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Gre4nikov [31]
3 years ago
8

In the regression equation, what does the letter "b" represent? Select one:

Mathematics
1 answer:
dedylja [7]3 years ago
5 0

Answer:

b. The slope of the line

Step-by-step explanation:

To explain the question statement, first we view the pattern of regression of equation which is

Y=a+bx

Where Y is dependent variable and x is an independent variable.

a represents the Y-intercept and depicts the value of dependent variable y when independent variable x=0. b represents the slope in the regression equation and interpreted as unit change in dependent variable Y due to unit change in independent variable X.

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There are 2.5 centimeters in an inch. If a paperclip is 1.5 inches long, how many centimeters long is the paperclip?
Alex_Xolod [135]
For the answer to the question if t<span>here are 2.5 centimeters in an inch and if a paperclip is 1.5 inches long, how many centimeters long is the paperclip.

The answer to this question is the paperclip is </span> 3.81 cm long.

I hope my answer helped you. Have a nice day!
6 0
2 years ago
PLZ HELP MEEEE!!
arsen [322]

Answer:

42x+6y>24

Step-by-step explanation: im sorry if i am wrong but i belive that is correct

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2 years ago
Use the given transformation x=4u, y=3v to evaluate the integral. ∬r4x2 da, where r is the region bounded by the ellipse x216 y2
exis [7]

The Jacobian for this transformation is

J = \begin{bmatrix} x_u & x_v \\ y_u & y_v \end{bmatrix} = \begin{bmatrix} 4 & 0 \\ 0 & 3 \end{bmatrix}

with determinant |J| = 12, hence the area element becomes

dA = dx\,dy = 12 \, du\,dv

Then the integral becomes

\displaystyle \iint_{R'} 4x^2 \, dA = 768 \iint_R u^2 \, du \, dv

where R' is the unit circle,

\dfrac{x^2}{16} + \dfrac{y^2}9 = \dfrac{(4u^2)}{16} + \dfrac{(3v)^2}9 = u^2 + v^2 = 1

so that

\displaystyle 768 \iint_R u^2 \, du \, dv = 768 \int_{-1}^1 \int_{-\sqrt{1-v^2}}^{\sqrt{1-v^2}} u^2 \, du \, dv

Now you could evaluate the integral as-is, but it's really much easier to do if we convert to polar coordinates.

\begin{cases} u = r\cos(\theta) \\ v = r\sin(\theta) \\ u^2+v^2 = r^2\\ du\,dv = r\,dr\,d\theta\end{cases}

Then

\displaystyle 768 \int_{-1}^1 \int_{-\sqrt{1-v^2}}^{\sqrt{1-v^2}} u^2\,du\,dv = 768 \int_0^{2\pi} \int_0^1 (r\cos(\theta))^2 r\,dr\,d\theta \\\\ ~~~~~~~~~~~~ = 768 \left(\int_0^{2\pi} \cos^2(\theta)\,d\theta\right) \left(\int_0^1 r^3\,dr\right) = \boxed{192\pi}

3 0
2 years ago
Translate and solve: 47% of 312 is what number? Round to the nearest tenth.
Svetradugi [14.3K]

Answer:

146.6

Step-by-step explanation:

0.47 * 312=146.64 when rounded to the nearest tenth that = 146.6

8 0
3 years ago
Sally will measure the length of a wall in both centimeters and meters. Will there be fewer centimeters or fewer meters? Explain
harkovskaia [24]
There would be fewer meter. Since 1 m=100 cm.
6 0
3 years ago
Read 2 more answers
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