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3 years ago

Which set of three angles could represent the interior angles of a triangle?

Mathematics

2 answers:

timofeeve [1]3 years ago

7 0

C would be the correct answer

Natasha2012 [34]3 years ago

5 0

Answer: B

Step-by-step explanation:

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Gap sells jeans that cost $21.00 for a selling price of $29.95. The percent of markup based on cost is

9966 [12]

If Gap sells jeans that cost $21.00 for selling price of $29.95. The percent of markup based on cost is approximately 43%. The markup in price is exactly $8.95.

3 0

3 years ago

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Complete the equation describing how x and y are related.

Sav [38]

Answer: The "?" would equal 1.

Step-by-step explanation: This is simply a line with a slope of 1 and a y-intercept of zero.

5 0

3 years ago

The amount of lateral expansion (mils) was determined for a sample of n = 8 pulsed-power gas metal arc welds used in LNG ship co

Alona [7]

Answer:

95% Confidence interval for the variance:

$3.6511\leq \sigma^2\leq 34.5972$

95% Confidence interval for the standard deviation:

$1.9108\leq \sigma \leq 5.8819$

Step-by-step explanation:

We have to calculate a 95% confidence interval for the standard deviation σ and the variance σ².

The sample, of size n=8, has a standard deviation of s=2.89 miles.

Then, the variance of the sample is

$s^2=2.89^2=8.3521$

The confidence interval for the variance is:

$\dfrac{ (n - 1) s^2}{ \chi_{\alpha/2}^2} \leq \sigma^2 \leq \dfrac{ (n - 1) s^2}{\chi_{1-\alpha/2}^2}$

The critical values for the Chi-square distribution for a 95% confidence (α=0.05) interval are:

$\chi_{0.025}=1.6899\\\\\chi_{0.975}=16.0128$

Then, the confidence interval can be calculated as:

$\dfrac{ (8 - 1) 8.3521}{ 16.0128} \leq \sigma^2 \leq \dfrac{ (8 - 1) 8.3521}{1.6899}\\\\\\3.6511\leq \sigma^2\leq 34.5972$

If we calculate the square root for each bound we will have the confidence interval for the standard deviation:

$\sqrt{3.6511}\leq \sigma\leq \sqrt{34.5972}\\\\\\1.9108\leq \sigma \leq 5.8819$

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3 years ago

What is the sum of the measures of the measures of the exterior angles of this triangle?

mylen [45]

Answer:

The sum of the exterior angles is 360 degrees.

7 0

3 years ago

A box contains twenty cards numbered 1 through 20. One card is to be randomly drawn from the box.

Crank

C.7/20
Hope i helped
let me know if i did not

3 0

4 years ago

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