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deff fn [24]
3 years ago
12

If a dart were thrown randomly at the dart board shown below, what is the

Mathematics
1 answer:
klemol [59]3 years ago
5 0

Answer: A. 31%

Step-by-step explanation:

First you need to find the area within each circle. This can be found by using the formula: pi * r^2

The area of the circle with radius 8mm is 64 * pi. The area of the circle with radius 14mm is 196 * pi.

196 * pi = 615.75216

64 * pi = 201.06193

Now divide the larger area by the smaller area to get how many times larger the large area is than the small area.

615.75216 / 201.06913 = 3.06239

3.06239 rounds up to 3.1

Now we know the radius of 14mm has an area 3.1 times the area of 8mm. The area of an 8mm radius has 31% of the area of a 14mm radius.

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8 0
3 years ago
There are four boys and eight girls in a class. The teacher randomly selects three different students to answer questions. The f
umka21 [38]

The probability of the given condition is 28/165.

Given that, there are four boys and eight girls in a class.

We need to find the probability of the given question.

<h3>What is probability?</h3>

The probability is defined as the chances of happening of any random event or the possibility of happening of any event is called the probability.

The teacher randomly selects three different students to answer questions.

The first is the student is a girl, the second student is a boy, and the third student is a girl.

The total number of students=12, the number of boys=4 and the number of girls=8.

Now,

Step 1: The first student is a girl=8/12

Step 2: The second student is a boy=4/11

Step 3: The third student is a girl=7/10

In the first step, you select one of 8 girls among 12 students.

In the second step, you select one of 4 boys among the remaining 11 students.

In the third step, you select one of the remaining 7 girls among the remaining 10 students.

Thus, probability=(8/12)×(4/11)×(7/10)=28/165

Therefore, the probability of the given condition is 28/165.

To know more about probability visit:

brainly.com/question/24756209

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4 0
1 year ago
How many solutions does 2x^2-3x+6=0 have?
Ipatiy [6.2K]

Answer:

i beileve in this answer its a question of more than one salution, one salution and no solutions ................ so more than one salutions

Step-by-step explanation:

8 0
3 years ago
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He has 3/5 of his cards left because he had 62/105 of his cards and that simplified is 3/5
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What banking service would be the most beneficial for a customer who just obtained a debit card?
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I'm assuming that it's "0% Financing"..

6 0
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