MATHEMATICS MIDDLE SCHOOL

What is the exact area of a circle with a radius of 6 feet? 24π square feet 36π square feet 121π square feet 144π square feet

Answers

Answer 1

Answer:

Answer:

36π

Step-by-step explanation:

The formula for the area of a circle is π times radius squared.

The radius in this case is 6, so squaring it gets us 36.

Multiplying this by π gets 36π.

Answer 2

Answer:

Answer:

36 pi plz and thank you mark brainliest good night.

Step-by-step explanation:

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Answers

Subtract 87 by 63 and there is UR answer

63-87=24 that a simple way of doing it. how ever it you take 100 minus both number then what you get you subtract and it leaves I with 24 like 100-87=13 and 100-63=37, then subtract 13 and 37 which equal 24

Steve has a steel barrel with a diameter of 4 feet that can be filled to a depth of 4.3 feet with oil. What is the volume of the barrel?Use = 3.14

A.
54.008 cubic feet

B.
51.6 cubic feet

C.
78.128 cubic feet

D.
17.708 cubic feet

Answers

Answer:

Option A. 54.008 cubic feet

Step-by-step explanation:

we know that

The volume of the barrel is equal to

$V=\pi r^(2)h$ ----> volume of the cylinder

we have

$r=4/2=2\ ft$ ----> the radius is half the diameter

$h=4.3\ ft$ ---> is the depth

$\pi =3.14$

substitute

$V=(3.14)(2)^(2)(4.3)$

$V=54.008\ ft^(3)$

Albert is organizing an end of term party. The cost of renting a hall for an evening is $100. The cost of food is $8 per person. How much will the party cost if 20 people attend? 50 people attend? Write an algebraic expression for the cost of the party if n people attend. Suppose Albert decides to hire a DJ for the party. The DJ charges $250 for the evening. What is the new cost of the party when n people attend? Suppose the cost of food increases by $2 per person. Write an expression for the total cost of the party with a DJ for n people. The new food price is in effect. How much will the party with a DJ cost for 40 people? Show your work.

Answers

Algebraic expression: 100+8n=x
cost if 20 people attend: 100+8*20 = 100+160
cost if 50 people attend: 100+8*50 = 100+400
New cost of the party when 'n' people attend:100+250+8n=x
Cost for party with 40 people and dj:100+250+n(8+2)=x

What is the formula for the area of a circle?