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4 years ago

Please help me????????

Mathematics

2 answers:

Sedaia [141]4 years ago

3 0

(3/20)(2/19)(1/18)

6/6840

1/1140

motikmotik4 years ago

3 0

When we pick the first computer, there will be a 3/20 chance of picking a defective computer. After this, we will have taken away one computer, and one defective computer. This will leave us with 2 defective computers and 19 computers.

If we draw a computer from this, there is a 2/19 chance of picking a defective computer. We repeat the same steps again: take away a defective computer and normal computer.

This leaves us with one defective computer and one normal computer. There is a 1/18 chance of drawing the defective computer.

To finish this problem, we multiply our three chances together. This is:

3/20 * 2/19 * 1/18 = 6/6840 = 1/1140, so the third answer is correct.

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Eight times the sum of a number and 4 equals 3

BigorU [14]

The algebraic expression is: $8(x+4)=3$

And Value of x is: $x=\frac{-21}{8}$

Step-by-step explanation:

We need to write the expression of the statement:

Eight times the sum of a number and 4 equals 3

Let the number = x

The expression will be:

$8(x+4)=3$

Solving the expression to find value of x:

$8(x+4)=3\\8x+24=3\\Adding\,\,-24\,\,on\,\,both\,\,sides:\\8x+24-24=3-24\\8x=-21\\x=\frac{-21}{8}$

So, The algebraic expression is: $8(x+4)=3$

And Value of x is: $x=\frac{-21}{8}$

Keywords: Algebraic Expression

Learn more about Algebraic Expression at:

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3 0

3 years ago

Amber is starting a garden. She plants 2 flowers the first month. The next month, she plans three times more flowers (6 flowers)

Artist 52 [7]

This is a geometric progression problem. We can the general formula that can tell us how many flowers would be planted each month.
Let's write the terms that we know and see if we can find the pattern:
$
\begin{tabular}{lll}
Month & Number of flowers planted & Different form \\
1 & 2 & 2\cdot3^0 \\
2 & 6 & 2\cdot3^1 \\
3 & 18 & 2\cdot3^2 \\
4 & 54 & 2\cdot3^3
\end{tabular}
\end{table}$
The patern here is obvious. Let's write it down:
$N=2\cdot3^{n-1}$
This formula gives us a number of flowers planted in the n-th month.

6 0

3 years ago

PLEASE HELP!

WINSTONCH [101]

Answer:

Had a problem in school like this, all you gotta dois ta

4 0

3 years ago

Help................

enyata [817]

Answer:

sorry I didn't know what to do in this question

I am really sorry

8 0

3 years ago

AveGali [126]

The rise/run of AC and CE in the similar triangles are the same, the true statement is: B. slope of AC = slope of CE.

<h3>What is the Slope of the Sides of Similar Triangles?</h3>

On a coordinate plane, the corresponding sides of two triangles are always the same because the ratio of the rise over run is always the same.

Triangles ABC and CDE are similar triangles, therefore the rise over run of AC and CE, which is the slope, will be the same.

Thus, slope of AC = slope of CE.

Learn more about slope on:

brainly.com/question/3493733

7 0

2 years ago