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VMariaS [17]
3 years ago
8

90,88,88,87,84,95,90,80,98,and 100

Mathematics
2 answers:
Nitella [24]3 years ago
7 0
In order to find the median the 1st thing I would do is put the number in order
80,84,87,88,88,90,90,95,98,100 
then cross them out Start with left then go the right and so on...
until you get 1 number in the middle left (Since theirs 2 numbers in the middle add them up and divide by two ) 88+90=178   178/2=89
Median = 89 

Now in Order to find the mean add up all the numbers and divide by however many numbers their are 
You should get 900 then divide by 10 because their were 10 numbers 

So Median=89 &  Mean=90 
ira [324]3 years ago
3 0

Hello There!

The mean is the average of numbers in a set.

STEP 1: <em>Add all the numbers in the set</em>

STEP 2: <em>Divide the sum by the number of digits you added</em>

In this case, we will add all the numbers up so 90+88+88+87+84+95+90+80+98+100 = 900

Next, we will divide 900 by how many digits we added so we would divide 900 by 10 because there are 10 numbers in this set.

Finally, we will get a quotient of 90.

<u><em>The Mean Of This Set of Numbers Is 90</em></u>

The median is the middle number when all the numbers are in order from least to greatest.

STEP 1: <em>Order the numbers from least to greatest</em>

STEP 2: <em>Cross out each number on the left and right until you get to the middle number</em>

In this case, we would order the numbers from least to greatest so...

80,84,87,88,88,90,90,95,98,100

Next, we cross out one number on the left and one number on the right until we reach our 1 number in the middle unless there are two.

Finally, we come across two numbers in the middle which means that we need to find the mean of 88 and 90 so when we add them up, we get a sum of 178 and then we divide by 2 and get a quotient of 89

<u><em>The Median Of This Set Is 89</em></u>

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The radius of a circle is 13miles. what is the area of a sector bounded by a 20 degree arc
Stolb23 [73]

Answer:

Area of the sector = 29.48 square miles.

Step-by-step explanation:

Given:

Radius of a circle = 13 miles

Angle bounded by the arc = 20 deg

To find

Area of the sector bounded by 20 degrees.

Note: Area of a sector = \frac{(\theta)}{360}\times \pi\times r^2

Plugging the values in the equation.

⇒ \frac{(\theta)}{360}\times \pi\times r^2

⇒ (\frac{20}{360})\times  3.14\times 13^2

⇒ 29.48 square-miles

So the area of the sector bounded by 20 degree arc is 29.48 square miles.

5 0
3 years ago
Please help i don't understand!
vaieri [72.5K]

Answer: 9. x=-3/2     10. x=2

                   x= 5/2           x=5/3

Step-by-step explanation:

9. Factor the equation:

How: put 4x^2 in the bottom left box and -15 in the upper right box.

then multiply 4x^2 x -15 = -60x^2 and put your answer in the top center box of the diamond.

Put the -4x from the equation in the bottom box. Then list out factors that multiply to the top box (-60x^2) and add to the bottom box (-4x) The two factors are -10 and 6

-10 x 6 = -60

-10 + 6 = -4

Put -12x and -5x in the remaining white boxes and find what numbers multiply to each.

I attached a picture. The colored dots correspond with each other.

Eg: Orange dot x orange dot = number in white square

Now you get the two factors (2x+3)(2x-5)

Set both of these equal to 0 and solve

0=2x+3     0=2x-5

x= -3/2       x= 5/2

Do the same for the other problem

7 0
1 year ago
Help ill give u brainliest
dalvyx [7]
Zero's:9
Turning point:3,8
Y-intercept:2,5
Axis of sym,etry::X-axis
6 0
3 years ago
Solve 3x+2y=4 4x+3y=7 algebraically
Leona [35]
Step 1. Multiply first equation with -3 and the second one with 2. You'll get:
\left \{ {{-9x-6y=-12} \atop {8x+6y=14}} \right.

Step 2. Add both equations together. You'll get:
-x=2, which gives x = -2

Step 3. Replace x = -2 in the first equation and calculate y.
3(-2)+2y=4\\&#10;y=\frac{4+6}{2}=5

The solution is: x=-2, y=5
8 0
3 years ago
Alan buys a basket of apples on sale for $7 before tax. The sales tax is 12.5%. What is the
shtirl [24]
7.87 is what i got :) good luck!!
5 0
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