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3 years ago

Calculate the value of the indicated angle.

Mathematics

1 answer:

allsm [11]3 years ago

8 0

Answer:

56°

Step-by-step explanation:

Using the sine ratio in the right triangle, that is

sin ? = $\frac{opposite}{hypotenuse}$ = $\frac{10}{12}$ , then

? = $sin^{-1}$ ( $\frac{10}{12}$ ) ≈ 56° ( to the nearest degree )

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sp2606 [1]

Answer:

Mean of sampling distribution = 25 inches

Standard deviation of sampling distribution = 4 inches

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 25 inches

Standard Deviation, σ = 12 inches

Sample size, n = 9

We are given that the distribution of length of the widgets is a bell shaped distribution that is a normal distribution.

a) Mean of the sampling distribution

The best approximator for the mean of the sampling distribution is the population mean itself.

Thus, we can write:

$\bar{x} = \mu = 25\text{ inches}$

b) Standard deviation of the sampling distribution

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3 years ago

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trasher [3.6K]

Y=mx+b
lines are parallels so m=2

y=2x+b
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put these value in equation
2=2*4+b
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b=2-8
b=-6
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(verification on the picture)

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Solnce55 [7]

Answer:

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Step-by-step explanation:

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Sin(3pi over 4) = _____

OlgaM077 [116]

If you're using the app, try seeing this answer through your browser: brainly.com/question/2790456

______________

$\mathsf{sin\!\left(\dfrac{3\pi}{4}\right)}\\\\\\ =\mathsf{sin\!\left(\dfrac{3\cdot 180^\circ}{4}\right)}\\\\\\ =\mathsf{sin(135^\circ)}\\\\ =\mathsf{sin(180^\circ-135^\circ)}$

$=\mathsf{sin(45^\circ)}\\\\ =\mathsf{\dfrac{\sqrt{2}}{2}}\quad\longleftarrow\quad\textsf{this is the answer.}$

I hope this helps.=)

Tags: <em>sine sin common angles trig trigonometry </em>

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