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Lelu [443]
3 years ago
15

1. What is the probability of getting a red marble out of a bag when there are 4 red

Mathematics
2 answers:
forsale [732]3 years ago
5 0

Answer:

1/3

Step-by-step explanation:

The total number of marbles is

4red+ 3 green + 5 blue = 12 marbles

P(red) = number of red/ total

          = 4/12

          =1/3

Vesna [10]3 years ago
5 0

Answer:

4 + 3 + 5 = 12

3/12

1/4

Step-by-step explanation:

the probability of getting red is dividing  the number of red marbles by the total number of marbles.

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A cube with side length mmm has a volume of 343343343 cubic centimeters. The following equation shows the volume of the cube.
MatroZZZ [7]

Answer:7cm

Step-by-step explanation:

m^3=343

Take the cube root of both sides

m=7

6 0
3 years ago
A statistic is said to be unbiased if
xxMikexx [17]

Answer:

A statistic is said to be unbiased if the mean of its sampling distribution is equal to the true value of the parameter being estimated.

Step-by-step explanation:

A parameter is a number that describes the population.  

A statistic is a number that describes a sample.  

A statistic used to estimate a parameter is unbiased if the mean of its sampling distribution is exactly equal to the true value of the parameter being estimated. For example, the mean of a sample is an unbiased estimate of the mean of the population from which the sample was drawn.

A statistic is biased if its expected value is not equal to the parameter.

8 0
3 years ago
Use long division to determine the decimal equivalent of 8/9
pickupchik [31]

See image below it keeps going

5 0
3 years ago
What is the difference 2x-3/3x^2-x+2/6x
Paul [167]

Answer: D

Step-by-step explanation:

To find the difference, we want to make sure both denominators are equal.

\frac{(6x)(2x-3)}{(6x)(3x^2)} -\frac{(3x^2)(x+2)}{(3x^2)(6x)}

Now that the denominators are equal, we can distribute and multiply out.

\frac{12x^2-18x}{18x^3} -\frac{3x^3+6x^2}{18x^3}

With the fractions multiplied out, we can actually put it into one large fraction.

\frac{12x^2-18x-3x^3-6x^2}{18x^3}

Let's subtract the top expression.

\frac{-3x^3+6x^2-18x}{18x^3}

This may seem like our final answer, but we can actually factor out an 3x in the numerator and denominator.

\frac{(3x)(-x^2+2x-6)}{(3x)(6x^2)}

With the 3x factored out, they cancel out because 3x/3x=1.

Our final answer is:

\frac{-x^2+2x-6}{6x^2}

5 0
3 years ago
If ABC ~ DEF, What is the scale factor of ABC to DEF?
Murljashka [212]

Answer:

3/1

Step-by-step explanation:

Using the similarity statement, ∠A corresponds with ∠D; ∠B corresponds with ∠E; and ∠C corresponds with ∠F.

The only angle of triangle DEF we have is ∠E, which is 7.  This corresponds with ∠B; this makes the scale factor of ABC to DEF

21/7 = 3/1.

3 0
4 years ago
Read 2 more answers
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