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3 years ago

Can someone please help me with this? What would be the measure of angle R to the nearest tenth?

Mathematics

1 answer:

jasenka [17]3 years ago

4 0

Answer:

Step-by-step explanation:

There are two ways to do this.

1. You could make an accurate diagram and measure R. This works but the computer won't like it. However you will know if you are correct. An answer ± 2 degrees would tell you that you are likely correct.

2. The second way is to find <C. Similarity guarantees that <C and <R are equal. The adjacent side to angle C is the second longest line. The second longest line in PQR is the adjacent side of <R.

Naturally we will use the second method, but you ought to try the first method. It's cumbersome but it will teach you how to read the values of triangles to make clear the trig functions.

Tan(C) = opposite over adjacent

Tan(C) = 7 / 9

Tan(C) = .77777777...

<C = tan-1(0.7777777...)

<C = 37.87

<C = 37.9

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1 quarter 2 dimes 3 pennies how munch I have

vfiekz [6]

In total, you have 48 cents.
25+10+10+3= 48

Give 5 stars and brainliest answer if this helped please!

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3 years ago

Write a number that is 100 times greater than 32,731

MakcuM [25]

Answer:

327,310

Step-by-step explanation:

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4 years ago

A group of friends compared the number of text messages they sent in one week.

Ivan

Answer:

The sample that best represents the population is the sample of the last eight friends

Step-by-step explanation:

Let's find out the sample that best represents the population, this way:

Mean of the number of text messages a group of 24 friends sent in one week = 10,700/24 = 445.83

Mean of the sample of the first six friends = 1,850/6 = 308.33

Mean of the sample of the first ten friends = 3,300/10 = 330

Mean of the sample of the last twelve friends = 6,500/12 = 541.67

Mean of the sample of the last eight friends = 4,150/8 = 518.75

The sample that best represents the population is the sample of the last eight friends, because its mean is the closest to the population mean (445.83 and 518.75)

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4 years ago

A college senior who took the Graduate Record Examination exam scored 530 on the Verbal Reasoning section and 600 on the Quantit

erastovalidia [21]

Answer:

Step-by-step explanation:

Given that a college senior who took the Graduate Record Examination exam scored 530 on the Verbal Reasoning section and 600 on the Quantitative Reasoning section.

Quantitative reasons scores are N (429, 148)

Hence Z score for the college senior = $\frac{530-429}{148} \\=0.6824$

The mean score for Verbal Reasoning section was 460 with a standard deviation of 105

Verbal reasoning score was N(460, 105)

The score of college senior = 530

Z score for verbal reasoning = $\frac{530-460}{105} \\=0.6667$

comparing we can say he scored more on quantiative reasoning.

Thus comparison was possible only by converting to Z scores.

7 0

3 years ago

Find two numbers if their sum is 91 and the ratio is 6:7?

Archy [21]

Answer:

The numbers are 42 and 49

Step-by-step explanation:

Let's make it into a simple equation. Make the ratios into a single variable like this: 6x+7x=91. If you simplify it more you would get 13x=91. From here divide both sides by 13. This will result with x being 7. But the problem wants you to find 6x and 7x. If you multiply 7 with 6 you would have an answer of 42. If you multiply 7 with 7 you get 49. If you want to check add 42 and 49. If you get 91, this means that the answer is correct

7 0

3 years ago