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3 years ago

Question 1.

Mathematics

2 answers:

shusha [124]3 years ago

8 0

1. 103
2. 8
3. A. The mean would increase

antiseptic1488 [7]3 years ago

3 0

Answer:

1. Mean: 103

2. Median: 8

3. Mean would increase.

Step-by-step explanation:

1. 82+85+89+94+98+103+105+108+112+115+119+126 = 1,236

Then, 1,236/ 12 = 103

Therefore, our answer!

2. Put the numbers in order from least to greatest:

1, 6, 7, 8, 9, 11, 16

Cross out one on each side until you get to the middle.

3. Add up all original numbers to get a mean of: 2.7 and then add up all the numbers including six to get a mean of: 3.2 As you can see, the mean increased.

Hope this helps, good luck! :)

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Which data set COULD NOT be represented by the box plot shown? A) {13, 5, 8, 8, 6, 10, 15, 12, 4, 13, 11} B) {2, 10, 13, 7, 9, 5

siniylev [52]

Answer:

Step-by-step explanation:

From the box plots shown above:

The lowest number is 4

The highest number is 15

Therefore, the values in each boxes must lie between {4,15}.

In option A the values in the box include: {13,5,8,8,6,10,15,12,4,13,11}. The values of this data lies between 4 and 15 which makes it correct.

In the second option(B) the values in the boxes include: {2,10,13,7,9,5,15,12,7,13,11}.

The value 2 is not present in the interval, therefore the set of data is wrong.

In option C the values in the box include: {15,13,6,7,10,8,11,13,13,6,4}.

The values of this data lie between the interval of 4 and 15 which makes it correct.

In option D, the values in the box include: {4,13,6,7,15,12,11,10,5,13,9}·

The values of this data lie between the interval of 4 and 15 which makes it correct.

5 0

3 years ago

Grayson works in a department store selling clothing. He makes a guaranteed salary

MrRissso [65]

Step-by-step explanation:

a) $350 per week

20% commission on sales

For $925 in sales, commission is

20/100 × 925 = $185

Total earning = $350 + $185 = $535

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20/100 × x = 1/5 × x = x/5 or 0.2x

Total earnings = $350 + $ x/5 or $350 + $0.2x

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3 years ago

What is the sum of the interior angles of a 15 sided polygon?

maw [93]

Answer:

156

Step-by-step explanation:

Each triangle has an angle sum of 180 degrees, so the sum of the interior angles of the 15-gon must be (n-2) 13 × 180 = 2340 degrees. Since the 15-gon is regular, this total is shared equally among the 15 interior angles. Each interior angle must have a measure of 2340 ÷ 15 = 156 degrees.

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3 years ago

A circle has center O(5, −1) and radius 5. Which of the following points is on the circle?

Xelga [282]

Answer:

The correct answer is the first one listed.

Step-by-step explanation:

First you have to determine what the equation for that circle is. The standard form of a circle is

$(x-h)^2+(y-k)^2=r^2$ where h and k are the coordinates of the center and the radius is squared. Using the given info, our equation will look like this:

$(x-5)^2+(y+1)^2=25$

Now we use the coordinates given and plug in 2 for x and 3 for y and do the math and see if the 2 sides are equal.

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7 0

4 years ago

Five times the sum of a number and 4 is -15

kicyunya [14]

5(x+4)=-15

Distribute
5x+20=-15

Subtract 20 from both sides
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Final answer: The number is -7

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4 years ago