Calculate the measure of each exterior angle of a 90 sided regular polygon. Explain.

Answers

Answer 1

Answer: 90 sides give us 90 angles

sum of all inside angels is (n-2) * 180 deg. where n is number of angels

so one inside angle is
(90-2)*180 deg / 90 = 88* 2 deg = 176 deg.

measure of exterior angle is 360 - 176 = 184 deg.

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The sum of a number and seven times of it is equal to the product of 25.6 and 12.5. What will be one fourth of that number?

Answers

Answer:

x + 7x = (25.6)(12.5)

8x = 320

x = 40, so (1/4)(40) = 10

If someone made 65 ounces of jelly if they put the same amount of jelly in 6 jars how much jelly is in each jar

Answers

There would be 10.8 ounces in each jar.

3.90 ounces in each jelly jar

In a class, there are io boys and 15 girls. three students are selected at random. The probability that the selected students are 1 boy and 2 girls, is options: a. 25/36 b. 18/23 c. 21/46 d. 1/32

Answers

Answer:

Step-by-step explanation:

Correct option is C)

There are 15 boys and 10 girls in a class

We have to select 3 students such that there should be 1 girl and 2 boys

The number of ways we can select 3 students is

25C3=2300

The number of ways we can select 3 students such that there is 1 girl and 2 boys is 15×7×10=1050

The probability is 1050/2300 =21/46

Therefore the correct option is C

Final answer:

finding the number of combinations for the desired scenario and the total possible combinations, we find that the probability is 21/46.

Explanation:

In order to solve this problem, we need to apply the principles of combinatorics and probability. The total number of students in the class is 25 (10 boys and 15 girls). Firstly, let's calculate the combinations for the scenario of selecting 1 boy out of 10. This can be done by 10C1 resulting in 10 possibilities. Secondly, let's calculate the combinations of selecting 2 girls out of 15, which is 15C2 and gives us 105 possibilities.

Multiply those together to find the total scenario we're interested in, which is 1,050. The total possible combinations of selecting 3 students out of 25 irrelevant of gender would be 25C3, resulting in 2,300 possible combinations.

Therefore, the probability that the selected students are 1 boy and 2 girls is 1,050/2,300. Simplifying this fraction gives us 21/46.

Learn more about Combinatorics and Probability here:

brainly.com/question/34324838

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Find ratio equal to 12:7

Answers

12:7
12(2):7(2)
24:14

12:7 = 24:14
I hoped I helped(:

12:7
You can multiply it by like anything so....
Like if you multiply it by two it will equal
24:14
Or by 3
36:21
It by 4
48:28
It really doesn't matter which one because all the ratios that I just gave you are all equal to 12:7
I really hope I helped

2. Yumi takes hour to complete 50 math problems. Eric is able to complete 48math problems in hour. Which student can complete math problems at a
greater rate of problems per hour?

Answers

Answer:

Yumi

Step-by-step explanation: because she is 2 ahead of Eric

Answer:yumi is faster by two questions Step-by-step explanation:

8 more than a number is 13

Answers

To find the number you are looking for when it says "8 more than a number" just subtract. 13-8=5. ANSWER:5

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