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3 years ago

Which of the following numbers is closer to the area of a circle with a radius of 2.1

Mathematics

2 answers:

Pachacha [2.7K]3 years ago

5 0

B. 11.33 is closer to the area of a circle with a radius of 2.1

Ipatiy [6.2K]3 years ago

4 0

The answer will be C.13.85. A=πr^2, so A=π2.1^2≈13.85. As a result, the area of the circle is about 13.85. Okay, π=3.14, and r^2=2.1×2.1=4.41. Then, 4.41×3.14≈13.85 to find the area of this circle. Hope it help!

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9 months ago

At a regional soccer tournament, tickets for two adults and seven students cost $60. Tickets for three adults and eleven stude

den301095 [7]

Answer:

The price of an adult ticket is $9 and the price of a student ticket is $6

Step-by-step explanation:

Create a system of equations where x is the price of an adult ticket and y is the price of a student ticket:

2x + 7y = 60

3x + 11y = 93

Solve by elimination by multiplying the top equation by 3 and the bottom equation by -2, to cancel out the x terms:

6x + 21y = 180

-6x - 22y = -186

Add them together:

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y = 6

Then, plug in 6 as y into one of the equations to solve for x:

2x + 7y = 60

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2x + 42 = 60

2x = 18

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So, the price of an adult ticket is $9 and the price of a student ticket is $6

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2 years ago

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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