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Colt1911 [192]
3 years ago
6

In a group of 21 students, 8 students take Art courses, 7 students take Music courses. Two students take both courses. A student

is chosen randomly from this group. What is the probability that the student takes either Art or Music courses? 57
Mathematics
1 answer:
Blababa [14]3 years ago
3 0
Since two people take both courses, we can subtract two from 7, 8, and 21, giving us 5, 6, and 19.

Add 5 and 6 together to get 11. Since eleven students are in those two groups, we can answer this. The answer will be 11/19.
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samuel fell asleep after they had travelled 90 miles. if the total length of the trip was 600 miles, what percentage of the tota
natali 33 [55]
<h2>Answer:</h2><h2>Samuel fell asleep after travelling 90 miles which is 15%of their total trip distance.</h2>

Step-by-step explanation:

The total length of the trip = 600 miles

Samuel fell asleep after they had travelled  = 90 miles

Percentage of the total trip travelled when samuel fell asleep = \frac{90}{600} (100)

= 15%

Samuel fell asleep after travelling 90 miles which is 15%of their total trip distance.

5 0
3 years ago
HELP ASSAPPP WITH THIS QUESTION
GarryVolchara [31]
The answer is the first one 
7 0
3 years ago
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What da answer to 5. and 6? help is needed please plzzzz​
denpristay [2]
5 is 130.48
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7 0
3 years ago
Simplify tan9x-tan5x / 1+tan9xtan5x​
Wittaler [7]

Answer:

The given expressions simplifies to tan (4x).

Step-by-step explanation:

Here, the given expression is : \frac{tan9x - tan5x}{1+ tan9xtan5x}

By TRIGONOMETRIC IDENTITY:

tan (A-B)  = \frac{tanA - tanB}{1+ tanAtanB}

Putting this identity here, and taking A = 9 x, B = 5 x, we get

\frac{tan9x - tan5x}{1+ tan9xtan5x} = tan (9x-5x)

= tan(4x)

Hence, the given expressions simplifies to tan (4x).

5 0
3 years ago
I need help ASAP!!
Dmitrij [34]
Suggestion:

The width is the x value and the hight is the y value.

Plot the points on the graph as decimal if that helps.

The point at the bottom left is the origin (0,0)

I hope this helps.
5 0
2 years ago
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