Kai wrote the number 85 on the board. Is 85 prime or composite? Explain

Answers

Answer 1

Answer: 85 is composite because it is the multiple of 5 and 17

Answer 2

Answer: 85 is a composite number because a prime number is a number that's factors are only itself.A composite number has two or more factors

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What are 3 other names for the solutions to a quadratic function

Answers

The solution of a quadratic function is also called as zeroes, roots and x - intercept.

What is solution of a quadratic function?

Solving quadratic function means finding a value (or) values of variable which satisfy the equation. The value(s) that satisfy the quadratic function is known as its roots/ zeroes and x - intercept.

Example-

$x^(2) -3x +2 = 0\n\nx^(2) -2x - x + 2 = 0\n\nx(x - 2) - 1(x - 2) = 0\n\n(x - 1)(x - 2) = 0\n\nx = 1 \, or \, 2$

Here, 1 and 2 are zeroes/ roots/ intercept of the quadratic function $x^(2) -3x +2 = 0$ .

Learn more about solution of a quadratic function here

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Zeros, roots, solutions, and solution sets are all 4 names

Andrew jogged for 50 minutes and covered a distance of 2.2 milesWhat is Andrew's speed in miles per hour?

1) 22.7 miles per hour

2) 2.64 miles per hour

3)2.2 miles per hour

4) 1.83 miles per hour

Answers

it is 50/2.2 and the answer is 2)22.7 =) get a great score!!!!!

In a certain class of students, there are 12 boys from wilmette, 5 girls from kenilworth, 7 girls from wilmette, 4 boys from Glencoe, 2 boys from kenilworth and 9 girls from Glencoe. If the teacher calls upon a student to answer a question, what is the probability that the student will be from kenilworth?

Answers

Answer:

7/39 = 17.94%

Step-by-step explanation:

Town Students Relative Frequency

Wilmette 12 boys + 7 girls = 19 19/39 = 48.72%

Glencoe 9 girls + 4 boys = 13 13/39 = 33.33%

Kenilworth 2 boys + 5 girls = 7 7/39 = 17.94%

Total 39 students 39/39 = 100%

Another approach to solve probability is the Relative Frequency. A frequency is the number of times an event occurs. To solve for the relative frequency, it’s the ratio of the frequency of an event to the total outcomes. From the question, it is clear that for each town, it was subdivided into boys and girls but the word students represent the combined number of boys and girls for a particular town. so finding the probability that a student called at random to answer a question is from kenilworth is simply the ratio of students from kenilworth over the total number of students in the class.

The probability is 5/39

20 points answer if you know the answer!!!Beth measured the distance from home plate to the pitcher’s mound on a baseball field. She measured the distance to be 69 ft. The actual distance from home plate to the pitcher’s mound is 60.5 ft.

What is the percent error in Beth’s measurement? Round to the nearest tenth of a percent, if necessary.

A.

8.5%

B.

12.3%

C.

14%

D.

85%

Answers

I believe that answer a is the correct answer.

pretty sure its D. you need to divide 60.5 by 69

The ratio of the number of left-handed batters to the number of right handed batters is 5:8. There are 45 left-handed batters. find the ratio of the number of left-handed batters ti the total number of batters. give the answer in simplest form.

Answers

Answer=15:39

Step1(find the number of right handed batters)

Left-handed batters=45

5 45
__=___
8 x

Cross multiply
5x=360
divide both sides by 5
x=72
Right-handed batters=72

Step 2 (find the number of total batters)
total batters=45+72=117

Step3 (find the ratio of left handed batters to total batters)

Left-handed batters to total batters= 45/117
45/117 can be shortened to 15/39

Answer=15:39

Ammar hikes 2 3/4 miles of nature trail in 1 hour and 15 minutes. How many miles of trail does ammar hike per hour?

Answers

Ammar hikes 2.75 miles in 75 minutes so he hikes 2.75 miles in 1.25 hours. If you divide 2.75 by 1.25, you find his rate per hour: 2.2 miles per hour.

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