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Gre4nikov [31]
2 years ago
11

Which pairs of polygons are congruent?​

Mathematics
2 answers:
Nadya [2.5K]2 years ago
7 0
I Say C But If It’s Wrong Sorry
allochka39001 [22]2 years ago
7 0
Yea pretty sure c!!!!
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It’s the first answer. The function is y = x*2
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3 years ago
If your car gets 28 miles per​ gallon, how much does it cost to drive 350 miles when gasoline costs ​$2.50 per​ gallon?
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3 0
3 years ago
A researcher surveyed 150 high school students and found that 68% played a musical insturment. What would be a reasonable range
maria [59]

Answer:

The reasonable range for the population mean is (61%, 75%).

Step-by-step explanation:

The interval estimate of a population parameter is an interval of values that consist of the values within which the true value of the parameter lies with a certain probability.

The mean of the sampling distribution of sample proportion is, \hat p.

One of the best interval estimate of population proportion is the 95% confidence interval for proportion,

CI=\hat p \pm z_{\alpha/2}\sqrt{\frac{\hat p(1-\hat p)}{n}}

Given:

n = 150

\hat p = 0.68

The critical value of <em>z</em> for 95% confidence level is:

z_{\alpha/2}=z_{0.05/2}=z_{0.025}=1.96

Compute the 95% confidence interval for proportion as follows:

CI=\hat p \pm z_{\alpha/2}\sqrt{\frac{\hat p(1-\hat p)}{n}}

     =0.68\pm1.96\sqrt{\frac{0.68(1-0.68)}{150}}\\\\=0.68\pm 0.0747\\\\=(0.6053, 0.7547)\\\\\approx (0.61, 0.75)

Thus, the reasonable range for the population mean is (61%, 75%).

5 0
3 years ago
Solve the Quadratic Equation . Show all of your work for full credit. 4x^2− 2x − 5= 0
max2010maxim [7]
Hope this helps! Don’t mind the part I crossed off.

8 0
3 years ago
Read 2 more answers
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Answer:

The distance among those points is 5 units

Step-by-step explanation:

See the picture please

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