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Leni [432]
2 years ago
9

Omg can anyone please help me thank you if I’m able to give brainliesst I will

Mathematics
1 answer:
ivolga24 [154]2 years ago
6 0

Answer: 591

Step-by-step explanation:

12 x 13= 156

12 x 5= 60 x 2= 120

12 x 5= 60/2= 30 x2= 60

5 x 12= 60

13 x 15= 195

195 + 60 + 60 + 120 + 156= 591

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40. In a statistics class of 30 students, there were 13 men and 17 women. Two of the men and three of the women received an A in
Harrizon [31]

Answer:

a) 56.67% probability that the student is a woman

b) 16.67% probability that the student received an A

c) 63.33% probability that the student is a woman or received an A.

d) 83.33% probability that the student did not receive an A.

Step-by-step explanation:

A probability is the number of desired outcomes divided by the number of total outcomes.

We have that:

30 students

13 men

17 women

2 men that got an A and 11 men that did not get an A.

3 women that got an A and 14 women that did not get an A.

a. Find the probability that the student is a woman.

30 students, of which 17 are women.

P = \frac{17}{30} = 0.5667

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b. Find the probability that the student received an A.

30 students, of which 5 received an A

P = \frac{5}{30} = 0.1667

16.67% probability that the student received an A

c. Find the probability that the student is a woman or received an A.

30 students, of which 17 are women and 2 are men who received an A. So

P = \frac{19}{30} = 0.6333

63.33% probability that the student is a woman or received an A.

d. Find the probability that the student did not receive an A.

30 students, of which 25 did not receive an A.

P = \frac{25}{30} = 0.8333

83.33% probability that the student did not receive an A.

7 0
3 years ago
What is the velocity of a wave with a frequency of 930 Hz and a wavelength of 0.50 m
erma4kov [3.2K]
Hi, thank you for posting your question here at Brainly.

To find the velocity of light or any electromagnetic wave, we use the equation: v = wavelength * frequency. Substituting,

v = 0.5 m * 930 1/s
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Answer:

the first one

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IgorLugansk [536]

Answer:

Step-by-step explanation:

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