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schepotkina [342]
3 years ago
10

Solve for r. 10 (r - 6) = -17 Enter the answer in the box.

Mathematics
2 answers:
Brrunno [24]3 years ago
6 0

Answer:

4.3

Step-by-step explanation:

look at the picture .......

mariarad [96]3 years ago
3 0

<u>Equation/Question:</u>

Solve for R.

10 (r - 6) = -17

Enter the answer in the box.

<u>Answer/Steps to answer:</u>

1. Divide both sides by 10.

r-6=-17/10.

2. Add 6 to both sides.

r=− 17/10 +6

3. Simplify  -17/10 +6  to  43/10.

r=43/10

-------------------

<u>Checking:</u>

10(r−6)=−17

1. Let r=43/10

10(43/10-6)=-17

2. Simplify 43/10 −6  to 17/10

10× −17/10 =−17

3. Cancel 10.

-17=-17

<u>Done By NeighborhoodDealer</u>

​

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Hey there, hope I can help!

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Hope this helps!
5 0
3 years ago
A research company desires to know the mean consumption of meat per week among people over age 23. A sample of 164 people over a
Elan Coil [88]

Answer:

The 80% confidence interval for the mean consumption of meat among people over age 23 is between 4 and 4.2 pounds.

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{1-0.8}{2} = 0.1

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 1-0.1 = 0.9, so z = 1.28

Now, find 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 = 1.28*\frac{0.7}{\sqrt{164}} = 0.07

The lower end of the interval is the mean subtracted by M. So it is 4.1 - 0.07 = 4.03 pounds

The upper end of the interval is the mean added to M. So it is 4.1 + 0.07 = 4.17 pounds

Rounded to one decimal place

The 80% confidence interval for the mean consumption of meat among people over age 23 is between 4 and 4.2 pounds.

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Answer:

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60 plus 40 equals 100 points which is the amount of points the test is worth as stated i the question.

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