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stiks02 [169]
3 years ago
6

A truck and a car go at the same time against each other from two cities, which are at a distance of 400 km from each other. If

the vehicles are moving at a constant speed of 68 km / h and 82 km / h, respectively, find after how long they have met?
Mathematics
1 answer:
ivann1987 [24]3 years ago
7 0

Answer: after about 96 Minutes

Step-by-step explanation:

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angle a∠aangle, a and \angle b∠bangle, b are complementary angles. \angle a∠aangle, a measures 59^\circ59
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An automobile manufacturer wants to assess a new style of visual display to see if it changes the amount of reported eye-strain
finlep [7]

Answer:

Standard error = 0.34

t-statistic = 11.18

Step-by-step explanation:

Given Data:

Mean difference d = 3.8

Standard deviation S.D = 1.36

Number of people = 16

The appropriate test are:

1. Standard error

2. T- statistic

1. Calculating the standard error using the formula;

Standard error = S.D/√n

                         = 1.36/√16

                          = 1.36/4

                           = 0.34

2. Calculating the t-statistic using the formula;

t-statistic = d/(S.D/√n)

              = 3.8/(1.36/√16)

              = 3.8/(1.36/4)

              = 3.8/0.34

               = 11.18

7 0
3 years ago
Find the slope. Please reply if you can help
aliina [53]

Answer:

1/1 because you go up 1 and over 1

7 0
3 years ago
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