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3 years ago

Defined by distinct lines which intersect at right angles and at exactly one point.

Mathematics

1 answer:

Fantom [35]3 years ago

3 0

Is the correct answer welcome

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Use technology and the given confidence level and sample data to find the confidence interval for the population mean mu. Assume

Sphinxa [80]

Answer: (1.55, 6.45)

Step-by-step explanation:

The confidence interval for population mean is given by :-

$\overline\ {x}\pm\ z_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}$

Given : Significance level : $\alpha: 1-0.99=0.01$

Critical value : $z_{\alpha/2}=2.576$

Sample size : n=41

Sample mean : $\overline{x}=4.0\text{ kg}$

Standard deviation : $\sigma=6.1\text{ kg}$

Then, 99% confidence interval for population mean will be :_

$4\pm\ (2.576)\dfrac{6.1}{\sqrt{41}}\\\\\approx4\pm2.45\\\\=(4-2.45, 4+2.45)=(1.55, 6.45)$

8 0

4 years ago

Which of the following expressions represent 15% tip on a $20 meal? Which represents the total bill? **Select all that apply**.

kifflom [539]

Answer:

15/100 * 20, because the meal is 20 dollars and to find the percent of something you divide it with 100 so you will divide 15 with 100 and you’ll get 0.15. Then you will times it with the amount the meal cost because thats the charge. So 0.15•20 and you’ll get $3. A 15% tip for a $20 meal is $3.

4 0

3 years ago

G = { liquid, solid, gases} what type

ruslelena [56]

Answer:

Step-by-step explanation:

I think it’s b…

5 0

3 years ago

What is the correct set of data for the stemplot? The stemplot below represents the number of bite-size snacks grabbed by 10 stu

STatiana [176]

Answer:

C. 15, 16, 16, 17, 19, 20, 21, 23, 32, 42.

Step-by-step explanation:

Using the key: 2|4 = 24, the following are the set of data represented by the stem-and-leaf plot showing:

Row one, 1| 5 6 6 7 9:

This means there are 5 data set for the first row which are:

15, 16, 16, 17, 19

Row two, 2|0 1 3:

There are 3 data here, which are:

20, 21, 23

Row 3, 3|2: = 32

Row 4, 4|2: = 42

The correct set of data are 15, 16, 16, 17, 19, 20, 21, 23, 32, 42.

Correct option is C.

6 0

3 years ago

Help me please i don't have enough time to figure it out

vladimir2022 [97]

So you have those 2 rectangular prisms and the measurements are already given
Length x width x height = volume of a rectangular prism

11x10x22 = 2,420 cubic feet (the larger object)
7x4x10 = 280 cubic feet (the smaller object)
Add the 2 numbers together to get the volume of the whole figure which would be

2,700 cubic feet

4 0

3 years ago