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Irina-Kira [14]
2 years ago
14

Please help me asap with number 20 and explain please

Mathematics
1 answer:
kow [346]2 years ago
6 0

Answer:

c

Step-by-step explanation:

because it is increasing exponentially

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find the margin of error to use for this sample mean sushi based on a sample of 35 people he average out of pieces of sushi a pe
NNADVOKAT [17]

Answer:

{13.7756,18.2244}

Step-by-step explanation:

Given the sample size, the margin of error can be calculated with the formula M=Z*\frac{\sigma}{\sqrt{n}} where Z is the critical value for the desired confidence level, σ is the population standard deviation, and n is the sample size. Therefore, our margin of error for a 90% confidence level is:

M=Z*\frac{\sigma}{\sqrt{n}}=1.645*(\frac{8}{\sqrt{35}})=2.2244

The formula for a confidence interval is CI=\bar{x}+M where x-bar is the sample mean. Therefore, the 90% confidence interval for the mean amount of sushi pieces a person can eat is:

CI=\bar{x}\pm[M]=16\pm2.2244={13.7756,18.2244}

Therefore, we are 90% confident that the true mean amount of sushi pieces a person can eat is contained within the interval {13.7756,18.2244}

7 0
3 years ago
How many lines of symmetry doesn’t a regular polygon with 32 sides have?
notsponge [240]

A regular polygon of "n" sides has "n" Lines of Symmetry

so a regular 32 sided polygon has 32 lines of symmetry

7 0
3 years ago
Read 2 more answers
A car starts a journey with a full tank of gas. The equation y=16 - 0.05x relates the number of gallons of gas, y, left in the t
mr_godi [17]

A.  The y-intercept is y = −0.05 x + 16 and the x-intercept is x = −20y + 320

B. The x-intercept represents the number of miles the car has traveled.

C. The y-intercept represents the number of gas in gallons.

4 0
3 years ago
The number of Smart TVs owned by residents in Picayune increased by 25% this year. Assuming that the 824 Smart
masha68 [24]

Answer:

25% of 824

25/100 × 824

206

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824+206= 1030

6 0
2 years ago
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12 to 16 pounds Im not very good at math but I hope this helps 
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3 years ago
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