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murzikaleks [220]
3 years ago
8

Alex rolls a six-sided number cube 570 times. Approximately how many times can he expect to roll a 5?

Mathematics
2 answers:
Annette [7]3 years ago
8 0

1)First determine the probability of rolling a 5

2)Since you can only roll a 5 once in a 6-sided cube the probability is ⅙ or about 0.1667

3)Multiply the probability and the total number of rolls

.1667 * 570= 95

Answer : 95 times

madreJ [45]3 years ago
5 0

Answer:

95 times

Step-by-step explanation:

Probability of rolling a 5 =1/6

So no. of times 5 is expected when the number cube is rolled out 570 times = 570*1/6 = 95 times

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Step-by-step explanation:

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Answer:

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stepladder [879]

Answer:

-1/8

Step-by-step explanation:

lim x approaches -6     (sqrt( 10-x) -4) / (x+6)

Rationalize

   (sqrt( 10-x) -4)      (sqrt( 10-x) +4)

    ------------------- * -------------------

       (x+6)                 (sqrt( 10-x) +4)

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(x+6) (sqrt( 10-x) +4)    

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-------------------

(x+6) (sqrt( 10-x) +4)

Factor out -1 from the numerator

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Cancel x+6 from the numerator and denominator

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(sqrt( 10-x) +4)

Now take the limit

lim x approaches -6    -1/ (sqrt( 10-x) +4)

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                                      -1/ (sqrt(16) +4)

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5 0
3 years ago
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A food store makes a 11–pound mixture of peanuts, almonds, and raisins. The cost of peanuts is $1.50 per pound, almonds cost $3.
arlik [135]
Given: 11-pound mixture of peanuts, almonds, and raisins
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peanuts - 1.5 per pound
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raisins - 1.5 per pound

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a + p + r = 11 lbs
a + 2a + r = 11 lbs
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1.5(2a) + 3a + 1.5r = 21
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