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2 years ago

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A rectangular cube of iron is a side 8 cm. What is it volume.

1 answer:

Airida [17]2 years ago

5 0

A rectangular cube of iron is a side 8 cm.
Given, side (a) = 8 cm.
We know, volume of a cube $= {a}^{3}$
Therefore, the volume

$= {8}^{3} \: \: cm ^{3} \\ = 512 \: \: {cm}^{3}$

<u>A</u><u>nswer</u><u>:</u>

<u>The </u><u>volume </u><u>is </u><u>5</u><u>1</u><u>2</u><u> </u><u>cube </u><u>centimetres</u><u>.</u>

Hope you could get an idea from here.

Doubt clarification - use comment section.

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G(x)=-3X-1<br>What is g(10)?_

Kazeer [188]

Answer:

-31

Step-by-step explanation:

g(x) = -3x - 1

g(10) = -3(10) - 1

g(10) = -30 - 1

g(10) = -31

4 0

2 years ago

Determine The missing number in the equation <br><br> 3 + 9= +4

Bad White [126]

3 + 9 = 12/3 = positive 4 the missing number in the equation is 12/3.

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2 years ago

Suppose I have an urn with 9 balls: 4 green, 3 yellow and 2 white ones. I draw a ball from the urn repeatedly with replacement.

Mrrafil [7]

Answer:

$E(X_n)=\frac{2(n-1)}{27}$

$E(y)=\frac{14}{9}$

Step-by-step explanation:

From the question we are told that:

Sample size n=9

Number of Green $g=4$

Number of yellow $y=4$

Number of white $w=4$

Probability of Green Followed by yellow P(GY) ball

$P(GY)=\frac{4}{9}*\frac{3}{9}$

$P(GY)=\frac{4}{27}$

Generally the equations for when n is even is mathematically given by

$Probability of success P(S)=\frac{4}{27}$

$Probability of Failure P(F)=\frac{27-4}{27}$

$Probability of Failure P(F)=\frac{23}{27}$

Therefore

$E(X_n)=\frac{n}{2}*P$

$E(X_n)=\frac{n}{2}*\frac{4}{27}$

$E(X_n)=\frac{2n}{27}$

Generally the equations for when n is odd is mathematically given by

$\frac{n-1}{2}$

$E(X_n)=\frac{n-1}{2}*\frac{4}{27}$

$E(X_n)=\frac{2(n-1)}{27}$

b)

Probability of drawing white ball

$P(w)=\frac{2}{9}$

Therefore

$E(w)=\frac{1}{p}$

$E(w)=\frac{1}{\frac{2}{9}}$

$E(w)=\frac{9}{2}$

Therefore

$E(y)=[E(w)-1]\frac{4}{9}$

$E(y)=[\frac{9}{2}-1]\frac{4}{9}$

$E(y)=\frac{14}{9}$

5 0

2 years ago

Please help with this thanks

Olenka [21]

The answer is 2.84 so the best estimate is 3.00<span />

6 0

3 years ago

Read 2 more answers

The table shows the values of a function f(x).

QveST [7]

Answer:

The average rate of change is $=-4$

Step-by-step explanation:

The average rate of change from x=a to x=b of f(x) is given by;

$=\frac{f(b)-f(a)}{b-a}$

We want to find the average rate of change of the function represented in the table from x=-2 to x=2.

$=\frac{f(2)-f(-2)}{2--2}$

From the table f(-2)=25 and f(2)=9

The average rate of change from x=-2 to x=2 is

$=\frac{9-25}{2--2}$

$=\frac{-16}{4}$

$=-4$

3 0

2 years ago