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MariettaO [177]
3 years ago
10

Find the exact value of the area of a circle whose radius is 3.1

Mathematics
2 answers:
Kazeer [188]3 years ago
7 0

Answer:

Area = pi r²

Area = 22/7 × 3.1 × 3.1 = 30.202 unit²

GuDViN [60]3 years ago
4 0

Step-by-step explanation:

area \: of \: circle =  \pi \:  {r}^{2}  \\  = 3.14 \times  {(3.1)}^{2}  \\  = 3.14 \times 9.61 \\  = 30.1754 \:  {unit}^{2}  \\

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Rylee is baking cupcakes for a bake sale. She spends $35 on supplies and she plans to sell the cupcakes for $2.50 each. How many
Setler [38]

Answer:

44 cupcakes

Step-by-step explanation:

Since she spent $35, and she wants to profit $75, she needs to make $110.

110/2.5 = 44

6 0
3 years ago
Point A is on a number line halfway between −17−17 and 55. Point B is halfway between point A and 0. What integer does the point
julia-pushkina [17]
Find A first by using formula: (a+b)/2= midpoint
so: A = [(-17)+(55)]/2
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Now find B using midpoint formula:
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6 0
3 years ago
There are 15 pieces of fruit in a bowl and six of them are apples. What percentage of the pieces of fruit in the Bowl are apples
aleksklad [387]

Answer:

40%

Step-by-step explanation:

amount of apples = 6

total amount of fruits = 15

percentage of apples

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3 0
3 years ago
What polynomial has roots of −5, −4, and 1?
katrin [286]

Answer:

The last choice.

Step-by-step explanation:

The  last term is  - 20 and because we have a coefficient of 1 on the x^3,  and in order to get this last term  and the given roots the factors have to be

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3 0
4 years ago
Find the slope of the line
matrenka [14]

Answer:

1

Step-by-step explanation:

To find the slope of the line, use the equation:

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Let's find 2 obvious points on the line

(5,5) and (10,10)

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Let's Solve!

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1

Therefore, our slope is 1

8 0
2 years ago
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