3 years ago

Which equation is equivalent to y=x^2+6x+7

Mathematics

1 answer:

mr_godi [17]3 years ago

4 0

Answer:

Step-by-step explanation:

Not sure

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Complete the chart to find the mean, variance, and standard deviation. Remember to use commas and round numbers to the nearest t

vitfil [10]

Answer: The mean of the data is 433.75, variance of the data is 99667.19 and the standard deviation of the data is 315.7011.

Explanation:

The given data is 900, 35, 500 and 300.

The number of observation is 4.

Formula of mean is,

$\text{Mean}=\frac{\text{Sum of observations}}{\text{Number of observations}}$

$\bar{X}=\frac{900+35+50+300}{4} =433.75$

The formula of variance is given below,

$\sigma^2=\frac{1}{n}\sum{(X-\bar{X})^2}$

$\sigma^2=\frac{398668.75}{4}$

$\sigma^2=99667.19$

The variance of the data is 99667.19

$\sigma=\sqrt{99667.19}$

$\sigma=315.7011$

The standard deviation of the data is 315.7011.

The other information or values of given chart is shown in the attached table.

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Marisa is building a bookstand with a triangular base. If two angles of the triangular base measure 75° and 35°, what is the mea

Georgia [21]

Answer:

A. 70

Step-by-step explanation:

a triangle has a sum of 180 degrees so you have to add 75 and 35 and you will get 110 and then you subtract 110 for 180 and you get 70

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4 groups of 5 hundredths

natka813 [3]

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16 and one forth evaluated

MariettaO [177]

16 1/4
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Tthe tempature in the morning was -3 degrees if it rose 8 degrees before lunch what was the temperature at the linch time

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Answer:

it rose to 5 degrees

Step-by-step explanation:

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