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jarptica [38.1K]
3 years ago
7

Find two Consecutive even integers Such that the smaller added two times the larger gives a sum of 22

Mathematics
1 answer:
Lesechka [4]3 years ago
7 0

Answer:

6, 8

Step-by-step explanation:

any even number is two less than the next even number. or two more than the previous even number.

x + 2(x+2) = 22

x + 2x + 4 = 22

3x = 18

x = 6

x + 2 = 8

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Harman [31]

Answer:

a) Yes, the two variables correlated

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Step-by-step explanation:

a) Yes the two variables are moderately co-related as the value of co-relation lies between 0.5 and 0.7

b) Yes the variation in amount of sugar leads to variation in the number of orders with sugar.

8 0
3 years ago
There are two college entrance exams that are often taken by students, Exam A and Exam B. The composite score on Exam A is appro
elena55 [62]

Answer:

B.The score on Exam A is better, because the percentile for the Exam A score is higher.

Step-by-step explanation:

Problems of normally distributed samples can be solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

Two exams. The exam that you did score better is the one in which you had a higher zscore.

The composite score on Exam A is approximately normally distributed with mean 20.1 and standard deviation 5.1.

This means that \mu = 20.1, \sigma = 5.1.

You scored 24 on Exam A. So

Z = \frac{X - \mu}{\sigma}

Z = \frac{24 - 20.1}{5.1}

Z = 0.76

The composite score on Exam B is approximately normally distributed with mean 1031 and standard deviation 215.

This means that \mu = 1031, \sigma = 215.

You scored 1167 on Exam B, s:

Z = \frac{X - \mu}{\sigma}

Z = \frac{1167 - 1031}{215}

Z = 0.632

You had a better Z-score on exam A, so you did better on that exam.

The correct answer is:

B.The score on Exam A is better, because the percentile for the Exam A score is higher.

3 0
4 years ago
Which system of inequalities is shown in the graph?
Marysya12 [62]

Answer:

sry I can't understand how to do this question

5 0
3 years ago
When y=75 x=2.5, so what does y= when x=2.75?
natka813 [3]

sorry about that i put the wrong anserw

3 0
3 years ago
Read 2 more answers
PLEASE HELP ILL GIVE BRAINLIEST!!List the sides of ∆DEF in order from shortest to longest if m∠D = 20, m∠E = 120, and m∠F = 40.
zvonat [6]

Answer:

In triangle DEF:

Given:  m\angle D = 20^{\circ} ,  m\angle E= 120^{\circ} and  m\angle F = 40^{\circ}

To list the sides of a triangle in order from shortest to longest.

In the Figure as shown below :

If one of the angle of a triangle is larger than, then the sides opposite the larger angle is longer than the side opposite to the shorter

m\angle D < m\angle F < \angle E

\text{EF} < \text{DE}

Therefore, the list of the sides of a triangle DEF in order from shortest to longest is, \text{EF} < \text{DE}

7 0
3 years ago
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