3 years ago

What is a geometric solid

1 answer:

4 0

A geometric solid is another name for the traditional 3-dimensional object with 3 dimensions: width, length, and height.

Some examples of a geometric solid include cubes and triangular prisms.

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Ou are trying to estimate the average amount a family spends on food during a year. In the past, the standard deviation of the a

MA_775_DIABLO [31]

Answer:

The answer is "2653".

Step-by-step explanation:

$Sample \ Size = 99\% \ Cl\\\\ E =60 \\\\\sigma= 1200\\\\$

Minimum sample size for Cl level $= 99\%$ and Desired Margin of Error, $E = 60$ is:

$\to P(|\bar{x}-\mu| < E) \geq 1-\alpha \\\\\to P(\frac{\bar{x}-\mu}{\frac{\sigma}{\sqrt{n}}}$

$Margin \ Error = \frac{\text{length of the CI}}{2}\\\\\sigma=1200\\\\\alpha=1 - Confidence =1-0.99=0.01\\\\Z_{\frac{\alpha}{2}}=z_{0.005}=2.58\\\\n\geq (\frac{z_{0.005} \times \sigma }{E})^2 \\\\= (\frac{2.58 \times 1200 }{60})^2\\\\=2662.560\\$

The minimum n has to be integer, we take the ceiling Of above number and get n = 2663

The exact z-value.

$n \geq (\frac{2.5758293035489 \times 1200}{60})^2 \\\\= 2653.95864$

using critical value of 2,575, which gives 2652.25

$\to n =2653$

5 0

3 years ago

Solve for x. −1/2(x 2) 1 1/2x=3

AlekseyPX

-1/2(x + 2) + 1 + 1/2 x = 3
-1/2 x - 1 + 1 + 1/2 x = 3
0 = 3

x has no solution.

4 0

4 years ago

HELPDetermine the equation of the line shown in the graph:y = −1y = 0x = −1x = 0

astra-53 [7]

in this problem we have a vertical line

The equation of a vertical line is equal to the x-coordinate of the point that passes through it

in this case

the equation of the line is

x=-1

8 0

1 year ago

Simplify the expression.

zalisa [80]

If I'm not mistaken I believe the answer is 54

7 0

3 years ago

Read 2 more answers

Mrs Richards buys 8 quarts of milk in 4 days .How many gallons of milk does she buy?

vazorg [7]

Answer: 2 gallons

Step-by-step explanation:

1 gallon = 4 quarts

8 divided by 4= 2

5 0

4 years ago

Read 2 more answers

What is a geometric solid​

What is a geometric solid