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3 years ago

If y varies inversely as x square, how does x vary with y?

Mathematics

1 answer:

____ [38]3 years ago

8 0

Answer:

this basically means that whenever x is increased then y will decrease, but if x is decreased y will increase.

Step-by-step explanation:

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The six faces of a cube are painted black. The cube is then cut into <img src="https://tex.z-dn.net/?f=5%5E3%20%3D%20125" id="Te

Rasek [7]

Answer:

The probability that a randomly selected small cube is rolled and the face on the top is black is P=0.2.

Step-by-step explanation:

We have a cube, with the faces painted black, that each side is divided in 5, so we end up with 125 cubes.

We have to calculate the probability that a randomly selected cube is rolled and the face on the top is black.

This probability is equal to the proportion of black area in the total area of the cube.

We can define the side of the original cube as A=5a, being a the side of the small cubes.

The area that is painted black is equal to the sum of 6 squares of side A. In terms of a, that is:

$S_b=6\cdot A^2=6\cdot(5a)^2=6\cdot25a^2=150a^2$

The total area of the 125 small cubes is:

$S=125(6a^2)=750a^2$

Then, the ratio of black surface to the total surface is:

$s_b/s=(150a^2)/(750a^2)=0.2$

Then, we can conclude that the probability that a randomly selected small cube is rolled and the face on the top is black is P=0.2.

7 0

4 years ago

What is a equation that has a zero of -2 with a multiplicity of 3, a zero of 1 with a multiplicity of 1, degree of 4, and rises

zloy xaker [14]

Answer:

x^4+8x^3+18x-27=0

Step-by-step explanation:

In a equation of the form

$(x-a)^n(x-b)^m=0$

you have roots in x=a and x=b, and multiplicity of n and m respectively.

Hence, the equation is

$(x-(-2))^3(x-1)=0\\(x+2)^3(x-1)=0\\$

by expanding the factors you have

$(x^3+3x^2(3)+3x(3)^2+(3)^3)(x-1)=0\\(x^3+9x^2+27x+27)(x-1)=0\\x^4+9x^3+27x^2+27x-x^3-9x^2-27x-27=0\\x^4+8x^3+18x^2-27=0$

HOPE THIS HELPS!!

3 0

3 years ago

Help me with my math, please!!!!!!!

Sedaia [141]

Answer:

Answer is A

Function is increasing

f(x) was - 6 was below x-axis and then it reached 0 meaning it was rising or increasing.

5 0

3 years ago

Draw blocks and make a 10 to add

ZanzabumX [31]

47+3=50 and 7 into 4 + 3
50 + 4 = 54 so 47+7=54
if this is right can i get brainest

5 0

3 years ago

If 3p+4q=8 and 4p+3q=13, what is q equal to?

Zepler [3.9K]

Q=-1 :)
just solve for one variable of your choice in either function, in this case p then plug it into the other function to start solving for q.

4 0

3 years ago

If y varies inversely as x square, how does x vary with y?​

If y varies inversely as x square, how does x vary with y?