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AURORKA [14]
1 year ago
11

Will someone help me with this

Mathematics
1 answer:
Marina CMI [18]1 year ago
3 0

hope this helps :)

.........

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What is the answer Factorise: 2x² +7x+6.<br><br>​
Mila [183]

Answer:

2x  + 3 )(x   + 2 )

Step-by-step explanation:

2x² + 7x + 6          

Find two numbers multiplied together to get 6

and if you multiply one by 2, the answer is 7:

Tested:                                  

6 & 1  but 6 · 2 + 1 = 13 or 6 + 2 · 1  = 8 No

2 & 3  and 2 · 2 + 3 = 7    Yes

2x² = 2x  & x

 all signs are positive

   trinomial  factoring  (            )(            )

                                     (     +     )(      +    )

    2 and 3 are the numbers to use    (2x  + 3 )(x   + 2 )   or     (2x + 2) (x + 3)

The largest number goes with the 2x.

Therefore (2x  + 3 )(x   + 2 )

Check 2x(x + 2) + 3(x + 2)

              2x² + 4x + 3x + 6

              2x² + 7x + 6         checked                            

7 0
2 years ago
Read 2 more answers
Consider this population data set: 4,6,7, 11, 12, 18, 26, 23, 14, 31, 22, and 12. The values 11, 31, 22, and 12 constitute a ran
Andrej [43]

Answer:

The population mean is the sum of the 12 data set values divided by 12:

4 + 6 + 7 + 11 + 12 + 18 + 26 + 23 + 14 + 31 + 22 + 12 = 186.

Therefore the population mean = 186/12 = 15.5.

The sample mean is the sum of the 4 sample values divided by 4:

11 + 31 + 22 + 12 = 76.

Therefore the sample mean = 76/4 = 19.

The sample mean is more than the population mean by 19 - 15.5 = 3.5.

hope it helped

Step-by-step explanation:

6 0
3 years ago
Which expression represents triple the sum of y + 2? A.) 3(y + 2) B.) 5y C.) 3y +2 D.) 6
Harlamova29_29 [7]

Answer:

A. 3(y+2)

Step-by-step explanation:

B wouldn't work because it would be safe to assume that it represents the quintuple of the sum.  C also wouldn't work because although the y is tripled, the 2 isn't.  And D wouldn't work because it is only tripling 2.

A should be your answer since you are distributing the number 3 which is the same thing as a triple to get the sum of the answer which is 3y + 6.

3 0
2 years ago
McNeary brought home a weekly pay check with these deductions: Federal--$45.67, FICA-- 24.63, state--19.04. How much does he pay
vlada-n [284]
McNeary gets payed annually about;
45.67 x 52 = 2374
24.63 x 52 = 1280
19.04 x 52 = 990

In total this adds up to 4644 dollars. 
7 0
3 years ago
Read 2 more answers
What is the area of this figure?<br><br> Enter your answer in the box
vovangra [49]
The answer is 35cm for the area


8 0
3 years ago
Read 2 more answers
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