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4 years ago

Tell whether the triangle with the given side lengths is a right triangle.

Mathematics

1 answer:

Sidana [21]4 years ago

7 0

Answer:

Step-by-step explanation:

7²+24²=49+576=625=25²≠26²

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3 years ago

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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 :

$\hat y = b_0+b_1X$

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

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

$=12.3267$

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

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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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3 years ago

How do you graph for the function Y= -x+1

Tanzania [10]

-x = -1. Anything “X” equals to the number One. So do Y = -1 + 1.

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3 years ago

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Describe each Locus

eduard

Explanation:

1. The set of points 5 cm from the nearest point on a circle of radius 2 cm will be a circle with a radius 5 cm larger: a circle with a radius of 7 cm.

2. The set of points 6 in from the nearest point on a line will be a cylindrical shell 12 inches in diameter centered on the line.

If AB is a line segment, then the shell will have hollow hemispherical ends of radius 6 inches about the end points.

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3 years ago

Which represents the solution set of 5(x+5) < 857

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Answer:

Step-by-step explanation:

x < 12

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3 years ago