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2 years ago

Find the area of the circle. Give your answer in terms of x. C= pie over 7

Mathematics

1 answer:

weqwewe [10]2 years ago

8 0

Answer:

Assuming C stands for Circumference we will assume the circum is pi/7

Therefore x = 1/196pi

Step-by-step explanation:

First find the radius with C = 2 * r * pi

1/7pi = 2 * r * pi

r = (1/7pi)/2pi

r = 1/14

Now for the area we have A = r^2 * pi

A = (1/14)^2 * pi

A = 1/196 * pi

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I don’t know the answer

Sunny_sXe [5.5K]

Answer:

AC ≈ 12.9 cm

Step-by-step explanation:

Using the ratio

sin40° = $\frac{b}{20}$

Multiply both sides by 20

20 × sin40° = b, hence

AC = b = 20 × sin40° ≈ 12.9

5 0

2 years ago

Read 2 more answers

a line is perpendicular to y = 3/7x - 2 and intersects the point (3,3). What is the equation of this perpendicular line?

snow_lady [41]

Answer:

y = -7/3x + 10

Step-by-step explanation:

Step 1: Find the slope of the perpendicular line

Do this by taking the negative inverse of the first line

m = -7/3

Step 2: Find <em>b</em>

y = mx + b

y = -7/3x + b

3 = -7/3(3) + b

3 = -7 + b

b = 10

You should get y = -7/3x + 10 as your final answer.

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2 years ago

Recently, Frank took a one-hundred question aptitude test where each correct answer scored 5 points, each incorrect answer score

Lyrx [107]

Im guessing he answered 30 correct, let me know if im correct

3 0

3 years ago

Read 2 more answers

Can someone please help me with these?

Vikki [24]

Answer:

Step-by-step explanation:

One way to find the union of two sets is to list all the elements of both sets in order, then delete any duplicates.

Here, joining the two sets gives ...

{1, 6, 2, 3, 14, 2, 9, 13, 1}

Putting these elements into numerical order, we have ...

{1, 1, 2, 2, 3, 6, 9, 13, 14}

I have highlighted the duplicates. Deleting those gives us the desired union of the two sets:

X ∪ Y = {1, 2, 3, 6, 9, 13, 14} . . . . . matches choice C

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3 years ago

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pychu [463]

Answer:

2 friends

Step-by-step explanation:

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3 years ago