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brilliants [131]
3 years ago
12

Uestion Hel

Mathematics
1 answer:
Evgesh-ka [11]3 years ago
6 0

40ft hope this hellped ask again

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40 points | Sierra and Alek each have five cousins. Their ages are listed below.
faust18 [17]

Find the mean for both:

Sierra: 2 + 11 + 12 + 13 + 15 =  53

53/5 =10.6

Median is the middle value = 12

Alek: 9 + 11 + 11 + 12 + 13 = 56

56/5 = 11.2

Median = 11

A: The medians do not equal the mean.

B: Sierra's are more spread out, ( no identical ages and a greater range ).

C: Sierra's mean is less than Alek.

D. Sierra has an outlier (2).

The answer would be B

8 0
3 years ago
Please help me with this question
Wittaler [7]

Answer:

x = 8

Step-by-step explanation:

Since < A and < B are vertical angles, then it means that they have the same measure.

Given that m < A = (3x - 21)°, and m < B = (2x - 13)°:

We can set up the following equation to solve for the value of x:

m < A  = m < B

(3x - 21)° = (2x - 13)°

3x - 21 = 2x - 13

Subtract 2x from both sides:

3x - 2x - 21 = 2x - 2x - 13

x - 21 = -13

Add 21 to both sides to isolate and solve for the value of x:

x - 21 + 21 = -13 + 21

x = 8

We must verify if we have the correct value for x by plugging in 8 into the equality statement:

(3x - 21)° = (2x - 13)°

[3(8) - 21]° = [2(8) - 13]°

(24 - 21)° = (16 - 13)°

3° = 3° (True statement. This means that we have the correct value for x).

Therefore, the value of x = 8.

Please mark my answers as the Brainliest, if you find this solution helpful :)

7 0
2 years ago
What is the End Behavior of the following Graph?
natima [27]

Answer:

b hopefully this helps you with work

5 0
3 years ago
Out of every 5 students surveyed, 2 listen to country music. At the same rate, how many students in a school of 800 listen to co
Lorico [155]

Answer:320

Step-by-step explanation:

2/5 of the students surveyed lisen to country. So to make the percentage fit the total student population, you figure out what your 2/5 is in a percetnage.  That comes out to 40%. so, 40% of 800 is 320.

8 0
3 years ago
25 less than 4 times a number is 47. What is the number?
snow_tiger [21]

Answer:

18

Step-by-step explanation:

25 + 47 = 72

72 ÷ 4 = 18

5 0
3 years ago
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