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GarryVolchara [31]
3 years ago
13

Using a trigonometric ratio to find an angle measure of a right triangle‼️ round to the nearest 10‼️

Mathematics
1 answer:
Verizon [17]3 years ago
5 0

To find the angle x, you are given the triangle side lengths that are opposite and adjacent to the angle. The opposite side is 49 units long. The adjacent side is 24 units long. The trigonometric function that corresponds to the opposite and adjacent legs is tangent.

to find x: tanx=\frac{49}{24}

to find an angle using a trigonometric function we must use the inverse function.

arctan(\frac{49}{24} )=63.90457584

The angle x, to the nearest tenth of a degree is 63.9 degrees.

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8 0
3 years ago
Stephen and five of his friends went out to eat. They decided to split the bil
kirill [66]

Hi

Stephen and his five friends = 6 people at the restaurant

Let's call X the amount of the bill.

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6 0
2 years ago
A recent national survey found that high school students watched an average (mean) of 7.8 movies per month with a population sta
notka56 [123]

Answer:

Step-by-step explanation:

Given that :

Mean = 7.8

Standard deviation = 0.5

sample size = 30

Sample mean = 7.3 5.4772

The null and the alternative hypothesis is as follows;

\mathbf{ H_o: \mu  \geq  7.8}

\mathbf{ H_1: \mu  <  7.8}

The test statistics can be computed as :

z = \dfrac{X- \mu}{\dfrac{\sigma}{\sqrt{n}}}

z = \dfrac{7.3- 7.8}{\dfrac{0.5}{\sqrt{30}}}

z = \dfrac{-0.5}{\dfrac{0.5}{5.4772}}

z = - 5.4772

The p-value at  0.05 significance level is:

p-value = 1- P( Z < -5.4772)

p value = 0.00001

Decision Rule:

The decision rule is to reject the null hypothesis if  p value is less than 0.05

Conclusion:

At  the 0.05 significance level,  there is sufficient information to reject the null hypothesis. Therefore ,we  conclude that college students watch fewer movies a month than high school students.

8 0
3 years ago
The population of DeSoto rose an
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Answer:

Please check explanations

Step-by-step explanation:

Here, we want to make an interpretation

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For the rate of change, we have that there is an average increase of 142 people for each of 5 years;

That means per 5 years, there is an increase of 142 people and this is what represents the rate of change

4 0
2 years ago
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lina2011 [118]
You will need the Total Loan Cost Formula which is
(I'm having trouble attaching the graphic - I think the problem is with Brainly).

If nothing else, go to this web page.
It has a calculator and the formula.
http://www.1728.org/loanfrm4.htm

I get an answer of  $6,238.70


3 0
3 years ago
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