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2 years ago

Original price of coat: $100.00 Discount: 21%

Mathematics

1 answer:

Reptile [31]2 years ago

5 0

Answer:

$79

Step-by-step explanation:

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A curious patterns occurs in a group of people who all shake hands with one another. It turns out that you can predict the numbe

ycow [4]

Missing part of the question

Determine the number of handshakes, i, that will occur for each number of people, n, in a particular room. (people)

Answer:

$S_n = \frac{n}{2}(n - 1)$

Step-by-step explanation:

Given

For 5 people

$\begin{array}{cc}{People} & {Handshakes} & {5} & {4} & {4} & {3} & {3} & {2} & {2} & {1} & {1} & {0} &{Total} & {10} \ \end{array}$

Using the given instance of 5 people, the number of handshakes can be represented as:

$(n - 1) + (n - 2) + (n - 3) + ........ + 3 + 2 + 1 + 0$

The above sequence is an arithmetic sequence and the total number of handshakes is the sum of n terms of the sequence.

$S_n = \frac{n}{2}{(T_1 + T_n})$

Where

$T_1 = n - 1$ --- The first term

$T_n = 0$ --- The last term

So:

$S_n = \frac{n}{2}(n - 1 + 0)$

$S_n = \frac{n}{2}(n - 1)$

7 0

2 years ago

I need help on 2 & 3

lora16 [44]

Answer:

NUMBER TWO IS ------ 22,29,37

I DONT KNOW NUMBER THREE

Step-by-step explanation:

I HOPE I HELPED U 229 999 0523

5 0

2 years ago

Expand the following 5( 2x -4 )

ycow [4]

Answer:

10x-20

Step-by-step explanation:

5(2x-4)

5x2=10

5x4=20

8 0

2 years ago

PLZ HELP ASAP!!!!!!!!!!!

lorasvet [3.4K]

For number 3 add all the numbers and divide how numbers you have

5 0

3 years ago

Read 2 more answers

Graph f(x)=4x^3-4x-2

maw [93]

Answer:

minimum: ( $\frac{\sqrt{3} }{3} , -\frac{8\sqrt{3} }{9}-2$ )

maximum: (- $\frac{\sqrt{3} }{3} , \frac{8\sqrt{3} }{9}-2$ )

vertical intercept: (0 , -2)

Step-by-step explanation:

3 0

2 years ago