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3 years ago

Find the length of a square with an area of 169 in2.

Mathematics

1 answer:

mrs_skeptik [129]3 years ago

6 0

Find the length of a side of a square with an area of 169 in^2.

Answer:

D. 13 in

Step-by-step explanation:

A square has sides of equal length.

A = L^2 where: A = area and L = side

L^2 = 169

L=√169

L=13 in^2.

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Find the sample standard deviation of the following data set, using the statistical functions on your calculator.0.2315 0.4725 0

Nonamiya [84]

Answer:

Option C) 0.2358

Step-by-step explanation:

We are given the following data set:

0.23105, 0.4725, 0.8765, 0.4865, 0.5326, 0.7976

Formula:

$\text{Standard Deviation} = \sqrt{\displaystyle\frac{\sum (x_i -\bar{x})^2}{n-1}}$

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

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

$Mean =\displaystyle\frac{3.39675}{6} = 0.566125$

Sum of squares of differences = 0.1122752556 + 0.008765640625 + 0.09633264063 + 0.006340140625 + 0.001123925625 + 0.05358067562 = 0.2784182787

$S.D = \sqrt{\frac{0.2784182787}{5}} = 0.2358$

Thus, the standard deviation for given data is

Option C) 0.2358

7 0

2 years ago

150% of what number is 60?

castortr0y [4]

Th answer would be 40:)

5 0

3 years ago

Molly has five cupcakes jack has teo rhey combinde rhat what do they get

inessss [21]

They have seven cup cakes!

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2 years ago

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What is the inverse operation of division?

Step2247 [10]

Answer:

multiplication

7 0

2 years ago

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What is the average rate of change for this exponential function for the

zhannawk [14.2K]

Answer:

1.5

Step-by-step explanation:

The average rate of change is 1.5

when x=0 , the value of y =1

when x=2 the value of y = 4

<em>average rate of change formula = </em> $\frac{f(b)-f(a)}{b-a}$

a= 0 , f(a)=1

b=2, f(b)= 4

4 - 1 / 2 - 0 = 3/2 = 1.5

6 0

1 year ago