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jok3333 [9.3K]
3 years ago
9

Which expression is equivalent to (3a)–2?

Mathematics
2 answers:
Sati [7]3 years ago
7 0

Answer:

D

Step-by-step explanation:

dimulka [17.4K]3 years ago
4 0
The awnser is D but could also maybe be B
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4 0
3 years ago
Read 2 more answers
Score Frequency
RUDIKE [14]

Scores on an AP Exam at a local high school are recorded in the table. What was the average score?

Answer: D) 4.266 is correct

Explanation:

We are given the below frequency table:

Score Frequency

1         |         0

2        |         3

3        |         4

4        |        16

5        |       22

Let's denote the score by x and frequency by f.

The average formula is:

Average=\frac{\sum fx}{\sum f}

                    =\frac{(1\times0) + (2\times3)+(3\times4) +(4\times16) + (5\times22)}{0+3+4+16+22}

                    =\frac{0+6+12+64+110}{45}

                    =\frac{192}{45}=4.267

Therefore, the average score was 4.267

Hence the option D) 4.266

7 0
3 years ago
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