3 years ago

Graph the soulution set of 2x+y>6

Mathematics

1 answer:

koban [17]3 years ago

8 0

I hope this has helped you

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Write the improper fraction as a mixed number or a whole number 13/4

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13/4 would be 3 1/4. this is because 4 can go into 13 3 times leaving 1/4 left over. hence making it a mixed number. as a whole number it would be 3.25 because 4 can go into 13 3 times and 1/4 is .25, hope this helps!:)

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2 years ago

One equation in a system of equations is y = 3/4x - 1. For which second equation would the system have exactly one solution? cho

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Answer:

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Step-by-step explanation:

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2 years ago

A realtor collects the data set given in DS 12.2.4 concerning the sizes of a random selection of newly constructed houses in a c

Yuliya22 [10]

The table is missing in the question. The table is attached below.

Solution :

Let X = appraised value

Y = area (square feet)

The regression line is given by :

$\hat y = b_0+b_1X$

$b_1=\frac{n\sum XY-\sum X \sum Y}{n \sum X^2-(\sum X)^2}$

$=\frac{15(5964990)-(2157)(33370)}{15(404799)-(2157)^2}$

$=12.3267$

$b_0=\frac{\sum Y}{n}-b_1\frac{\sum X}{n}$

$=\frac{33370}{15}-\left(12.3267 \times \frac{2157}{15}\right)$

$b_0=452.0841$

The regression line is :

$\hat Y = 452.0841+12.3267 X$

To estimate the error variance, we have:

Error variance, $\sigma =\sqrt{\frac{\sum (Y-\hat Y)^2}n-2{}}$

$=\sqrt{\frac{587682.3}{15-2}}$

$=212.6178$

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2 years ago

Are the graphs of −5y=2x+3 and y=25x+4 parallel, perpendicular, or neither?

saw5 [17]

Parallel graphs have the same slope. perpendicular has opposite reciprocal slopes. These equations have slopes of -2/5 and 25 so they are neither.

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3 years ago

The following integers represent several dives of a submarine: -270 feet, -418 feet, -572 feet, -372 feet, -639 feet and -455 fe

sveticcg [70]

The answer is -270 because its closer to 0 than any other numbers

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2 years ago