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lyudmila [28]
3 years ago
14

The diameter of a circle is 18 cm what is its area in terms of pi

Mathematics
1 answer:
NikAS [45]3 years ago
3 0

Answer:

A = 81π cm²

Step-by-step explanation:

The formula for area of a circle is A = πr², where r is the radius.  The radius is half the diameter, so our radius for this problem is

18/2 = 9.    So the area is..

A = π(9²) = π(81)

  A = 81π cm²

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attashe74 [19]

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1 Inch = 4 Feet


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7 0
2 years ago
An airplane covers 94 miles in 1/6 of an hour. How many miles the plane can cover in 6 hours?
jeyben [28]

Let's find what 1/6 of an hour is.

1/6×60=10

So, ten minutes is equal to 1/6 of an hour. Let's find hour many sets of 10 minutes are in six hours. Let's first find the amount of minutes.

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7 0
3 years ago
Read 2 more answers
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MrMuchimi

Answer:

(-2, 0)

Step-by-step explanation:

the y-intercept is (-2, 0), therefore that the solution.

5 0
3 years ago
HELP!!!! I cannot find any good answers for this question and I keep getting it wrong! The answer options are:
kondaur [170]

The missing reason is (d) Add the fractions together on the right side of the equation

<h3>How to complete the missing reason?</h3>

From the statements, we have the following equation:

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Next, we add the fractions on the right-hand side of the equation.

This gives

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The above means that the last statement is gotten by adding the fractions on the right-hand side of the equation.

Hence, the missing reason is (d) Add the fractions together on the right side of the equation

Read more about quadratic equations at:

brainly.com/question/1214333

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2 years ago
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Troyanec [42]
Hard to read sideways but what I got from that is that you have a right triangle and you are trying to explain the other angles? 
Both of the other two angles would be 45 because an angle is 180 total. If it is a right angle, that means that there is a 90 degree angle. 180-90=90. In a right angle, the other two angles are the same in degree. Therefor 90/2 is 45. 45 applies to both of the acute angles. I hope this helps! Good luck :)
6 0
3 years ago
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