55:39 How is the product of 3 and 2 shown on a number line?

poizon [28]

$-17xy+5x-(-25xy)-5x=-17xy+5x+25xy-5x\\\\\text{combine like terms}\\\\=(-17xy+25xy)+(5x-5x)=8xy$

3 0

3 years ago

A model is made of an airplane is 48 ft long and the model is 36 inches long what is the ratio of the length of the model to the

Leno4ka [110]

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5 0

3 years ago

A researcher wants to estimate the mean commute time of residents in Westchester County. The researcher samples 40 commuters and

Ksenya-84 [330]

Answer:

21.759

Step-by-step explanation:

Given that :

Mean (m) = 25

Standard deviation (s) = 12.5

Sample size (n) = 40

α = 90%

The confidence interval is obtained using the relation:

Mean ± Zcritical * s/sqrt(n)

Zcritical at 90% confidence interval = 1.64

25 ± 1.64 * (12.5/sqrt(40))

Lower boundary : 25 - 1.64(1.9764235) = 21.75866546

Upper boundary : 25 + 1.64(1.9764235) = 28.24133454

(21.759, 28.241)

Hence, lower bound of confidence interval is : 21.759

4 0

3 years ago

How do you divide 270 into 3000

chubhunter [2.5K]

3000
/ 270
______
11.111111111111111111111111r

r = reoccurring

4 0

3 years ago

What is the Domain of the given graph? (0,2) (-3,0)

MrRissso [65]

Answer:

dssds 8900

Step-by-step explanation:

dwdwdmunayaynd

7 0

3 years ago

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