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3 years ago

5

When finding the margin of error for the mean of a normally distributed population from a sample, what is the critical probabili

ty, assuming a confidence level of 86%? 0.14 0.86 0.93 0.99]?

2 answers:

Tju [1.3M]3 years ago

6 0

C. is the answer ( just took the quiz)

sergiy2304 [10]3 years ago

4 0

C. 0.93 I just toke the test

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What is f(g(13))?<br> 16<br> 26<br> 32<br> Undefined

igor_vitrenko [27]

Answer:

32

Step-by-step explanation:

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Mark my answer as brainliest answerer please?

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3 years ago

Read 2 more answers

12 is 25% of what number using a ratio table

Contact [7]

% means 'parts out of 100' so
25%=25/100

is 12 is 25 parts out of 100 of a number
so 12=(25/100)x
25/100 simplifies to 1/4
or if 12=(1/4)x
we multiply both sides by 4 and get
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3 years ago

A solid metal sphere of radius 32cm is melted down and recast to make 64 identical small spheres.what will be the radius of each

zhuklara [117]

$V_1=\frac{4}{3}\pi R^3\\\\R=32cm\\\\V_1=\frac{4}{3}\pi\cdot32^3=\frac{131072}{3}\pi\ (cm^3)\\\\V_2=V_1:64\\\\V_2=\frac{131072}{64}\pi:64=\frac{131072}{3}\pi\cdot\frac{1}{64}=\frac{2048}{3}\pi\ (cm^3)\\\\r=?\\\\V_2=\frac{4}{3}\pi r^3$

$\frac{4}{3}\pi r^3=\frac{2048}{3}\pi\ \ \ /:\pi\\\\\frac{4}{3}r^3=\frac{2048}{3}\ \ \ /\cdot\frac{3}{4}\\\\r^3=512\\\\r=\sqrt[3]{512}\\\\r=8\ (cm)\leftarrow answer$

6 0

3 years ago

O(d)'?<br> Which expression is equivalent to

padilas [110]

Answer:

<h2><em><u>2nd</u></em><em><u> </u></em><em><u>Option</u></em><em><u>:</u></em></h2>

$\frac{1}{ {a}^{42} }$

Step-by-step explanation:

${( {r}^{ - 7}) }^{6}$

<em><u>Since</u></em><em><u>,</u></em>

${( {a}^{x}) }^{y} = {a}^{xy}$

<em><u>Then</u></em><em><u>,</u></em>

$= {r}^{ (- 7 \times 6)} = {r}^{ - 42}$

<em><u>Since</u></em><em><u>,</u></em>

${a}^{ - 1} = \frac{1}{a}$

<em><u>Then</u></em><em><u>,</u></em>

$= {r}^{ - 42} = \frac{1}{ {r}^{42} }$

<em><u>Therefore</u></em><em><u>, </u></em>

<em><u>2nd</u></em><em><u> </u></em><em><u>Option</u></em><em><u> </u></em><em><u>is</u></em><em><u> </u></em><em><u>correct</u></em><em><u>. </u></em>

5 0

3 years ago

What is the answer to this question?

Vlad1618 [11]

Answer:

4.5ft

Step-by-step explanation:

The correct answer is A to this question.

Width: 11/2ft

Length: 2ft

Height: 11/2ft

Formula: L*W*H

Hope this helps.

3 0

3 years ago