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Veseljchak [2.6K]
3 years ago
13

What is the best approximation for the area of a circle diameter of 19 m?

Mathematics
1 answer:
Maslowich3 years ago
7 0
The formula for an area of a circle is 
A=pi times radius squared

there for you do pi times 9.5 to the power of two/squared (radius is half of the diameter so 19 divided by 2 is 9.5) 

pi times 9.5 squared 
= 283.5

I rounded to the nearest tenths


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2n=10

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n=5


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Hope this helps!

3 0
3 years ago
Suppose that F(x) = x^2 and G(x) = 2x^2-5. Which statement best compares the graph G(x) with the graph of F(x)?
notsponge [240]
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8 0
3 years ago
Read 2 more answers
A chemist has a 40% alcohol solution and a 25% alcohol solution. How much of each should he mix together to get 50 liters of a 3
ludmilkaskok [199]

Answer:

33 1/3 L of the 40% solution, 16 2/3 L of the 25% solution

Step-by-step explanation:

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Let x represent the number of Liters of the 40% solution

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x + y = 50

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Solve the first equation for one variable...

x = 50 - y             (subtract y from both sides in equation 1)

Now substitute that value into the second equation...

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Now solve for y...

20 - 0.4y + 0.25y = 17.5

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So we need to plug that into the first equation to find 'x'

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x = 50 - 16 2/3

x = 33 1/3

3 0
3 years ago
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ankoles [38]

Answer:

Option A, The pen cost less than $0.35.

Step-by-step explanation:

The given inequality is d ∠ 0.35

Now we have to define this inequality with the help of given options.

If d represents the cost of pen, then cost of pen should be less than 0.35.

Option A, The pen cost less than $0.35. is the answer.

5 0
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Will someone help with this question
Solnce55 [7]

The answer is 4.71 × 10-7

hope this helps

5 0
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