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3 years ago

10

Simplify the cube root in simplest radical form. 9x374 Please help

1 answer:

algol [13]3 years ago

6 0

Answer:

D. $xy\sqrt[3]{9y}$

Step-by-step explanation:

$\sqrt[3]{9x^3y^4}$

$\sqrt[3]{9}\sqrt[3]{x^3}\sqrt[3]{y^4}$

The $\sqrt[3]{x^3}$ cancels out to become x:

$\sqrt[3]{9}x\sqrt[3]{y^4}$

Split the $y^4=y*y^3$

$\sqrt[3]{9}x\sqrt[3]{y^3}\sqrt[3]{y^1}$

$\sqrt[3]{y^3} =y$

$xy\sqrt[3]{9} \sqrt[3]{y}$

Put the cube root of y and cube root of 9 together:

$xy\sqrt[3]{9y}$

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A huge ice glacier in the Himalayas initially covered an area of 454545 square kilometers. Because of changing weather patterns,

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Now we will switch sides:

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Let us take natural log on both sides of equation.

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$-0.05t\cdot \text{ln}(e)=\text{ln}(\frac{1}{3})$

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$-0.05t=\text{ln}(\frac{1}{3})$

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3 years ago

The following data give the prices of seven textbooks randomly selected from a university bookstore.

swat32

Answer:

a) Mean = $121

Sum of deviations = $0

b) Standard deviation = 41.19

Variance = 1696.67

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Step-by-step explanation:

We are given the following data:

$91 , $176 , $108 , $115 , $56 , $157 , $144

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$Mean = \displaystyle\frac{\text{Sum of all observations}}{\text{Total number of observation}}$

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b) range, variance, and standard deviation

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where $x_i$ are data points, $\bar{x}$ is the mean and n is the number of observations.

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Range = Maximum - Minimum

Range = 176 - 56 = 120

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