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svet-max [94.6K]
4 years ago
12

A class quiz has 5 True/False questions. The correct answers are T, T, F, F, and T, in that order. John answered the questions r

andomly and is now wondering if he will pass the quiz. He needs to have at least 3 correct answers. John used a calculator to generate random numbers from 1 to 100. He let odd numbers stand for True and even numbers stand for False. He recorded the results in the table. What is the experimental probability that John passed the quiz? Trial 1 is fail with numbers 22, 33, 18, 45, 80. Trial 2 is pass with numbers 11, 3, 72, 98, 67. Trial 3 is fail with numbers 28, 36, 43, 85, 71. Trial 4 is pass with numbers 27, 56, 41, 90, 55. Trial 5 is fail with numbers 12, 34, 20, 59, 31. Trial 6 is pass with numbers 11, 7, 50, 28, 32. Trial 7 is fail with numbers 17, 44, 76, 39, 20. Trial 8 is pass with numbers 2, 93, 53, 38, 29. Experimental probability =
Mathematics
2 answers:
Artist 52 [7]4 years ago
6 0

Answer:

1/2

Step-by-step explanation:

4/8 trials are pass.

finlep [7]4 years ago
3 0

Answer:

1/2

Step-by-step explanation:

EDG2020

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Answer:

C

Step-by-step explanation:

Equation:

\frac{x}{-2}+\frac{y}{10}=1\\\\\frac{x*5}{-2*5}+\frac{y}{10}=1\\\\\frac{-5x}{10}+\frac{y}{10}=1\\\\-5x+y=10\\\\y=5x+10

3 0
4 years ago
140 subtracted from the square of a number the result is three times the number find the negative solution
natima [27]

Answer:

Suppose~that~the~number~is~x.\\According~to~question,\\x^2-140=3x\\or, x^2-3x-140=0\\From~the~quadratic~formula,\\x = \frac{-(-3)+\sqrt{(-3)^2-4(1)(-140)} }{2(1)} ~and ~x= \frac{-(-3)-\sqrt{(-3)^2-4(1)(-140)} }{2(1)} \\or, x = \frac{3+\sqrt{9+560} }{2}~and~x=\frac{3-\sqrt{9+569} }{2}\\or, x = \frac{3+\sqrt{569} }{2}~and~x=\frac{3-\sqrt{569} }{2}\\So,~the~required~negative~number~is~\frac{3-\sqrt{569} }{2}.

5 0
3 years ago
Which Algebraic expressions have like terms?
chubhunter [2.5K]
The third option has like terms as they can be added based on the term. For example numbers with x, x^2, x^3 etc can be added together. For example x+x can be added but x+x^2 can’t. They have different terms that make them different.
6 0
3 years ago
Read 2 more answers
1+4v<9 can you guys help me?
Elena L [17]

Answer:

v < 2

Step-by-step explanation:

1+4v<9

Subtract 1 from each side

1-1+4v<9-1

4v < 8

Divide each side by 4

4v/4 <8/4

v < 2

4 0
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Tanya [424]

Answer:

False.

Step-by-step explanation:

5 0
4 years ago
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