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Maslowich
4 years ago
12

The gas mileage for a certain model of car is known to have a standard deviation of 4 mi/gallon. a simple random sample of 64 ca

rs of this model is chosen and found to have a mean gas mileage of 27.5 mi/gallon. construct a 96.5% confidence interval for the mean gas mileage for this car model.
Mathematics
1 answer:
nataly862011 [7]4 years ago
3 0
Now, to increase the confidence interval to 96% the mean difference should be greater thus allowing the data to behave a greater discrepancy. The Standard Deviation is a measure of how spread out numbers are. Hope this answer has helped you. Have a good day!
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A store sells cooking oil of two different brands in bottles of the same size. The table below and the equation each show the pr
Alexxandr [17]
Using the data, we can calculate the price per bottle for Brand A, which is:
24 / 2
= $12 per bottle

We also know that the slope of a line shows the rate of change, so the price per bottle for Brand B is $15. 

The difference per bottle is 15 - 12 = Brand B is cost $3 more per bottle
The difference for 9 bottles will be: 9 * 3 = $27.
7 0
3 years ago
Select a real-world problem for the equation 18w = 108. Then solve the problem. A If total rainfall for last month was 108 inche
Ket [755]

The problem is multiplying w by 18 to get a total of 108.

The answer would be :

D If one full glass holds 18 ounces of water, how many full glasses will hold 108 ounces?

To solve for the number of cups divide both sides of the equation by 18:

18w = 108

W= 108 / 18

W = 6

It would take 6 18 ounce glasses to equal 108 total ounces.

6 0
3 years ago
Its for a test and its urgent please help :)
geniusboy [140]

Answer:

<h2>34</h2><h2 />

Step-by-step explanation:

| 2 - 4a | - 2(b - 7)

let a = 3, b = -5

substitute a = 3, b = -5 into the equation:

| 2 - 4a | - 2(b - 7)

= | 2 - 4(3) | - 2(-5 - 7)

= | 2 - 12 | - 2(-12)

= | -10 | + 24

= 10 + 24

= 34

3 0
3 years ago
Three sides of a quadrilateral are the same length, g, The length of the fourth side is 7 inches,
Ulleksa [173]

Answer:

Step-by-step explanation:

Let s represent the length of each of the three sides mentioned.  The length of the fourth side is 7 inches.  Adding the lengths of the four sides together yields 10 inches:  g + g + g + 7 = 10 (inches)

Then 3g + 7 = 10, or 3g = 3, or g = 1.  

This equation is OK, but there's no solution, since 3g or just 3 is less than 7.  With side lengths 1, 1, 1, 7, we cannot draw a quadrilateral.

8 0
3 years ago
Please help its past due!
Olenka [21]

A(−2, 2), B(−2, 4), C(2, 4), and D(2, 2).

rule (x + 7, y − 1)

To find new  coordinates we add 7 with x  and subtract 1 from y

A(−2, 2)  -----> A' (5,1)

B(−2, 4) -------> B' (5, 3)

C(2, 4) ---------> C' (9, 3)

D(2, 2) -------->D' (9, 1)

Characteristics

When we connect all the points by line segments, the line A'B' will be parallel to C'D'.

Also, B'C' parallel to A'D'.

All the four lines forms a rectangle .





6 0
4 years ago
Read 2 more answers
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