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2 years ago

Find the circumference and area of the circle.

Mathematics

1 answer:

Mamont248 [21]2 years ago

6 0

Answer:

circumference ≈ 4.71

area ≈ 1.77

Step-by-step explanation:

first you need to find your radius, to do so you need to divide 1.5 by 2 which equals to 0.75.

to find the circumference you need to use the equation C=2πr

to find the area you need to use the equation A=πr2

$\pi$ = 3.14 , r = 0.75

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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:

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

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

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2 years ago

The letters from the word “integer” are placed on cards and put in a hat. If someone picks 1 card out of the hat, how many diffe

vesna_86 [32]

The possible different outcomes are: c. 6 outcomes.
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hope this help

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3 years ago

Short note of harmer <br>

Sonja [21]

Answer:

Physical or psychological damage or injury: The storm did great harm to the crops. 2. Immoral or unjust effects: They made a mistake and meant no harm

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3 years ago

A pizza shop sells pizzas that are 10 inches (in diameter) or larger. A 10-inch cheese pizza cost $8. Each additional inch cost

Katyanochek1 [597]

A pizza shop sells pizzas that are 10 inches orr larger. A 10-inch cheese pizza costs $8 and each additional costs $1.50 and each additional topping costs $0.75.

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Where 'a' represents the number additional inches and 'b' represents the number of additional toppings.

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2 years ago

You are selling tickets to a play. You have sold (3t+2) tickets for $5 each and (2t+5) tickles for $7each. Write an expression t

yKpoI14uk [10]

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3 years ago