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3 years ago

Perform the experiment by spinning the spinner 7

Mathematics

2 answers:

castortr0y [4]3 years ago

6 0

Answer:

0.3

Step-by-step explanation:

disa [49]3 years ago

3 0

Step-by-step explanation:

Probability event = number of times the event occurs divided by the number of trials occur.

When you apply this then you find the experimental probability as it means the amount of probability that is based on repeated trials.

So as shown we number of events/ number of trials. f the colour is blue x 2 then 2/7 is the answer.

Frequency means the amount of times the event occured.

Relative frequency means estimating the amount after finding the probability.

Read this https://msabadie.weebly.com/uploads/2/3/3/4/23343656/chapter_10.pdf

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Please help!!!!!!!!!!!! !!!

ra1l [238]

I think the answer is c

3 0

3 years ago

Sin(x2 y2 da r , where r is the region in the first quadrant between the circles with center the origin and radii 1 and 5

Rudik [331]

I assume there's a plus sign missing above...

Convert to polar coordinates, using

$\begin{cases}x(r,\theta)=r\cos\theta\\y(r,\theta)=r\sin\theta\end{cases}$

Then the Jacobian is

$\dfrac{\partial(x,y)}{\partial(r,\theta)}=\begin{vmatrix}x_r&y_r\\x_\theta&y_\theta\end{vmatrix}=\begin{vmatrix}\cos\theta&\sin\theta\\r\sin\theta&-r\cos\theta\end{vmatrix}=-r$

Then

$\mathrm dA=\mathrm dx\,\mathrm dy=|-r|\,\mathrm dr\,\mathrm d\theta=r\,\mathrm dr\,\mathrm d\theta$

so the integral can be written as

$\displaystyle\iint_R\sin(x^2+y^2)\,\mathrm dA=\int_0^{\pi/2}\int_1^5r\sin(r^2)\,\mathrm dr\,\mathrm d\theta$

Let $s=r^2$ , so that $\dfrac{\mathrm ds}2=r\,\mathrm dr$ .

$\displaystyle\frac12\int_0^{\pi/2}\int_1^{25}\sin s\,\mathrm ds\,\mathrm d\theta=-\frac12(\cos25-\cos1)\int_0^{\pi/2}\mathrm d\theta=\frac\pi4(\cos1-\cos25)$

3 0

3 years ago

In a multiplication problem, the number you multiply is the

umka2103 [35]

Answer:

I believe it is called the multiplicand

Step-by-step explanation:

4 0

4 years ago

49-3m=4m+4 bbbbbbbbbbbbbbbbbbbbbbbb

Travka [436]

Answer:

<h2>m = 6.43 (approx. )</h2>

Step-by-step explanation:

49 - 3m = 4m + 4

=> 49 - 4 = 4m + 3m

=> 45 = 7m

$= > \frac{45}{7} = m$

=> 6.428571... = m

=> m = 6.43 (approx. ) (Ans)

4 0

3 years ago

Read 2 more answers

Can someone help me with this math? explain your answer too.

Contact [7]

Answer:

1. Consistent independent.

2. Coincident

3. Inconsistent.

Step-by-step explanation:

4x + y = 8

x + 3y = 8 Multiply this equation by -4:

-4x - 12y = -32

Adding this to the first equation:

-11y = -24 giving y = -24/-11 = 2.18

Substituting in the first second equation:

x + 3(2.18) = 8 giving x = 1.46.

So this system of equations has roots (1.46, 2.18) and is consistent independent.

-4x + 6y = -2

2x - 3y = 1 Multiply this by -2:

-4x + 6y = -2

So these 2 equations are the same and will give the same graph on the coordinate plane, and so has:

Infinite solutions and is coincident.

5x - 2y = 4

5x - 2y = 6

We can see immediately that this system of equations has NO Solutions.

If we subtract the 2 equations we get:

0 = -2 which is of course, absurd.

Classification Inconsistent.

5 0

3 years ago