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Flura [38]
3 years ago
5

Evaluate. -12 A. -12 B. 0 C. 12 D. 24

Mathematics
1 answer:
FromTheMoon [43]3 years ago
8 0
The answer goes up by 12 each time
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Please help me solve the answers​
xeze [42]

The modal and mean mark of the frequency distribution is 5 and 4.83 respectively.

<h3>Mean and mode</h3>

Mode refers to a mark which reoccurs most in a frequency distribution.

  • Modal mark = 5

The total number of students who wrote the test = 2 + 3 + 4 + 6 + 10 + 4 + 3 + 2 + 1 + 1

= 36 students

Mean mark = Total mark / Total students

= (2×1) + (3×2) + (4×3) + (6×4) + (10×5) + (4×6) + (3×7) + (2×8) + (1×9) + (1×10) / 36

= (2+6+12+24+50+24+21+16+9+10 / 36

= 174/36

= 4.83333333333333

Approximately,

Mean mark = 4.83

If 25% of students failed,

Number of students who failed = 25% of 36

= 25/100 × 36

= 0.25 × 36

= 9 students.

Learn more about mean and mode:

brainly.com/question/14532771

#SPJ1

7 0
2 years ago
Answer plz for brainliest
kobusy [5.1K]

Answer:

7 units

Step-by-step explanation:

Please refer to the image attached with this answer.

Our initial line was CD  joining points (-1,2) and (6,2).

It is now pulled down by 4 units , to new points

(-1,-2) and (6,-2)

Now we again shift this line by 2 units to the left. The new coordinates thus would be C'(-3,-2) and D'(4,-2)

Hence the distance C'D' = 4-(-3) = 4+3 = 7 UNITS

Hence the length of the line will be 7 units.  

It is observed that the length of the line segment remains the same as it was of the original line. as the translation is uniform.

8 0
3 years ago
What are the steps for solving and graphing 2x - 3y = 9?<br><br> please help!
const2013 [10]

Answer:

Step-by-step explanation:

5 0
3 years ago
E^x not equal to zero
Zina [86]

Answer:

e^x \neq 0

Step-by-step explanation:

We will prove this with the help of a contradiction:

Let as assume that e^x = 0

Multiplying both sides by e^{-x}

e^x\times e^{-x} = 0\times e^{-x}\\e^0 = 0\\1 = 0

which is not possible.

Hence, our assumption was wrong which led us to a contradiction.

Thus,

e^x \neq 0

8 0
4 years ago
The conditional relative frequency table was generated using data that compares the number of boys and girls who pack their lunc
Kaylis [27]
36 students............................................
4 0
3 years ago
Read 2 more answers
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