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3 years ago

Under which transformation can the image be a different size than the original

Mathematics

1 answer:

Art [367]3 years ago

5 0

C. Dilation.

Dilation can resize the image.

Translation will shift the imagine's position but won't change its actual size.

Rotation will mangle with image's orientation but also won't change its size.

Reflection is just a type of rotation which as established, also won't change its size.

Hope this helps.

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From the street, you drive down 6 levels in a parking garage. When you leave, you drive back up 6 levels. Which expression repre

oksian1 [2.3K]

Answer:

1.)

Step-by-step explanation:

When driving downwards, that is negative because you are subtracting. Then, when driving upwards, you are adding.

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3 years ago

Your electric bill has been as follows for the past six months:

kakasveta [241]

You want to find the monthly average over the past 6 months.

July: $78.56

August: $30.21

September: $81.20

October: $79.08

November: $66.18

December: $100.75

Add all of these up

(July) $78.56

(August) $30.21

(September) $81.20

(October) $79.08

(November) $66.18

(December) + $100.75

----------------------------------------------

(Total cost) $435.88

There are 6 months you are calculating for, therefore divide the total (combined) cost of 6 months with the total number of months (in this case, 6)

$435.88 (total cost of 6 months) ÷ 6 (months)

The average cost per month of over the past 6 months is $72.66.

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4 years ago

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Simplify the product using FOIL (3x+4) (2x-6)

____ [38]

(3x+4) (2x-6)
6x-18x+4x-24
6x^{2} -14-24

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3 years ago

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Calculating the degrees of freedom, the sample variance, and the estimated standard error for evaluations using the t statistic

Yuliya22 [10]

Answer:

a) For the first part we have a sample of n =10 and we want to find the degrees of freedom, and we can use the following formula:

$df = n-1= 10-1=9$

d.9

b) $s^2 = \frac{SS}{n-1}= \frac{600}{41-1}= 15$

a.15

c) For this case we have the sample size n = 25 and the sample variance is $s^2 =400$ , the standard error can founded with this formula:

$SE = \frac{s^2}{\sqrt{n}}= \frac{400}{\sqrt{25}}= 80$

Step-by-step explanation:

Part a

For the first part we have a sample of n =10 and we want to find the degrees of freedom, and we can use the following formula:

$df = n-1= 10-1=9$

d.9

Part b

From a sample we know that n=41 and SS= 600, where SS represent the sum of quares given by:

$SS = \sum_{i=1}^n (X_i -\bar X)^2$

And the sample variance for this case can be calculated from this formula:

$s^2 = \frac{SS}{n-1}= \frac{600}{41-1}= 15$

a.15

Part c

For this case we have the sample size n = 25 and the sample variance is $s^2 =400$ , the standard error can founded with this formula:

$SE = \frac{s^2}{\sqrt{n}}= \frac{400}{\sqrt{25}}= 80$

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3 years ago

Is 445,760 divisible by 6?<br><br> HELP ME PLZ!

aivan3 [116]

Answer:

no because a decimal occurs

Step-by-step explanation:

445,760/6 = 74293.3333333

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3 years ago

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