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Viefleur [7K]
3 years ago
7

This graph shows the costs of purchasing two types of laundry detergent.

Mathematics
2 answers:
Kruka [31]3 years ago
8 0
The the answer would be B
Neko [114]3 years ago
6 0
B) Detergent B is less expensive than Detergent A 
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What are partial products for 35 x 69
stealth61 [152]
35×69=35*69
35*69=2415
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3 years ago
The National Center for Educational Statistics surveyed 5400 college graduates about the lengths of time required to earn their
fenix001 [56]

Answer:

The 90% confidence interval for the mean time required by all college graduates is between 5.36 years and 5.44 years.

Step-by-step explanation:

We have that to find our \alpha level, that is the subtraction of 1 by the confidence interval divided by 2. So:

\alpha = \frac{1-0.9}{2} = 0.05

Now, we have to find z in the Ztable as such z has a pvalue of 1-\alpha.

So it is z with a pvalue of 1-0.05 = 0.95, so z = 1.645

Now, find the margin of error M as such

M = z*\frac{\sigma}{\sqrt{n}}

In which \sigma is the standard deviation of the population and n is the size of the sample.

M = 1.645*\frac{1.9}{\sqrt{4500}} = 0.04

The lower end of the interval is the sample mean subtracted by M. So it is 5.4 - 0.04 = 5.36 years.

The upper end of the interval is the sample mean added to M. So it is 5.4 + 0.04 = 5.44 years.

The 90% confidence interval for the mean time required by all college graduates is between 5.36 years and 5.44 years.

3 0
3 years ago
Mako’s goal is to save $42. He currently has $2 and plans to save $18 per week. Let x represent the number of weeks Mako saves m
earnstyle [38]

take them seriously, they weren't a joke

7 0
3 years ago
Option 1: Use Your Credit Card (15 pts)
Elza [17]

Answer:

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Step-by-step explanation:

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4 0
3 years ago
Maria goes to Applebee's with her 2 friends. They each order an entrée, which costs $15 each, and a soda, which costs $3.50 each
Leona [35]

Answer:

Part A: The total is 57.58

Part B: 19.19 each

Step-by-step explanation:

Part A: 15(3) +3.50(3)=55.50

55.50 plus the 3.75% tip (not really addition i dont know how to find a percentage so i looked that part up) but it come out to $57.58

Part B: 57.58 divided by 3 is $19.19 ( I do 3 because Maria and 2 more friends)

Hope it helps and that it is 100% correct dont come at me if something is wrong with my math

6 0
3 years ago
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