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mina [271]
2 years ago
6

1. Find three rational numbers between 7/12 and 7/11

Mathematics
1 answer:
Sonbull [250]2 years ago
5 0

Step-by-step explanation:

In this problem, we need to find three rational numbers between 7/12 and 7/11.

First rational no :

c=\dfrac{\dfrac{7}{12}+\dfrac{7}{11}}{2}\\\\c=\dfrac{161}{264}

Second rational no :

d=\dfrac{\dfrac{7}{12}+\dfrac{161}{254}}{2}\\\\d=\dfrac{1855}{3048}

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A teacher is interested in performing a hypothesis test to compare the mean math score of the girls and the mean math score of t
tamaranim1 [39]

Answer:

d. Two-sample t-test. There is no natural pairing between the two populations.

Step-by-step explanation:

A two-sample t - test is a test performed on the data of two random samples, each independently obtained from a different given population. The purpose of the test is to determine whether the difference between these two populations is statistically significant.

Independent samples are samples that do not affect one another. The mean math scores of the samples of boys and girls do not affect each other. They are independent samples, hence the correct test procedure is two - sample t - test

8 0
1 year ago
A family are going away for the weekend. They look at a road map to see where their hotel is. The scale used is 1 : 250,000 The
kirill [66]

Answer:

Answer: 21,250m or 21,25km.

Step-by-step explanation:

8.5cm times 250,000 = 2,125,000cm

1m = 100cm is 1cm = 0.01m

2,125,000cm = 2,125,000 times 0.01 = 21,250m

1km = 1,000m is 1m = 0.001km

21,250m = 21,250 times 0.001km = 21.25km

And you get your answer.

6 0
2 years ago
Read 2 more answers
Use the table below to answer this question:
ruslelena [56]

Given:

The table of values.

To find:

The average rate of change for the given function from x = −1 to x = 2.

Solution:

From the given table it is clear that y=-3 at x=-1 and y=3 at x=2.

Formula for average rate of change is

m=\dfrac{y_2-y_1}{x_2-x_1}

Using the above formula, the average rate of change for the given function from x = −1 to x = 2 is

m=\dfrac{3-(-3)}{2-(-1)}

m=\dfrac{3+3}{2+1}

m=\dfrac{6}{3}

m=2

Therefore, the correct option is D.

5 0
2 years ago
PLEASE ANSWER PLEASEE!!!!!!!
Montano1993 [528]

Answer:

they would both be 61°

Step-by-step explanation:

when the angles make out a straight line it equals to 180 and 180 subtracted to 119 comes out to 61 and both b and c are vertical angles which would make them congruent

4 0
1 year ago
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A 12.0-g apple falls from a tree to the ground. What is the apple’s kinetic energy before it drops?
Doss [256]
0 j would be your answer

                 
3 0
2 years ago
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