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polet [3.4K]
3 years ago
11

What is the equivalent of pi over 3 radians in degrees?

Mathematics
2 answers:
docker41 [41]3 years ago
8 0
\bf \begin{array}{ccllll}
radians&d e grees\\
\text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\
\pi &180\\
\frac{\pi }{3}&d
\end{array}\implies \cfrac{\pi }{\frac{\pi }{3}}=\cfrac{180}{d}\implies \cfrac{\frac{\pi }{1}}{\frac{\pi }{3}}=\cfrac{180}{d}
\\\\\\
\cfrac{\pi }{1}\cdot \cfrac{3}{\pi }=\cfrac{180}{d}\implies 3=\cfrac{180}{d}\implies d=\cfrac{180}{3}

and pretty sure you know how much that is.
max2010maxim [7]3 years ago
4 0

Answer:  The equivalent expression in degrees is 60°.

Step-by-step explanation:  We are given to find the equivalent of the following expression in degrees.

E=\dfrac{\pi}{3}~\textup{radians}.

We will be using the UNITARY method the solve the given problem.

We know that

\pi~\textup{radians}=180^\circ\\\\\\\Rightarrow 1~\textup{radian}=\left(\dfrac{180}{\pi}\right)^\circ\\\\\\\Rightarrow \dfrac{\pi}{3}~\textup{radians}=\left(\dfrac{\pi}{3}\times\dfrac{180}{\pi}\right)^\circ=60^\circ.

Thus, the equivalent expression in degrees is 60°.

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A study dealing with health care issues plans to take a sample survey of 1500 Americans to estimate the mean dollar amount that
frutty [35]

Answer:

The population parameter of this study is the population mean.

Step-by-step explanation:

A population parameter is a numerical measure representing a certain characteristic of the population. For example, population mean, population variance, population proportion, and so on.

The population parameter is computed using all the values of the population.

The population parameter can be estimated using the sample statistic. If the value of the population parameter is not known, then a random sample of large size, say <em>n</em> ≥ 30 can be selected from the population and the statistic value can be computed. This statistic value is considered as the point estimate of the parameter. It is also known as the unbiased estimator of the parameter.

In this case the survey involved sampling of 1500 Americans to estimate the mean dollar amount that Americans spent on health care in the past year.

The sample selected is used to compute the sample mean dollar amount that Americans spent on health care.

So, the population parameter of this study is the population mean.

7 0
3 years ago
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Answer:

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Step-by-step explanation:

6 0
3 years ago
Write one sine and one cosine equation for each graph below.
pychu [463]

Answer:

Q13. y = sin(2x – π/2); y = - 2cos2x  

Q14. y = 2sin2x -1; y = -2cos(2x – π/2) -1

Step-by-step explanation:

Question 13

(A) Sine function

y = a sin[b(x - h)] + k

y = a sin(bx - bh) + k; bh = phase shift

(1) Amp = 1; a = 1

(2) The graph is symmetrical about the x-axis. k = 0.

(3) Per = π. b = 2

(4) Phase shift = π/2.  

2h =π/2

h = π/4

The equation is

y = sin[2(x – π/4)} or

y = sin(2x – π/2)

B. Cosine function

y = a cos[b(x - h)] + k

y = a cos(bx - bh) + k; bh = phase shift

(1) Amp = 1; a = 1

(2) The graph is symmetrical about the x-axis. k = 0.

(3) Per = π. b = 2

(4) Reflected across x-axis, y ⟶ -y

The equation is y = - 2cos2x  

Question 14

(A) Sine function

(1) Amp = 2; a = 2

(2) Shifted down 1; k = -1

(3) Per = π; b = 2

(4) Phase shift = 0; h = 0

The equation is y = 2sin2x -1

(B) Cosine function

a = 2, b = -1; b = 2

Phase shift = π/2; h = π/4

The equation is

y = -2cos[2(x – π/4)] – 1 or

y = -2cos(2x – π/2) - 1

6 0
3 years ago
Can you help me with my math?
Dennis_Churaev [7]

Answer:

y = -3x - 1

Step-by-step explanation:

First find the slope then the Y-intercept

5 0
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Answer please, id appreciate some help:)?
Tems11 [23]
I believe that the answer is c but if you wanted to make sure you could figure out the correlation on a graphing calculator.
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3 years ago
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