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bazaltina [42]
3 years ago
13

Find the area of the circle. Leave your answer in terms of π.

Mathematics
1 answer:
seraphim [82]3 years ago
5 0

Answer:

4π

Step-by-step explanation:

We are asked to calculate the area of a circle whose diameter is equal to 4, we know that the area of the circle is given by the following equation:

A = π * (r ^ 2)

where r is the radius of the circle, we know that the radius of the circle is half the diameter, therefore:

r = d / 2 = 4/2

r = 2

replacing, we are left with:

A = π * (2 ^ 2)

A = 4π

Which means that the area of the circle is 4π

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Describe a real world situauationthat could be modled by dividing two rational numbers
Dima020 [189]
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A more real life one would be:
You have 6 bills to pay off, then two more come in, you only pay off 4, 
( I hope this helped, I'm sorry if any of this is wrong:) )
7 0
3 years ago
Write the following in ascending order a)4/10,49/100,357/10,1/1001 plz fast ,correct and plzz with explanation
suter [353]

Answer:

1/1001 < 4/10 < 49/100 < 357/10

Step-by-step explanation:

4/10 => 0.4

49/100 => 0.49

357/10 => 35.7

1/1001 => 0.0009

Ascending order is from smallest to the greatest.

5 0
3 years ago
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Enlargement or reduction?
djyliett [7]

Answer:

Reduction

Step-by-step explanation:

so, the blue shape's letters  are E, F, G, H and I.

the green shape's letters are E', F', G', H', and I'.

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4 0
3 years ago
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How can Sue use the converse of the Pythagorean Theorem to find out if a triangle with side lengths 28, 53, and 45 is a right tr
timama [110]

Answer:

D

Step-by-step explanation:

28²+45²=53²

8 0
3 years ago
Help me solve this problem
eduard

Answer:

b.   (-1, 5)

Step-by-step explanation:

Since the first equation is already solved for y, we can use substitution.

Substitute y in the second equation with 3x + 8.

5x + 2y = 5

5x + 2(3x + 8) = 5

5x + 6x + 16 = 5

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x = -11/11

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Now substitute x in the first original equation by -1 and solve for y.

y = 3x + 8

y = 3(-1) + 8

y = -3 + 8

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Answer: (-1, 5)

8 0
1 year ago
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