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3 years ago

A bag contains 4 red marbles, 2 blue marbles, 1 purple marble, and 3 green marbles.

Mathematics

1 answer:

STatiana [176]3 years ago

7 0

Answer:

10 outcomes

Step-by-step explanation:

The number of outcomes is the number of marbles in the bag since we are taking out one marble

4+2+1+3 = 10

There are 10 outcomes

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For a sample of n = 30 scores, X = 45 corresponds to z = 1.50 and X = 40 corresponds to z = +1.00. What are the values for the s

TEA [102]

Answer:

Step-by-step explanation:

Here, it is given that the Z – score corresponding to the score X = 45 is 1.5 and the Z – score corresponding to the score X = 40 is...

Z = $\frac{X - M}{S}$

So:

1/ 1.5 = $\frac{45 - M}{S}$ and 1 = $\frac{40 -M}{S}$ . solve the both equations, we found out:

<=> S = 10

=> M = 30

Hence, mean is:

M = 45 -1.5S = 45 - 1.5 (10) = 30

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3 years ago

Simplify ( 1/2A + 1/2B )^2

zysi [14]

Notice that both A and B are multiplied by (1/2).

Thus, the given expression can be re-written as [(1/2)(A+B)]^2.

Square the (1/2) and the (A+B) separately, and then multiply together the resulting squares:

(1/4)(A^2 + 2AB + B^2)

4 0

3 years ago

Read 2 more answers

Classwork Let's tick (V) the correct answer.

Fynjy0 [20]

Answer:

Option i

Step-by-step explanation:

The given expression is , 5x² - 3xy .

We can clearly see that there are two terms in the expression , 5x² and 3xy .

Therefore option (i) is correct .

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3 years ago

If c ī b, what is m<2?

natulia [17]

Answer:

<2 = 90

Step-by-step explanation:

If the lines are perpendicular, the angles are 90 degrees

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4 years ago

Using what you have learned about solving systems of equations, find the number that represents the apple, banana, and cherry.

erica [24]

it would be convenient if you actually give us the equation

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