Answer: 81
Step-by-step explanation: The median is the middle number in a sorted, ascending or descending, list of numbers and can be more descriptive of that data set than the average. Write all of the numbers and cross out a even amount of numbers on both sides. Image 1 shows your problem. If your problem had another number, you solve it differently. Check image 2.
(20*16 ft^2)(144 in^2/ft^2)(tiles/(10*10 in^2)
320ft^2(144in^2/ft^2)(tiles/100in^2)=460.8 tiles
However tiles are quantized integer units so 461 tiles will be needed to tile the kitchen.
The difference is 2003.
The formula for the sum of the first n even numbers is SE = n^{2} + n, (E standing for even).
The sum of the first n odd numbers is SO = n^{2}, (O standing for odd).
Knowing this, plug 2003 for n,
SE - SO= (2003^{2} + 2003) - (2003^{2}) = 2003
The difference is 2003.
A number that can be divided into two halves, i.e. into two equal parts is called an even number. Even numbers are exactly divisible by 2 which means the remainder will be 0.
Learn more about Even numbers here: brainly.com/question/251701
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<h2><u>Given:</u><u>-</u></h2>
- Points C = (-7,2) →
- D = (3,12) →
<h2><u>To </u><u>Find</u><u>:</u><u>-</u></h2>
<h2><u>Required</u><u> </u><u>Response</u><u>:</u><u>-</u></h2>
Let,
Midpoint of CD be (x,y).
WKT,
The Midpoint of CD ◕➜ 
Let,
The centre be O
Radius = CO & OD
Here, C = (-7,2) →
O = (-2,7) →
Radius of Circle ◕➜ 
<h2>Option D.</h2>
Hope It Helps You ✌️
