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3 years ago

9

A sample size of n=12 is a simple random sample selected from a normally distributed population. Find the critical value t* corr

esponding to a 95% confidence level (two-sided).

1 answer:

Ugo [173]3 years ago

5 0

Answer:

What are you asking then i can answer

Step-by-step explanation:

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Identify the number that does not belong with the other three. Explain your reasoning.

Nastasia [14]

Answer:

I would say the square root of 48 is the odd one out because it is the only irrational number

All the other numbers can be written as p/q except sqrt 48

8 0

3 years ago

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The ratio of the perimeters of two similar triangles is 4:7. What is the area of each of these triangles if the sum of their are

Mashcka [7]

Answer:

The area of triangles are 16 cm^2 and 49 cm^2

Step-by-step explanation:

we know that

If two figures are similar, the ratio of its perimeters is equal to the scale factor and the ratio of its areas is equal to the scale factor squared

Let

z ----> the scale factor

x ----> the area of the smaller triangle in square centimeters

y ----> the area of the larger triangle in square centimeters

we know that

$z=\frac{4}{7}$

$\frac{x}{y}=z^2$

so

$\frac{x}{y}=(\frac{4}{7})^2$

$\frac{x}{y}=\frac{16}{49}$

$x=\frac{16}{49}y$ -----> equation A

$x+y=65$ ----> equation B

solve the system by substitution

substitute equation A in equation B

$\frac{16}{49}y+y=65$

solve for y

$\frac{65}{49}y=65$

$y=49\ cm^2$

Find the value of x

$x=\frac{16}{49}(49)$

$x=16\ cm^2$

therefore

The area of triangles are 16 cm^2 and 49 cm^2

3 0

4 years ago

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Help me please number 7 (please show work)

astra-53 [7]

Answer:

m<H=30 degrees by the Triangle Sum Theorem, so <H=<V. <G=<U, they are right angles. If GH=UV, triangle FGH=triangle TUV by the ASA.

x=3 and y=8

Step-by-step explanation:

H equals 30 by 180-150=30 (getting 150 by adding 60 and 90)

I know this is not much of a answer, but I hope it helps a little.

http://www.somersetkey.com/ourpages/auto/2017/12/13/63309824/geo%20ch%205%20sec%204%20teach.pdf

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3 years ago

Adam uses count milk for tge dessert the canvas 13cm high and 8cm diameter using formula v=r2h what's the total of milk on the c

bonufazy [111]

If the diameter is 8 centimeters, the radius is 4. We can use the formula $v=r^2h\pi$ and plug in r=4 and h=13 to get $v=16*13*\pi$ , so $v=208\pi$ .

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3 years ago

How to write 5,678,209 in expanded form

irina [24]

Answer: 5,000,000+600,000+70,000+8,000+200+9

Step-by-step explanation:

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4 years ago

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