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Bezzdna [24]
3 years ago
12

What’s 2(a+b) if a=2 and b=3

Mathematics
2 answers:
GalinKa [24]3 years ago
5 0

Answer:

10.

Step-by-step explanation:

2(a+b)

= 2(2+3)

= 2(5)

= 10

Hope this helped!

Lesechka [4]3 years ago
4 0

Answer:

10

Step-by-step explanation:

2(2+3)  FOIL

2x2=4

2x3=6

4+6=10

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What is the answers
LenKa [72]

If x=5 the answer is 0

3 0
3 years ago
Surface integrals using a parametric description. evaluate the surface integral \int \int_{s} f(x,y,z)dS using a parametric desc
DiKsa [7]

You can parameterize S using spherical coordinates by

\vec s(u,v)=\langle6\cos u\sin v,6\sin u\sin v,6\cos v\rangle

with 0\le u\le2\pi and 0\le v\le\frac\pi2.

Take the normal vector to S to be

\dfrac{\partial\vec s}{\partial\vec v}\times\dfrac{\partial\vec s}{\partial\vec u}=36\langle\cos u\sin^2v,\sin u\sin^2v,\cos v\sin v\rangle

(I use \vec s_v\times\vec s_u to avoid negative signs. The orientation of the normal vector doesn't matter for a scalar surface integral; you could just as easily use \vec s_u\times\vec s_v=-(\vec s_v\times\vec s_u).)

Then

f(x,y,z)=f(6\cos u\sin v,6\sin u\sin v,6\cos v)=36\sin^2v

and the integral of f over S is

\displaystyle\iint_Sf(x,y,z)\,\mathrm dS=\int_0^{\pi/2}\int_0^{2\pi}36\sin^2v\left\|\frac{\partial\vec s}{\partial v}\times\frac{\partial\vec s}{\partial u}\right\|\,\mathrm du\,\mathrm dv

=\displaystyle\int_0^{\pi/2}\int_0^{2\pi}(36\sin^2v)(36\sin v)\,\mathrm du\,\mathrm dv

=\displaystyle2592\pi\int_0^{\pi/2}\sin^3v\,\mathrm dv=\boxed{1728\pi}

7 0
3 years ago
The data in the table can be entered into a calculator to determine a linear equation of best fit where x represents the number
Yakvenalex [24]

Based on the data given, the conclusion that can be drawn from the correlation coefficient associated with the linear equation is C. There's a weak negative correlation between the variables.

<h3>How to illustrate the information?</h3>

From the information given, it can be seen that the value of y is increasing with the increase in the value of x.

This implies that the correlation is positive. Also, the change in the values of y with x are scattered a lot.

Therefore, the conclusion that can be drawn from the correlation coefficient associated with the linear equation is that there's a weak negative correlation between the variables

Learn more about data on:

brainly.com/question/4219149

#SPJ1

7 0
2 years ago
Please help me no links
Sauron [17]
Its 81 good job on the question
8 0
3 years ago
Read 2 more answers
Can anybody help me on this assignment I've been working on it for weeks and I can't get the slope ​
mr Goodwill [35]

Answer:

Y=7/3x+3

Step-by-step explanation:

you start at the y intercept which is b. you would then do a rise over run, starting with the lowest value ont the grid. you will count 7 up, and then you do run, which is counting across. you will get 3. your answer is y=7/3x+3

6 0
3 years ago
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