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3 years ago

Factor completely: -6x4y5 - 15x3y2 + 9x2y3

1 answer:

4 0

The letters said to a power, the letter has to be in every term. If it is, take the one with smaller power

you wll find that it would be : -3x^2y^2 (2x^2y^3 + 5x - 3y)

Hope this helps

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Evaluate the following integral in cylindrical coordinates triple integral 1/(1+x^2+y^2) dzdxdy z=0..2 y=0..square root(1-x^2) x

sertanlavr [38]

In cylindrical coordinates, we take

$x=r\cos\theta$

$y=r\sin\theta$

$z=z$

so that $\mathrm dx\,\mathrm dy\,\mathrm dz=r\,\mathrm dr\,\mathrm d\theta\,\mathrm dz$ .

We have

$1+x^2+y^2=1+r^2$

and the integral is

$\displaystyle\int_0^2\int_0^\pi\int_0^1\frac r{1+r^2}\,\mathrm dr\,\mathrm d\theta\,\mathrm dz=\frac{\ln2}2\int_0^2\int_0^\pi\mathrm d\theta\,\mathrm dz=\boxed{\pi\ln2}$

8 0

2 years ago

9-3*1/3*98= 6-*87/8+85647-552= 254+968*8

sp2606 [1]

Answer:

don't you have a calculator? just use that

6 0

2 years ago

I need to figure out how to find proportionality in a equation

Alla [95]

Answer:

Step-by-step explanation:to find the proportionlity it has to go through the origin (0,0) and has to be a straight line on a graph but, in a model label your measurements as x1 ,y1 ,x2, y2 because y2-y1/x2-x1 should give u a answer then do y/x

5 0

2 years ago

For what values of h and k does the linear system have infinitely many solutions?

Sophie [7]

Answer:

h=-32 and k=-24

Step-by-step explanation:

$4x_1 + 3x_2 = -1:a_1x_1 + b_1x_2=c_1\\hx_1 +kx_2=8:a_2x_1+b_2x_2=c_2$

For infinitely many solutions, lines must be same; $\frac{a_1}{a_2}=\frac{b_1}{b_2}=\frac{c_1}{c_2}\\\\=\frac{4}{h}=\frac{3}{k}=\frac{-1}{8}\\\\h=-32, k=-24$

7 0

3 years ago

A trapezoid has verities A(-5, 4), B(-3, 2) C(-7, -2) and D(-7, 2). It is transformed according to the rule

Makovka662 [10]

Not enough info to answer the question it should have 2 trapezoids to compare if your talking about transformations

7 0

3 years ago