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Ugo [173]
2 years ago
12

PLEASE HELP ME ITS DUE IN 1 HOUR

Mathematics
2 answers:
BlackZzzverrR [31]2 years ago
6 0
Median=11
Lower quartile=4
Upper quartile=16
Vadim26 [7]2 years ago
4 0

Answer: Answer:Median: 10.5Lower quartile: 4Upper quartile: 16Explanation:Median:First, write the observations in ascending order or descending order.The formula to calculate the median is mean of (n/2) and (n/2+1)th observations, for even number of observationsn = 12 (even)Median = Mean of (6)th and (7)th observations = 10 + 11 divided by 2 = 21/2 = 10.5Therefore the median is 10.5.After writing in ascending or descending order the first and last terms justify the lower and upper limits respectively.They are:Lower quartile: 4Upper quartile: 16Question 2.the lengths of 10 pencils, in centimeters:18, 15, 4, 9, 14, 17, 16, 6, 8, 10Type below:_________________Answer:Median: 12Lower quartile: 4Upper quartile: 18Explanation:Median:First, write the observations in ascending order or descending order.The formula to calculate the median is mean of (n/2) and (n/2+1)th observations, for even number of observationsn = 10 (even)Median = Mean of (5)th and (6)th observations = 10 + 14 divided by 2 = 24/2 = 12Therefore the median is 12.After writing in ascending or descending order the first and last terms justify the lower and upper limits respectively.They are:Lower quartile: 4Upper quartile: 18Question 3.Make a box plot to display the data set in Exercise 2.Type below:_________________Answer:The above box plot represents the lower and upper quartiles, the median.Explanation:Box plot is drawn using the number line and the rectangle which is drawn above it.The ends of the rectangles say about the lower and upper limits and the middle line indicates the median.Question 4.The numbers of students on several teams are 9, 4, 5, 10, 11, 9, 8, and 6. Make a box plot for the data.Type below:_________________Answer: Explanation:Box plot is drawn using the number line and the rectangle which is drawn above it.The ends of the rectangles say about the lower and upper limits and the middle line indicates the median.Therefore the lower and upper quartiles are 4 and 11 respectively.Median:First, write the observations in ascending order or descending order.The formula to calculate the median is mean of (n/2) and (n/2+1)th observations, for even number of observationsn = 8 (even)Median = Mean of (4)th and (5)th observations = 8 + 9 divided by 2 = 17/2 = 8.5Therefore the median is 8.5.

Step-by-step explanation:

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Parabola with focus (2, 1) and directrix x=-8
scoray [572]

Consider we need to find the equation of the parabola.

Given:

Parabola with focus (2, 1) and directrix x=-8.

To find:

The equation of the parabola.

Solution:

We have directrix x=-8. so, it is a horizontal parabola.

The equation of a horizontal parabola is

(y-k)^2=4p(x-h)           ...(i)

where, (h,k) is center, (h+p,k) is focus and x=h-p is directrix.

On comparing focus, we get

(h+p,k)=(2,1)

h+p=2          ...(ii)

k=1

On comparing directrix, we get

h-p=-8         ...(iii)

Adding (ii) and (iii), we get

2h=2+(-8)

2h=-6

Divide both sides by 2.

h=-3

Putting h=-3 in (ii), we get

-3+p=2

p=2+3

p=5

Putting h=-3, k=1 and p=5 in (i), we get

(y-1)^2=4(5)(x-(-3))

(y-1)^2=20(x+3)

Therefore, the equation of the parabola is (y-1)^2=20(x+3).

6 0
2 years ago
Malik is making coffee using a recipe that calls for 2 cups of milk for every 5 cups of coffee
Ne4ueva [31]

Answer:

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Hope this helped!!!

3 0
2 years ago
Select all points from the list below that lie
Kaylis [27]

Answer:

so you need to take them and put them on the 4 quadrants or need to be put on a number line

Step-by-step explanation:

is there any other thing attached to the question?

6 0
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At a new store a CD costs $15.99. At a second store the same CD costs 0.75 as much. About how much does the second store charge?
evablogger [386]
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3 years ago
Which figure shows an example of symmetry?
damaskus [11]

Answer:

It looks like B would be the correct answer.

Step-by-step explanation:

Hope this helps:)

4 0
2 years ago
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