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mote1985 [20]
2 years ago
13

For each of the following a) identify the inverse function needed to solve for the indicated angle and b) solve for the angle (r

ound to the nearest tenth of a degree).

Mathematics
1 answer:
Genrish500 [490]2 years ago
5 0

The angle is the cosine inverse function because base over hypotenuse. Then the angle will be 37°.

<h3>What is trigonometry?</h3>

The connection between the lengths and angles of a triangular shape is the subject of trigonometry.

The triangle with base of 4 units and hypotenuse of 5 units.

We know that the angle is given by the cosine inverse function because base over hypotenuse. Then we have

⇒ cos⁻¹ (4/5)

Then the angle will be

⇒ 36.869 ≈ 37°

More about the trigonometry link is given below.

brainly.com/question/22698523

#SPJ1

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Draw the graph of y = 3x – 2 for –3 ≤ x ≤ 3
krok68 [10]

Answer:

In this case, we have a linear equation:

y = 3*x - 2

And we want to graph this in the interval  –3 ≤ x ≤ 3

Because this is a linear equation, to graph it we can just evaluate the equation in both extremes of the interval to find the two extremes of the graph.

Then we just need to connect these points with a segment, and that will be the graph of our equation.

Because the symbols used are: ≤

We need to graph the extremes with a black dot, which means that the point is included in the graph (would be different if we had -3 < x < 3)

The first extreme is when we have x = -3

y = 3*(-3) - 2 = -9 - 2 = -11

Then we have one extreme at (-3, -11)

The other is when x = 3

y = 3*3 - 2 = 9 - 2 = 7

Then the other extreme is at (3, 7)

Now we just need to draw these two points and connect them, an example of this can be seen in the image below:

4 0
3 years ago
Write each expression in scientific notation. Put your answer for EACH part in the text box. You should have 5 answers for this
Zolol [24]

Answer:

A) 4 × 10^-2

B) 7.2 × 10^-2

C) 3.25 × 10^-5

D) 3 × 10^-3

E) 2.3 × 10^-1

Step-by-step explanation:

7 0
3 years ago
A sample of 900900 computer chips revealed that 49%49% of the chips do not fail in the first 10001000 hours of their use. The co
dedylja [7]

Answer:

The proportion of chips that do not fail in the first 1000 hours of their use is 52%.

Step-by-step explanation:

The claim made by the company is that 52% of the chips do not fail in the first 1000 hours of their use.

A quality control manager wants to test the claim.

A one-proportion <em>z</em>-test can be used to determine whether the proportion of chips do not fail in the first 1000 hours of their use is 52% or not.

The hypothesis can be defined as:

<em>H₀</em>: The proportion of chips do not fail in the first 1000 hours of their use is 52%, i.e. <em>p</em> = 0.52.

<em>Hₐ</em>: The proportion of chips do not fail in the first 1000 hours of their use is different from 52%, i.e. <em>p</em> ≠ 0.52.

The information provided is:

\hat p=0.49\\n=900\\\alpha =0.02

The test statistic value is:

z=\frac{\hat p-p}{\sqrt{\frac{p(1-p)}{n}}}=\frac{0.49-0.52}{\sqrt{\frac{0.52(1-0.52)}{900}}}=-1.80

The test statistic value is -1.80.

Decision rule:

If the <em>p-</em>value of the test is less than the significance level then the null hypothesis will be rejected and vice-versa.

Compute the <em>p</em>-value as follows:

p-value=2\times P(Z

*Use a <em>z</em>-table.

The <em>p</em>-value = 0.07186 > <em>α</em> = 0.02.

The null hypothesis was failed to be rejected at 2% level of significance.

<u>Conclusion</u>:

The proportion of chips that do not fail in the first 1000 hours of their use is 52%.

8 0
3 years ago
What is? The length of a rectangle is 5 less than twice the width. If the perimeter of the rectangle is 146cm, find the dimensio
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Answer:

The width is 26cm and the length is 47cm :)

Step-by-step explanation:

im doing this rn

6 0
3 years ago
Can you please help me on this problem? 5:2:11=__:6:_
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Answer:

Huhujshshddhdjxjx jjajsjsjs isizjux

4 0
3 years ago
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