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3 years ago

Plz help me with this sum, see the pic. Thank you

Mathematics

1 answer:

lozanna [386]3 years ago

6 0

Answer:

${5}^{8} {x}^{6}$

Step-by-step explanation:

$\bigg( \frac{125 {x}^{ - 3} }{ {5}^{ - 3} \times 25 \times {x}^{ - 6} } \bigg)^{2} \\ \\ = \bigg( \frac{ {5}^{3} {x}^{ - 3} }{ {5}^{ - 3} \times {5}^{2} \times {x}^{ - 6} } \bigg)^{2} \\ \\ = {( {5}^{3 + 3 - 2} {x}^{ - 3 + 6} })^{2} \\ = {( {5}^{6 - 2} {x}^{3} )}^{2} \\ = {( {5}^{4} {x}^{3}) }^{2} \\ = {5}^{4 \times 2} {x}^{3 \times 2} \\ = {5}^{8} {x}^{6} \\$

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Step-by-step explanation:

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3 years ago

Suppose two random variables, X and Y are independent, which statement is false? a) P(X∣Y)=P(X) b) P(X∪Y)=P(X)+P(Y) c) P(X∩Y)=P(

Svetlanka [38]

B is false, since by the inclusion/exclusion principle,

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3 years ago

Find the volume of the composite solid. Round your answer to the nearest tenth.

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Answer:

Volume of the Figure $=825.38m^3$

Step-by-step explanation:

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Volume of a cone = $\pi *r^2*\frac{h}{3}$

Volume of the Upper Cone with

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3 years ago

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Answer:

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Step-by-step explanation:

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3 years ago

Read 2 more answers

Solving systems of linear equations by graphing 2x+3y=-12 and 10x+3y=12

Artyom0805 [142]

Answer:

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Step-by-step explanation:

I like a good graphing calculator for solving systems of equations by graphing.

If you're solving these by hand, you need to graph the equations. It can be convenient to put the equations into "intercept form" so you can use the x- and y-intercepts to draw your graph.

That form is ...

x/(x-intercept) +y/(y-intercept) = 1

Dividing a standard-form equation by the constant on the right will put it in this form.

x/(-12/2) +y/(-12/3) = 1 . . . . . . divide the first equation by -12

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x/(12/10) +y/(12/3) = 1 . . . . . . divide the second equation by 12

x/1.2 +y/4 = 1 . . . . . . . . . . . . . the x-intercept is 1.2*; the y-intercept is 4

The locations of these intercepts and the slopes of the lines tell you that the solution will be in the fourth quadrant. The lines intersect at (x, y) = (3, -6).

_____

* It can be difficult to draw an accurate graph using an intercept point that is not on a grid line. It may be desirable to put the second equation into slope-intercept form, so you can see the rise/run values that let you choose grid points on the line. That equation is y =-10/3x +4. A "rise" of -10 for a "run" of +3 will get you to (3, -6) starting from the y-intercept of (0, 4).

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3 years ago