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Fed [463]
3 years ago
12

What expressions are equal to (5x-7)-(3x-4)

Mathematics
1 answer:
astra-53 [7]3 years ago
8 0

Answer:

2x-3

Step-by-step explanation:

1) distribute the negative to the second parentheses

(5x-7) -3x+4

2) combine like terms

2x-3

Hope this helps!

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Which is the best estimate of the correlation coefficient for the variables in the scatter plot?
V125BC [204]

By using a scatter plot we can get the relationship of two variables or correlation.

There will be two types of correlation.

If the data of the plot show a positive slope of the estimated line then it will be a positive correlation.

Now a correlation value lie between 0 to 1 if it is very close to 0 like 0.1 , 0.2 then we can say the correlation is weak psitively correlated. and if it will be close to 1 like 0.8 or 0.9 then the correlation will be strong.

Similarly if slope of the estimated line will be negative then it will be a negative correlation.

From the above scatter plot notice that it has a negative slope and we can draw a fair estimate line on this scatter plot. So, there is strong negative correlation.

Hence the correct choice is -0.8.

3 0
3 years ago
While studying abroad in France, you offer to bake your grandmother's famous cookies for other students in your program. You hav
IRINA_888 [86]

Answer:

22.8 kl

Step-by-step explanation:

4 0
3 years ago
What is the value of the expression 30 - 9+ 3 - (12 = 4)?
Flauer [41]

Answer:

21

Step-by-step explanation:

30 - 9 +3

30 - 12

18

18 - 12=4

      12/4 = -3

18 - -3

21

8 0
2 years ago
Enter the number that makes the equation true.<br><br> 0.26 - 41/100 = blank/100 - 41/100
Lerok [7]
Note that you are subtracting the same number from both sides. Thus, blank/100 must equal .26. Convert .26 to a fraction by placing it over 100 and removing the decimal point: 26/100. blank = 26
5 0
3 years ago
(N^16) 1/4<br> Need help
Shtirlitz [24]

Answer:

{n}^{16} \times 1  \div 4 \\   {n}^{4}

Step-by-step explanation:

4 times 4 is 16 so while both are in power so we can do this like that

6 0
3 years ago
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