3 years ago

Evaluate when x = 9, y = 144, and z = 16

Mathematics

1 answer:

Katyanochek1 [597]3 years ago

5 0

Answer: Should be 163

Step-by-step explanation: Substitute the value of the variable into the expression and simplify.

163

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Find the area of the rectangle.<br> (8x + 5) yards<br> (8x - 5) yards

Zepler [3.9K]

Answer:

48x-5

Step-by-step explanation:

multiply

5*8x

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8x+40x-5

combine like term

48x-5

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1 year ago

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Shalnov [3]

Answer:d

Step-by-step explanation:

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3 years ago

there are eight girls competing in an ice skating competition,in how many ways can they finish in first,second, and third place?

Andreas93 [3]

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3 years ago

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An SRS of size 20 is drawn from a population that has a normal distribution. The sample has a mean of 122.5 and a standard devia

Tems11 [23]

Answer:

The value is $\sigma_{\= x} = 1.789$

Step-by-step explanation:

From the question we are told that

The sample size is n = 20

The sample mean is $\= x = 122.5$

The standard deviation is $s = 8$

Generally the standard error of the mean is mathematically represented as

$\sigma_{\= x} = \frac{s}{\sqrt{n} }$

=> $\sigma_{\= x} = \frac{8}{\sqrt{20 } }$

=> $\sigma_{\= x} = 1.789$

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3 years ago

write the slope-intercept form of the line that passes through the point (1,0) and is parallel to x-y=7. type your answer in the

Brilliant_brown [7]

Parallel lines have the same slope but different y intercepts.
turn x-y=7 into slope intercept form by isolating y which would be -y=-x+7
divide the equation by -1 in order to make y positive and you get y=x-7
So rewrite the equation with the same slope but this time solving for b
y=x+b
plug in your coordinates
0=1+b
subtract 1 from both sides
-1=b
so your equation would be
y=x-1

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2 years ago

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