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Mkey [24]
2 years ago
6

I need help with 1-8 I have no idea how to do this so it you would break to down that I can understand that would be great

Mathematics
2 answers:
dem82 [27]2 years ago
8 0

For these fractions, you need to find a number that can divide the numerator and denominator by the same number. It needs to be simplified down till it can't be simplified any more.


1. 1/9

2. 12/18

3. 5/6

4. 36/45

5. 5/8

6. 6/8

7. 10/12

8. 20/36

Nesterboy [21]2 years ago
6 0
1. 
18 turned into 6. That means that it's divided by 3.
So you can divide the top part, 9, in to 3, that will be 3

2.
6 turned into 18, that means that it's multiplies by 3.
So you can multiply the top part, 4, to 3, that would be 12

3. 
25 to 5 = divide 5
30 divide 5 = 6

4.
12 to 36 = multiply 3
15 multiply 3 - 45

5.
24 to 8  = divide 3
15 divide 3 = 5

6.
32 to 8 = divide 4
24 divide 4 = 6

7. 
50 to 10 = divide 5
60 divide 5 = 12

8. 
5 to 20 = multiply 4
9 multiply 4 = 36

Hope that helped!

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PLEASE HELP ME IT WOULD MEAN A LOT
arlik [135]

Answer:

12x³ - 3x

Step-by-step explanation:

<em>Given </em>

<em>f(</em><em>x</em><em>)</em><em> </em><em>=</em><em> </em><em>x </em><em>and </em><em>g(</em><em>x</em><em>)</em><em> </em><em>=</em><em> </em><em>4x²</em><em> </em><em>-</em><em> </em><em>1</em>

<em>Now</em><em>, </em>

<em>3</em><em> </em><em>f(</em><em>x</em><em>)</em><em> </em><em>*</em><em> </em><em>g(</em><em>x</em><em>)</em><em> </em>

<em>=</em><em> </em><em>3</em><em> </em><em>*</em><em> </em><em>x </em><em>(</em><em>4x²</em><em> </em><em>-</em><em> </em><em>1</em><em>)</em>

<em>=</em><em> </em><em>3x </em><em>(</em><em> </em><em>4x²</em><em> </em><em>-</em><em> </em><em>1</em><em> </em><em>)</em>

<em>=</em><em> </em><em>12x³</em><em> </em><em>-</em><em> </em><em>3x </em>

<em>Hope </em><em>it </em><em>will </em><em>help </em><em>:</em><em>)</em>

4 0
3 years ago
a previous analysis of paper boxes showed that the standard deviation of the length is 9mm. What is the 98% confidence interval
il63 [147K]
We cannot calculate the confidence interval without the sample size.  However, for the second question, the sample size needed would be 49.

The formula we use is

n=(\frac{z_{\frac{\alpha}{2}}\times \sigma}{E})^2

To find the z-score:
Convert 98% to a decimal:  0.98
Subtract from 1:  1-0.98 = 0.02
Divide by 2:  0.02/2 = 0.01
Subtract from 1:  1-0.01 = 0.99

Using a z-table (http://www.z-table.com) we see that this value is closest to a z-score of 2.33.

Using the z-score, our standard deviation (9) and our margin of error (3), we have:
n=(\frac{2.33(9)}{3})^2=(6.99)^2=48.86\approx 49
6 0
3 years ago
In the X Y -plane, Line crosses the Y - axis at the point (0,3) and passes through the point ( 4,5). Which of the following is a
nikitadnepr [17]

Answer: y = 1/2x + 3

Step-by-step explanation:

Use the equation y=mx +b

Find the slope (m) of the line by finding the difference in y over the difference in x. Or "rise over run".

The y-intercept (b) is 3 (when x is zero, it is y).

4 0
3 years ago
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Serhud [2]
3. .5*60 because .5 represents the 5% and "of" stands for multiplication
7 0
2 years ago
Read 2 more answers
I need HELPPP!!!! T^T
Artemon [7]
The answer is 3 square units
8 0
2 years ago
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