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Keith_Richards [23]
3 years ago
11

Here is quite a simple question. How do you work out the area of a circle?

Mathematics
2 answers:
Tomtit [17]3 years ago
7 0
A=\pi r^2 where r is the radius of a circle.
Usimov [2.4K]3 years ago
5 0
<span><span>The area of a circle is π (pi) times the Radius squared, which is written: A = π × r2</span></span>
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. The teacher decides that no student can win twice, so she removes the tickets of the first winner before drawing the second wi
kozerog [31]

Answer:

<h2>There is 8% probability of Kitzen winning first and Ava second.</h2>

Step-by-step explanation:

The given table shows that there are 4 students, so there are 4 possible winner in total, but they have different number of tickets.

The total number of tickets is 48, that's the total possible outcomes. Kitzen has a probability of

P_{Kitzen}=\frac{12}{48}=\frac{1}{4}

Ava has a probability of

P_{Ava}=\frac{16}{48}=\frac{1}{3}

Now, the probability of having one event and the other is

P=\frac{1}{4} \times \frac{1}{3}=\frac{1}{12} \approx 0.08

Therefore, there is 8% probability of Kitzen winning first and Ava second.

(Notice that the probaility is not about Kitzen or Ava winning, it's about winning both, that's why the percentage is low)

7 0
3 years ago
Michael has $12,500 to invest. he invests part in an account which earns 4.2% annual interest and the rest in an account which e
Dimas [21]
Suppose he invest x dollars in one account, y in the other
x+y=12,500
0.042x+0.062y=669.50
multiple the first equation by 0.042: 0.042x+0.042y=525
subtract this new equation from equation 2: 0.02y=144.50
y=7225
x=12500-7225=5275
8 0
3 years ago
Read 2 more answers
Using the two-way table, what percentage of the students that like to travel out of state do not like camping? Round to the near
Shkiper50 [21]
Smallest to biggest % then divide
6 0
3 years ago
If Elizabeth skates 2/3 mile in 2/9 hour how far does she skate in 1 hour?
padilas [110]

Answer:

3 miles in a hour

Step-by-step explanation:

2/3÷2/9

=6/2

=3 miles in a hour

8 0
3 years ago
Can someone plzzz help mee ill give brainlest
Maslowich

Answer:

7238.23ft Cubed

Step-by-step explanation:

To get the answer you plug the value of the radius in to the equation >

V = 4/3πr³

8 0
3 years ago
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