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dusya [7]
2 years ago
10

What is 5 plus 6 minus 9

Mathematics
1 answer:
kap26 [50]2 years ago
8 0
5+6 is 11 and 11-9 is 2
and also
6-9 is -3 and -3+5 is 2
so it is 2
You might be interested in
How 7,5,6 and 3 equal 75
____ [38]
Well first you do 7+5 to equal 12, and then you multiply 12 by 6 and get 72, then you add the 3 to get 75. 6(7+5)+3=75. Hope this helps!!
4 0
3 years ago
"You measure 34 dogs' weights, and find they have a mean weight of 67 ounces. Assume the population standard deviation is 13.5 o
liraira [26]

Answer:

The 95% confidence interval for the true population mean dog weight is between 62.46 ounces and 71.54 ounces.

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{1-0.95}{2} = 0.025

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 1-0.025 = 0.975, so z = 1.96

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 = 1.96*\frac{13.5}{\sqrt{34}} = 4.54

The lower end of the interval is the sample mean subtracted by M. So it is 67 - 4.54 = 62.46 ounches.

The upper end of the interval is the sample mean added to M. So it is 67 + 4.54 = 71.54 ounces.

The 95% confidence interval for the true population mean dog weight is between 62.46 ounces and 71.54 ounces.

7 0
3 years ago
For 33 hrs of work you are paid 252.45 how much would you receive for 36 hours
poizon [28]
For 33 Hours, It is = $252.45

Now, for 1 Hour, It is 252.45 / 33 = 7.65

Now, For 36 hours, It would be: 7.65 * 36 = 275.4

In short, Your Answer would be: $275.4

Hope this helps!
3 0
3 years ago
Please help and thannks
blsea [12.9K]

Answer:

745

Step-by-step explanation:

3 0
3 years ago
The tuition costs, C, for a local community college are modeled by C(h) = 250 + 200h, where h represents the number of credit ho
3241004551 [841]

Answer:450

Step-by-step explanation:250+200=450

8 0
3 years ago
Read 2 more answers
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