3 years ago

Simplify 6th root of 12 divided by product of cubic root of 2 and square root of 3

Mathematics

1 answer:

Solnce55 [7]3 years ago

6 0

I hope this helps you

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ACT scores have a mean of 20.8 and 9 percent of the scores are above 28. The scores have a distribution that is approximately no

dimaraw [331]

Answer: 5.37

Step-by-step explanation:

Let x = ACT scores.

Given: ACT scores have a mean of 20.8 and 9 percent of the scores are above 28. The scores have a distribution that is approximately normal.

i.e. P(X>28)=0.09 (i)

Now,

$P(X>28)=P(\dfrac{X-\mu}{\sigma}>\dfrac{28-20.8}{\sigma})\\\\= P(z>\dfrac{7.2}{\sigma})\ \ \ \ [z=\dfrac{X-\mu}{\sigma}]$ (ii)

One -tailed z value for p-value of 0.09 =1.3408 [By z-table]

From (i) and (ii)

$\dfrac{7.2}{\sigma}=1.3408\\\\\Rightarrow\ \sigma=\dfrac{7.2}{1.3408}\\\\\Rightarrow\ \sigma=5.37$

Hence, the standard deviation = 5.37

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3 years ago

I need help with this question 1/2 + 2 3/4=?

enyata [817]

Answer:

3.25

Step-by-step explanation:

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3 years ago

How do you use a formula to calculate gradients

gizmo_the_mogwai [7]

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Step-by-step explanation:

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3 years ago

Keelahs clothing store buys coats for $50 and then sells them for $80 what is the percent of mark up on the price of the coat sh

olchik [2.2K]

I don't know if you meant profit or markup but,

take the difference of $80 & $50 = $30

What percent of 50 is 30? It's 3/5 or 60%. So there is a 60% markup on the original price of 50$.

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2 years ago

A box has dimensions of 17 inches long, 1.3 feet wide, and 8 inches high. What is the volume of the box? The formula for the vol

s344n2d4d5 [400]

I hope this helps you

Volume =17×1,3×8

Volume =176,8

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2 years ago