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natka813 [3]
3 years ago
9

Rafael is taking a test that contains a section of 12 true-false questions. how many of the possible groups of answers to these

questions have exactly 8 correct answers of false?
Mathematics
1 answer:
stiv31 [10]3 years ago
5 0
Answer: There are 495 possible different sets of answers the could contain exactly 8 correct answers of false.

Basically, we are looking for the number of different ways of selecting 8 objects out of a set of 12 objects. Our objects are answers of false and the set is the test.

This is a combination problem. The formula would be:

12! / (8! x 4!) = 495
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What is the LCM of 2, 4, and 5?
marta [7]

Answer:

20

Step-by-step explanation:

the LCM of 2, 4, and 5?

2

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7 0
3 years ago
I tried multiplying it but I still can’t figure it out please please help
neonofarm [45]
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3 0
3 years ago
What is the difference between the yearly wages of the highest paying job and lowest paying job, assuming Araceli will be paid f
tigry1 [53]

-> 40 hours per week, 52 weeks a year

<u>shop and save grocers</u>

monthly wages: $3,800

hourly wages: $3800 / 160 = $23.75 per hour

yearly wages: $23.75 per hour x 40 hours per week x 52 weeks a year

= $49,400

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$16.50 per hour x 40 hours per week x 52 weeks a year

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..? that's not even an answer choice what-

4 0
4 years ago
Help please ........
Nitella [24]

Answer:

D

Step-by-step explanation:

eh too lazy to explain but plz trust me

5 0
3 years ago
Can anyone explain how you graph things for example, like y=x-4 how would you graph that
Savatey [412]

Answer:

In basicallity if a question such as this pops up, the correct way to go would first be to graph this. y=x-4 would be equivalent to x=4.

My paper work is below:

y = x - 4

0 = x - 4

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Hope this helped..

8 0
3 years ago
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