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olga_2 [115]
3 years ago
15

PLEASE ANSWER ASAP!!!! MY TEST IS TIMED!!!

Mathematics
1 answer:
dolphi86 [110]3 years ago
8 0
1.  x/6>3  multiply both sides by 6

x>18

So a. and c. are both greater than 18

2.  

-4x<32  divide both sides by -4  (and remember to reverse direction of inequality sign because of multiplication/division by a negative value!)

x>-8

So three value of this infinite set are -7, -6,  -5  :P

3.

x/6≥3 multiply both sides by 6

x≥18

So three value of this infinite set of solutions are 18,19,20
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The table below shows the scores of a group of students on a 10-point quiz.Test ScoreFrequency3 54 15 16 27 28 49 310 1The mean
Katarina [22]

Explanation

Part A

We can use the formula below to find the mean.

\text{Mean}=\sum ^{}_{}(\frac{fx}{f})

We will then have;

\begin{gathered} \text{Mean = }\frac{5\times3+4\times1+5\times1+6\times2+7\times2+8\times4+9\times3+10\times1}{19}=\frac{15+4+5+12+14+32+27+10}{19} \\ =\frac{119}{19}=6.2632 \end{gathered}

Mean = 6.2632

Part B

Since the data set is odd.

\begin{gathered} \text{Median}=\frac{(n+1)}{2}^{th}\text{observation} \\ =\text{Value of }\frac{\text{(19+1)}}{2}^{th}\text{observation} \\ =\text{value of 10th observation} \end{gathered}

Answer: From the column of cumulative frequency cf, the median is 7

5 0
1 year ago
1 5/8 * 3 2/3 in simplest form
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Answer:

20

Step-by-step explanation:

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8 0
3 years ago
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Alex Ar [27]

Answer:

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Step-by-step explanation:

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3 years ago
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