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4 years ago

Square and cube challenge

Mathematics

1 answer:

Amiraneli [1.4K]4 years ago

6 0

Answer:

8 cm.

Step-by-step explanation:

To make a cube, it is length times width times height. And cubes have side lengths equal all the way around. Therefore all you have to do to get a side length is take the cubic root of 512 which is 8. AKA 8 times 8 times 8 equals 512.

PLEASE GIVE BRAINLIEST

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Soloha48 [4]

Answer:

Step-by-step explanation:

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3 years ago

Read 2 more answers

If f(x)=\sqrt(3x+2) , what is the equation for f-1(x)

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If $f(x)=\sqrt{3x+2}$ then $f^{-1}(x)=(3x+2)^2$ .

Hope this helps.

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4 years ago

The probability of being a universal donor is 6% (O-negative-blood type). Suppose that 6 people come to a blood drive.' a) What

Tcecarenko [31]

Answer:

$Mean = 0.36$

$SD = 0.5817$

$P(x=3) = 0.003588$

Step-by-step explanation:

Given

Let

A = Event of being a universal donor.

So:

$P(A) = 0.06$

$n = 6$

Solving (a): Mean and Standard deviation.

The mean is:

$Mean = np$

$Mean = 6 * 0.06$

$Mean = 0.36$

The standard deviation is:

$SD = \sqrt{np(1-p)}$

$SD = \sqrt{6*0.06*(1-0.06)}$

$SD = \sqrt{0.3384}$

$SD = 0.5817$

Solving (b): P(x = 3)

The event is a binomial event an dthe probability is calculated as:

$P(x) = ^nC_x * p^x * (1-p)^{n-x}$

So, we have:

$P(x=3) = ^6C_3 * 0.06^3 * (1-0.06)^{6-3}$

$P(x=3) = ^6C_3 * 0.06^3 * (1-0.06)^3$

$P(x=3) = 20 * 0.06^3 * (1-0.06)^3$

$P(x=3) = 0.003588$

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3 years ago

In a class, 1/7 of the time is spent on Mathematics, 2/21 on English and 1/14 on games. What fraction of the time is spent on AL

likoan [24]

Answer:

5/21

Step-by-step explanation:

1/7 + 2/21 = ?

lcd of 7 and 21 is 21 so;

( 2/21 x 1/1) + 1/7 x 3/3) = 5/21

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2 years ago

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iragen [17]

Literally any number besides 2, so it could be y=x+1, just change the constant number

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3 years ago