3 years ago

Aşağıda verilen şıklarda istenenleri bulunuz (NOT: sqrt( ): karekök, örneğin sqrt(4)=2 dir, R+: pozitif reel sayılar gösterimi).

Mathematics

1 answer:

Readme [11.4K]3 years ago

7 0

Umm what’s the language

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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 :

$\hat y = b_0+b_1X$

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

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

$=12.3267$

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

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

$b_0=452.0841$

The regression line is :

$\hat Y = 452.0841+12.3267 X$

To estimate the error variance, we have:

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

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

$=212.6178$

8 0

3 years ago

Identify all of the root(s) of g(x) = (x2 + 3x - 4)(x2 - 4x + 29).

RideAnS [48]

Answer:

The answer is 1, -4, 2+5i, 2-5i

Step-by-step explanation:

7 0

3 years ago

Your friend adds 46.7

ozzi

Answer:

The answer is greater than 51

Step-by-step explanation:

46.7 rounds to about 47

5.4 rounds to about 5
47 + 5 = 52
52 > 51

5 0

3 years ago

Read 2 more answers

Find the value of x. Round to the nearest tenth. 26 12 X x = [?]

lukranit [14]

Answer:

x = 10.8

Step-by-step explanation:

cos 26° = x/12

0.8988 = x/12

x = 10.785

7 0

3 years ago

Find the value of x. Then tell whether the side lengths from a Pythagorean triple sides 20,16 find x

Tema [17]

Answer:

x = 12

Step-by-step explanation:

Pythagorean triplet

12,16,20

So, the value of x is 12

x + 256 = 400

x = 400 - 256

x = 144

The square of 12 is 144

6 0

2 years ago