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3 years ago

Please help! WILL MARK BRAINLIEST

Mathematics

2 answers:

pishuonlain [190]3 years ago

7 0

Answer:

1 1/9 ft^3

Step-by-step explanation:

5/3*1*2/3=10/9*1=10/9

10/9=1 1/9

Nimfa-mama [501]3 years ago

5 0

Answer:

2nd option is correct

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PLEASE HELP, 50 POINTS! This is a triangle investigation.

mylen [45]

A) they fornite a right angle and 2 acute angles(not 100% sure of what the Questions is asking)

B) they appear to form a triangle

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B)

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3 years ago

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What is the angle in the diagram below?

marishachu [46]

Answer:

148°

Step-by-step explanation:

x = 180 - 32 = 148°

(Supplementary angles)

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3 years ago

111=13, 113=35, 115=57, 117=?

Elden [556K]

In the pattern, the values are increasing by 22 each time so for the 117th term you take 57 + 22 = 79

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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 equation of a line that passes through (6,3) and has a slope of -2/3

goldenfox [79]

Answer:

y=mx+b = 3y=6x+-2/3

Step-by-step explanation:

hope this is better

6 0

3 years ago