right\}$

So we have

$\displaystyle\iint_R\sin(x^2+y^2)\,\mathrm dA=\int_0^{\pi/2}\int_2^3r\sin(r^2)\,\mathrm dr\,\mathrm d\theta=\boxed{\frac\pi4(\cos4-\cos9)}$

8 0

3 years ago

Hey what's<br><br><img src="https://tex.z-dn.net/?f=4%20%7B%7D%5E%7B3%7D%20" id="TexFormula1" title="4 {}^{3} " alt="4 {}^{3} "

Nat2105 [25]

Answer:

Step-by-step explanation:

4×16

64 sorryyy but I think this is it

7 0

3 years ago

Read 2 more answers

Could anybody help me (pic attached)

RideAnS [48]

Answer: 4/3

Step-by-step explanation:

What are the corresponding sides?

4 and 3

8 and 6

9 and 6.75

This is very easy, just make a fraction

4/3 = 4/3

8/6 = 4/3

9/6.75 = 4/3

Hence the answer is 4/3

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3 years ago