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musickatia [10]
3 years ago
9

Evaluate the expression when x = 12 and y = 2.x3y

Mathematics
2 answers:
harina [27]3 years ago
5 0

12 \times 3 \times 2 = 72
12×3= 36
36×2=72
earnstyle [38]3 years ago
3 0

Answer:

I think the answer is 3y = -2x + 12

Step-by-step explanation:

2x + 3y = 12

-2x           -2x

____________

3y = -2x + 12

I hope you like my answer. If its right Im pretty sure it is. Please mark me Brainiest. Also pls email me if you need further help. at bignerdygamer23 at g-mail . com. hope this helps.

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Find the volume of the ellipsoid x^2+y^2+9z^2=64
yuradex [85]
Parameterize the ellipsoid using the augmented spherical coordinates:

\begin{cases}x=\frac18\rho\cos\theta\sin\varphi\\\\y=\frac18\rho\sin\theta\sin\varphi\\\\z=\frac38\rho\cos\varphi\end{cases}

Then the Jacobian for the change of coordinates is

\mathbf J=\dfrac{\partial(x,y,z)}{\partial(\rho,\theta,\varphi)}=\begin{bmatrix}\frac18\cos\theta\sin\varphi&-\frac18\rho\sin\theta\sin\varphi&\frac18\rho\cos\theta\cos\varphi\\\\\frac18\sin\theta\sin\varphi&\frac18\rho\cos\theta\sin\varphi&\frac18\rho\sin\theta\cos\varphi\\\frac38\cos\varphi&0&-\frac38\rho\sin\varphi\end{bmatrix}

which has determinant

\det\mathbf J=-\dfrac3{512}\rho^2\sin\varphi

Then the volume of the ellipsoid is given by

\displaystyle\iiint_E\mathrm dx\,\mathrm dy\,\mathrm dz=\iiint_E|\det\mathbf J|\,\mathrm d\rho\,\mathrm d\theta\,\mathrm d\varphi

where E denotes the spaced contained by the ellipsoid. In particular, we have the definite integral and volume

\displaystyle\frac3{512}\int_{\varphi=0}^{\varphi=\pi}\int_{\theta=0}^{\theta=2\pi}\int_{\rho=0}^{\rho=1}\rho^2\sin\varphi\,\mathrm d\rho\,\mathrm d\theta\,\mathrm d\varphi=\dfrac\pi{128}
4 0
3 years ago
Help extra points really important to me ​
Naily [24]

Answer:

a.7(6xy-2z)

=7*6xy-7*2z

=42xy-14z

b.5(2w+3)-6(w+2)

=5*2w+5*3-6*w-6*2

=10w+15-6w-12

=4w+3

c.2f(2f+g-3)

=2f*2f+2f*g-2f*3

=4f^2+2fg-6f

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Pls help photo included !!!!
AlladinOne [14]

1. 371.25

2. 742.5

3.185.625

6 0
3 years ago
Mike is working on solving the exponential equation 37^x = 12; however, he is not quite sure where to start.
Rainbow [258]

The solution of the given exponential equation is 0.688.

Given that Mike is working on solving the exponential equation 37ˣ = 12.

An exponential equation is an exponential equation where the power (or)  part of the exponent is a variable.

firstly, we have to slve this equation is by converting it to logarithmic form. Any exponential equation can be transformed into an equivalent logarithmic equation as follows:

aˣ = y

logₐy = x

Now, we will apply this transformation to our equation and we get

log₃₇12=x

Further, we will apply the change of base formula so that solution is written in terms of base 10 logs:

x=log12/log37

So, this is an exact answer to given equation, but we can simplify it further by using decimal approximation of it using a calculator. Remember that these logs are base 10:

x≈1.079/1.568

x=0.688

Hence, the solution of the given exponential equation 37ˣ=12 is 0.688.

Learn more about exponential equation from here brainly.com/question/24162621

#SPJ4

4 0
2 years ago
Look at the expression:<br>42x-56y<br>Is it equivalent to<br>7(6x-8y)?<br><br>Yes Or No​
Katarina [22]

Answer:yes it is

Step-by-step explanation:

8 0
3 years ago
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