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guapka [62]
3 years ago
11

Let P={6,7,8,9,10}, Q={7,8,9}, and R={3,4}

Mathematics
1 answer:
Sati [7]3 years ago
6 0

I think your answer is D


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Is 13/12 greater then 6/5?
Anton [14]

Answer:

yes

Step-by-step explanation:

6 0
2 years ago
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Find the mean, the median, and all modes for the data in the given frequency distribution. (Round your answers to one decimal pl
kvasek [131]

Answer: Mean = 7.8

              Median = 9

             Mode = 2,9

Step-by-step explanation: <u>Mean</u> is the average value of a data set. Mean from a frequency table is calculated as:

E(X)=\frac{2(10)+3(9)+9(10)+11(7)+12(3)+15(4)+16(3)}{10+9+10+7+3+4+3}

E(X) = 7.8

Mean for the given frequency distribtuion is 7.8.

<u>Median</u> is the central term of a set of numbers. Median in a frequency table is calculated as:

1) Find total number, n:

n = 10 + 9 + 10 + 7 + 3 + 4 + 3 = 46

2) Find position, using: \frac{n+1}{2}

\frac{n+1}{2}=\frac{47}{2} = 23.5

Median is in the 23.5th position.

3) Find the position by adding frequencies: for this frequency distribution, 23.5th position is 9

Median for this frequency distribution is 9.

<u>Mode</u>  is the number or value associated with the highest frequency.

In this frequency distribution, 2 and 9 points happen 10 times. So, mode is 2 and 9.

Mode for this distribution is 2 and 9.

7 0
3 years ago
For EACH ordered pair, determine if its a solution to 2x+9y=13
vladimir1956 [14]
The answer is (2,1). 2*2=4 and 9*1=9. 9+4=13
8 0
3 years ago
What's -128+138r=718 equal
german

Answer:

r = 6 3/23

Step-by-step explanation:

-128+138r=718

add 128 to each side

-128+128+138r=718+128

138r = 846

divide each side by 138

138r/138 = 846/138

r = 846/138

divide top and bottom by 2

r = 423/69

divide top and bottom by 3

r = 141/23

change this to a mixed number

r = 6 3/23

5 0
3 years ago
Please explain the steps to this problem
crimeas [40]
Make the denominators the same number. Then do the problem as you would regularly without fractions
5 0
3 years ago
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