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harkovskaia [24]
3 years ago
15

A test has multiple choice questions with 5 choices for each answer; only one answer is correct for each question. Suppose a stu

dent guesses the answer to each question. Assuming the guesses are independent, find the probability that the student will guess correctly when answering two questions. 1/5 1/10 1/25
Mathematics
2 answers:
mariarad [96]3 years ago
6 0
1 out of 5.

2/10=1/5 simplified
barxatty [35]3 years ago
3 0
1 / 5 is the correct answer since if your answering 2 questions there is a 2/10 probability 1/5
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A bag contains 26 tiles with letters A through Z. Find the probability of drawing three vowels with replacement. Find the probab
larisa86 [58]

Answer:

0.0071 & 0.004

Step-by-step explanation:

Total number of vowels 'V'=5

total number of alphabets= 26

therefore, P(V)=5/26

P(3 V's with replacement)= (5/26)³

                                             =0.0071

P(3 V's without replacement)=(5/26)(4/25)(3/23)

                                              =0.004

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B is the answer have a g00d day

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Write the number 3,2 and 8 in a addition sentence. Show two more ways to find the sum
Kisachek [45]
1.(3 + 2) + 8

2.5 + 8
4 0
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Citrus2011 [14]
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7 0
3 years ago
9x - 3 = 7 (x + 3) + 2n<br><br>answer and ur marked brainly master​
Anna007 [38]

Hey there!

9x - 3 = 7(x + 3) + 2n

➡️ 9x - 3 = 7(x) + 7(3) + 2n

➡️ 9x - 3 = 7x + 21 + 2n

ADD -7x to BOTH SIDES

2n + 7x + 21 + (-7x) = 9x - 3 + (-7x)

SIMPLIFY IT!

2n + 21 = 2x - 3

ADD -21 to BOTH SIDES

2n + 21 + (-21) = 2x - 3 + (-21)

SIMPLIFY THIS AS WELL!

2n = 2x - 24

DIVIDE 2 to BOTH SIDES

2n/2 = (2x - 24)/2

FINALLY SIMPLIFY THIS LAST STEP!

n = x - 12

Answer: n = x - 12

Good luck on your assignment and enjoy your day!

~Amphitrite1040:)

3 0
3 years ago
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