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2 years ago

What’s the slope of the following graph?

Mathematics

1 answer:

nadezda [96]2 years ago

7 0

The slope of a straight line which is parallel to X axis is always equal to 0 (zero).

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Brainliest, Order from least to greatest -9, 12, -15, -1,6

Ira Lisetskai [31]

Answer:

-15, -9, -1, 6, 12

Step-by-step explanation:

Easy, there you go!

Hope this helps!

Brainliest please?!

3 0

3 years ago

Ten engineering schools in the United States were surveyed. The sample contained 250 electrical engineers, 80 being women; 175 c

steposvetlana [31]

Answer:

There is a significant difference between the two proportions.

Step-by-step explanation:

The (1 - α)% confidence interval for difference between population proportions is:

$CI=(\hat p_{1}-\hat p_{2})\pm z_{\alpha/2}\times\sqrt{\frac{\hat p_{1}(1-\hat p_{1})}{n_{1}}+\frac{\hat p_{2}(1-\hat p_{2})}{n_{2}}}$

Compute the sample proportions as follows:

$\hat p_{1}=\frac{80}{250}=0.32\\\\\hat p_{2}=\frac{40}{175}=0.23$

The critical value of z for 90% confidence interval is:

$z_{0.10/2}=z_{0.05}=1.645$

Compute a 90% confidence interval for the difference between the proportions of women in these two fields of engineering as follows:

$CI=(\hat p_{1}-\hat p_{2})\pm z_{\alpha/2}\times\sqrt{\frac{\hat p_{1}(1-\hat p_{1})}{n_{1}}+\frac{\hat p_{2}(1-\hat p_{2})}{n_{2}}}$

$=(0.32-0.23)\pm 1.645\times\sqrt{\frac{0.32(1-0.32)}{250}+\frac{0.23(1-0.23)}{175}}\\\\=0.09\pm 0.0714\\\\=(0.0186, 0.1614)\\\\\approx (0.02, 0.16)$

There will be no difference between the two proportions if the 90% confidence interval consists of 0.

But the 90% confidence interval does not consists of 0.

Thus, there is a significant difference between the two proportions.

4 0

3 years ago

Is this comparison true 2.29 < 2.129

AURORKA [14]

No.

The value of 2.29 is greater than, not less than, the value 2.129.

2 and 1 are in the same location in each number: the tenths position. 2 is larger than 1 is, and thus 2.29 is larger.

4 0

3 years ago

Read 2 more answers

I have an 88 in my math class, according to my teacher if I get a 75% on my final exam my grade will be 86. my final exam is wha

shusha [124]

Answer:

I think the answer is 30%

8 0

3 years ago

Read 2 more answers

If x = 45, solve for y

Tanzania [10]

Answer:

Step-by-step explanation:

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3 years ago