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OLEGan [10]
3 years ago
12

PLEASE HELP...!

Mathematics
1 answer:
Volgvan3 years ago
5 0

Step-by-step explanation:

To find the mean, add together all of the numbers in your data set. Then divide that sum by the number of addends.

To find the median, you have to list the numbers in your data from least to greatest and start crossing off numbers untill you have the middle number.

Ex) 2, 3, 4, 5, 6, 7, 8  [5 is the median]

To find the range, subtract the greatest number and the lowest number in your data

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__________________________________________________________

Brainliest? I am trying to get to a new rank so I can help more people and I would totally appreciate it if you did!

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Simplify the following expression: (5x2 + 3x + 4) − (2x2 + 7x − 1). If the final answer is written in the form Ax2 + Bx + C, wha
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First be sure that the right side of the equation is 0. In this case, all you need to do is subtract 5 from both sides.

 

3x + 2x2 – 1 = 0

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Simplify, and write the terms with the exponent on the variable in descending order.

 

2x2

+

3x

–

1

=

0

↓

 

↓

 

↓

 

 

ax2

 

bx

 

c

 

 

 

a = 2, b = 3, c = −1

 

Now that the equation is in standard form, you can read the values of a, b, and c from the coefficients and constant. Note that since the constant 1 is subtracted, c must be negative.

Answer

2x2 + 3x – 1 = 0; a = 2, b = 3, c = −1

Step-by-step explanation:

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