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musickatia [10]
3 years ago
7

2 – 5 + 4 – 6 – 2 + 12 11 -5 5 1

Mathematics
2 answers:
jeka57 [31]3 years ago
7 0
5 is your answer queen
denpristay [2]3 years ago
3 0

Answer:

C. 5

Step-by-step explanation:

2 - 5 + 4 - 6 - 2 + 12

2 + 4 + 12 - 5 - 6 - 2

18 - 5 - 6 - 2

18 - 13

5

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Can someone help me with this problem please?
luda_lava [24]
You take the 3 squared which is 9 then, you divide that by three then you get 3
4 0
3 years ago
a store sells 14.5- ounces cans of tomatoes for $0.89 each. if the store sells 35 cans one day, how many total ounces of tomatoe
solniwko [45]

Answer:

451.675

Step-by-step explanation:

14.5x35=507.5

507.5x0.89=451.675

4 0
3 years ago
A sports news station wanted to know whether people who live in the North or the South are bigger sports fans. For its study, 17
Free_Kalibri [48]

Using the z-distribution, it is found that the 95% confidence interval for the difference is (-1.3, -0.7).

<h3>What are the mean and the standard error for each sample?</h3>

Considering the data given:

\mu_S = 3.8, n = 175, s_S = \frac{1.7}{\sqrt{175}} = 0.1285

\mu_N = 4.8, n = 152, s_N = \frac{1.2}{\sqrt{152}} = 0.0973

<h3>What is the mean and the standard error for the distribution of differences?</h3>

The mean is the subtraction of the means, hence:

\overline{x} = \mu_S - \mu_N = 3.8 - 4.8 = -1

The standard error is the square root of the sum of the variances of each sample, hence:

s = \sqrt{s_S^2 + s_N^2} = \sqrt{0.1285^2 + 0.0973^2} = 0.1612

<h3>What is the confidence interval?</h3>

It is given by:

\overline{x} \pm zs

We have a 95% confidence interval, hence the critical value is of z = 1.96.

Then, the bounds of the interval are given as follows:

  • \overline{x} - zs = -1 - 1.96(0.1612) = -1.3
  • \overline{x} + zs = -1 + 1.96(0.1612) = -0.7

More can be learned about the z-distribution at brainly.com/question/25890103

#SPJ1

4 0
2 years ago
Wuch equation represents O AB OB. re​
ch4aika [34]

Answer:

The answer that is C

Step-by-step explanation:

The equation would be y=1/2x + 8 because the line touches the y-intercept at +8. The others would be incorrect as the line does not increase by a slop of 8/1 and/or is the y-intercept at -8.

6 0
2 years ago
Can someone help me :(( thank you so so much if u do &lt;33:)
Keith_Richards [23]

Answer:

13

Step-by-step explanation:

8-13=-5

4 0
3 years ago
Read 2 more answers
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