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3 years ago

PLEASE HELP Type in expanded form. Use parentheses to indicate multiplication. (2r)³

2 answers:

5 0

It would be 8 $r^{3}$ because you have to multiply the exponent by each of the numbers exponents. you may not see it but 2 has a 1 as an exponent and so does r. 1 time 3 is 3 for each therefore each number now has an exponent of 3 and we got rid of the outside exponent. now all you have to do is simplify the 2 to the power of 3 which gives you 8 and that is all

aksik [14]3 years ago

5 0

I think the answer would be 2000

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A fair coin is tossed repeatedly. What is the probability that three heads in a row will occur before a tail followed by two hea

Masteriza [31]

The probability that you can get N heads in a row would be:

Let p be the probability of flipping a heads. Let x be number of flips needed to achieve h consecutive heads. The solution is E(x) = (1−p^h) / (p^h(1−p))

This expression may be derived as follows. The probability of being successful immediately is p^r. However, one might get a tails immediately. In that case, the number of flips needed is 1+E(x) (one flip has been used and we are back to the original position). We might get a heads and then a tails. In this case two flips have been used and we are back to the original position. Continue this up to h−1 heads followed by a tails in which case h flips have been used and we are back to the original position.

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3 years ago

Please Help Me quick

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Answer:

I think it is 4.5/6.5

Step-by-step explanation:

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3 years ago

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Mkey [24]

Answer:

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Step-by-step explanation:

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6 0

3 years ago

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Please help me with these 3 questions!

juin [17]

Answer:

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3 years ago

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babymother [125]

Answer with explanation:

1.Mean of a Data set

$=\frac{\text{Sum of all the observation}}{\text{total number of observation}}$

$=\frac{10+9+11+8+10+12+2+7+8+0+12+10+8+11+3+12+6+7+4+3}{20}\\\\=\frac{153}{20}\\\\=7.65$

2. Range = Maximum value in two conferences - Minimum value in two conference

= 12 - 0

=12

The mean number of wins for teams from the two conferences is 7.65.

The range in wins is 12.

3 0

3 years ago

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