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Mars2501 [29]
3 years ago
6

Multiple-choice questions have a special grading rule determined by your instructor. Assume that your instructor has decided to

grade these questions in the following way: If you submit an incorrect answer to a multiple-choice question with n options, you will lose 1/(n−1) of the credit for that question. Just like the similar multiple-choice penalty on most standardized tests, this rule is necessary to prevent random guessing.If a multiple-choice question has five answer choices and you submit one wrong answer before getting the question correct, how much credit will you lose for that part of the question?
Mathematics
2 answers:
Daniel [21]3 years ago
6 0

Answer:

  1/4 of the credit

Step-by-step explanation:

The problem statement tells you n=5. Putting that into the expression for lost credit, you get ...

  1/(5-1) = 1/4

of the credit is lost for a question with 1 wrong answer.

You will lose 1/4 of the credit.

Reika [66]3 years ago
5 0

Answer:

The credit will you lose for the part of question is 1/4 or 25%.

Step-by-step explanation:

Consider the provided information.

It is given that, if you submit an incorrect answer to a multiple-choice question with n options, you will lose 1/(n−1) of the credit for that question.

Suppose the given multiple choice question has 5 answer. So for one wrong answer the loss will be:

Substitute the value of n=5 in above formula.

\frac{1}{n-1} \\\frac{1}{5-1} \\\frac{1}{4}=0.25

That means you will lose 1/4 or 0.25credit.

Now convert it into %.

\frac{1}{4}\times 100=25\%

Hence, the credit will you lose for the part of question is 1/4 or 25%.

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Tamiku [17]

Answer:

288J

Step-by-step explanation:

recall the formula for kinetic energy

KE = (1/2) mv²

where m is the mass (= 4kg)  and v is the velocity(=12 m/s)

hence

KE = (1/2) (4)(12)² = 288J

7 0
3 years ago
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strojnjashka [21]
Answer:
The rational number is : 37/140

Explanation:
The first number given is three sevenths which can be written as 3/7
The second number given is one tenth which can be written as 1/10

Now, we want to get the midpoint between these two numbers. The midpoint can be calculated as follows:
midpoint = (first number + second number) / 2
midpoint = [(3/7) + (1/10)] / 2 
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Hope this helps :)
4 0
3 years ago
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40 Points!!! Help please!! Will give Brainliest!!!
Marta_Voda [28]

Answer:

3/8 sq. units


Step-by-step explanation:

The formula for area for a trapezoid is

Area = (1/2)*(base1+base2)*height

Area = (1/2)*(1/2 + 1/4) * 1

Area = (1/2)*(2/4 + 1/4)

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4 0
3 years ago
3 5/6 x 8 as a fraction
kirza4 [7]

Answer: 92/3 OR 30 2/3 ??

Step-by-step explanation:

3 0
3 years ago
Priya measured the length of lizard to be 11 cm. The actual length is 12 cm. Find the % error.
Aleksandr [31]

Answer:

8.33%

Step-by-step explanation:

Formula for percent error:

|\frac{observed value - expected value}{expected value} | * 100%

Using this formula, we get:

|\frac{11-12}{12} |* 100 = \frac{100}{12} = 8.33

If you found this answer helpful please consider leaving 5 stars, giving it a like, or if you asked this question, mark this answer as Brainliest. Thanks!

8 0
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