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kondaur [170]
2 years ago
14

At a school fair, students were challenged to hit one of the small congruent circles on the large rectangular board with a ball.

Find the probability of hitting any small circle. Type answer as a percent.

Mathematics
1 answer:
shtirl [24]2 years ago
6 0

Answer:

~4.7%

Step-by-step explanation:

Area of the rectangle: 35*52=1820

Area of 1 small circle: A=πr2=π·32≈28.27433

28.27433*3=84.82299

84.82299/1820=0.04660603846

Therefore, about 4.7%

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The cost (in dollars) of a custom made sweatshirt is represented by 3.5n +29.99, where n is the number of different colors in th
juin [17]

Answer:

52.5n+449.85

Step-by-step explanation:

The cost is given for <em>1 sweatshirt</em>. To find the cost of 15 sweatshirts, we need to multiply the expression by 15. Let's do this:

15(3.5n+29.99)\\=15(3.5n+29.99)\\=15(3.5n)+15(29.99)\\=52.5n+449.85

This is the expression that represents the cost of 15 sweatshirts.

8 0
3 years ago
The medical director of a company looks at the medical records of all 50 employees and finds that the mean systolic blood pressu
Alekssandra [29.7K]

Considering that the value of 126.07 is valid for the population, it is a parameter.

<h3>What is the difference between a statistic and a parameter?</h3>

  • If the measure is defined only for the sample, it is a statistic.
  • If the measure can be defined for the population, it is a parameter.

In this problem, the mean blood pressure is calculated for all employees, which means that it is valid for the population, hence it is a parameter.

More can be learned about parameters and statistics at brainly.com/question/13794992

#SPJ1

8 0
2 years ago
What number is 0.01 less than 24? A: 23 B: 23.09 C: 23.9 D: 23.99
antiseptic1488 [7]

Answer: D: 23.99

Step-by-step explanation:

      What number is 0.01 less than 24?

The number 0.01 less than 24 is equal to 24 - 0.01;

24 - 0.01 = 23.99

      D: 23.99

5 0
1 year ago
Read 2 more answers
Select all ratios equivalent to 7:10
serg [7]

Answer: ratio:14:20    work:7*2=14   10*2=20       ratio:21:30    work: 7*3=21   10*3=30       ratio:28:40  work:7*8=28     10*4=40        

Step-by-step explanation: Just multiply the number on the left and right side of the ration by the same number to get an equivalent ratio. I gave some examples above. I hoped this helped.

3 0
2 years ago
Determine the type of triangle that has side lengths of 18, 24, and 42.
NNADVOKAT [17]
This is not a triangle since 1 side is equal to the sum of the other 2 sides , whereas it should be lesser:

42 < 24+18; so  42<42 Impossible

 
4 0
3 years ago
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