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romanna [79]
3 years ago
7

At a convention there are 7 mathematics instructors, 5 computer science instructors, 3 history instructors, and 4 english instru

ctors. If an instructor is selected, find the probability of getting a computer science instructor or a mathematics instructor
Mathematics
1 answer:
kodGreya [7K]3 years ago
3 0

Answer:

12/19.

Step-by-step explanation:

There are 19 instructors altogether.

Probability (getting a computer science instructor) =  5/19.

Probability (getting a mathematics instructor) =  7/19.

As this  a 'compounded or'  probability  these values are added so the answer is 5/19 + 7/19

= 12/19.

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Answer:

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you need to gather a compilation of prices and add them all up. You then divide that total by the number of prices you gathered.

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15a2-6ab-8a2 - 5ab + 20+ a? - ab - 31 -
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-12ab+7a power of 2 +a 11
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What is the distance from (−4, 0) to (2, 5)? Round your answer to the nearest hundredth. Explain your answer.
11Alexandr11 [23.1K]

Answer:

A 7.81

Step-by-step explanation:

Use the distance formula to find the distance between coordinates.

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5 0
3 years ago
Complete the equation of the line through (−8,8), and (1,-10 ). Use exact numbers. Help me please my dog just died and I want to
katrin2010 [14]

Answer: (Mayadc821 wrote this anwser check theyre account for more)

Since you know the x and y values, you just have to plug these into the linear slope-intercept equation:

y = mx + b

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m + b = -10

b = -10 - m

Now that we have a value for b, we can plug this into the other equation:

8 = m(-8) + b

8 = -8m + (-10 - m)

8 = -9m -10

18 = -9m

m = -2

Now that we know what m is equal to, we can plug this into our first equation to get an answer for b:

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We draw 2 cards from a deck of 52 cards. what is the probability that both are queens?
solniwko [45]
Use combination
There are 4 queen cards in a deck of 52 cards
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I calculate 4C2 first
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Then I calculate 52C2
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Hence, the probability is
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3 years ago
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