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3 years ago

How do you simplify (1/2)^2 ● 1/2 ● (1/2)^3

Mathematics

1 answer:

aliya0001 [1]3 years ago

4 0

Answer:

1 /64

Decimal Form:

0.015625

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Graph the two equations in the system; y = 2x + 1 y=-3x +6

NeTakaya

Answer:

Hello!

Step-by-step explanation:

The ordered pair answer is (1, 3) And I have attached a picture of the graph!

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2 years ago

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Assume that random guesses are made for seven multiple choice questions on an SAT test, so that there are nequals7 trials, eac

Ket [755]

Answer:

$P(X < 4)=0.1335+0.3115+0.3115+0.1730=0.9295$

Step-by-step explanation:

Question assumed: Find the probability that the number x of correct answers is fewer than 4.

1) Previous concepts

The binomial distribution is a "DISCRETE probability distribution that summarizes the probability that a value will take one of two independent values under a given set of parameters. The assumptions for the binomial distribution are that there is only one outcome for each trial, each trial has the same probability of success, and each trial is mutually exclusive, or independent of each other".

2) Solution to the problem

Let X the random variable of interest, on this case we now that:

$X \sim Binom(n=7, p=0.25)$

The probability mass function for the Binomial distribution is given as:

$P(X)=(nCx)(p)^x (1-p)^{n-x}$

Where (nCx) means combinatory and it's given by this formula:

$nCx=\frac{n!}{(n-x)! x!}$

And we want to find this probability:

$P(X < 4)=P(X=0)+P(X=1)+P(X=2)+P(X=3)$

$P(X=0)=(7C0)(0.25)^0 (1-0.25)^{7-0}=0.1335$

$P(X=1)=(7C1)(0.25)^1 (1-0.25)^{7-1}=0.3115$

$P(X=2)=(7C2)(0.25)^2 (1-0.25)^{7-2}=0.3115$

$P(X=3)=(7C3)(0.25)^3 (1-0.25)^{7-3}=0.1730$

$P(X < 4)=0.1335+0.3115+0.3115+0.1730=0.9295$

3 0

4 years ago

Rosey knows that she needs a minimum of $1776 each month to pay all of her expenses. If she works 37 hours a week, with 4 weeks

solong [7]

Answer: $12 an hour

Step-by-step explanation:

Rosey works 37 hours a week and 4 weeks in a month.

Total hours are:

= 37 * 4

= 148 hours

In order to at least cover the $1,776 in expenses she incurs every month, Rosey's hourly pay must be:

= expenses / working hours in month

= 1,776 / 148

= $12 an hour

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3 years ago

One integer is 2 less than another. The sum of their squares is 34. Find the integers.

adelina 88 [10]

Answer:

no se bro no se inglés así no se que bas a aaer

Step-by-step explanation:

pero puedes consultar por

8 0

3 years ago

Round 829 to the nearest tenth

Ainat [17]

829 rounded to the nearest tenth is 830

If the 9 would be a 4 or lower, then it would be 820, but in this case, it's a number larger than 5, so it would be 830.

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4 years ago

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