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Naddik [55]
3 years ago
9

Two pens are selected at random from a pen stand containing three blue and two black pens. The table and the relative-frequency

histogram show the distribution of the number of blue pens chosen. Find the probability.
Mathematics
1 answer:
HACTEHA [7]3 years ago
3 0
The probabilty of picking a blue pen is one higher than picking a black pen 
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2. A fair dice is rolled. What is the probability that a number divisible by 3 is rolled?
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Answer: 2

Step-by-step explanation:

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WHAT IS X³-27 SIMPLIFIED
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Answer:

<u>It</u><u> </u><u>is</u><u> </u><u>(</u><u>x</u><u> </u><u>-</u><u> </u><u>3</u><u>)</u><u>³</u><u> </u><u>-</u><u> </u><u>9</u><u>x</u><u>(</u><u>3</u><u> </u><u>-</u><u> </u><u>x</u><u>)</u>

Step-by-step explanation:

Express 27 in terms of cubes, 27 = 3³:

=  {x}^{3}  -  {3}^{3}

From trinomial expansion:

{(x - y)}^{3}  = (x - y)(x - y)(x - y) \\

open first two brackets to get a quadratic equation:

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expand further:

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take y to be 3, then substitute:

( {x}^{3}  - 3^3) =  {(x - 3)}^{3}  - 9x(3 - x)

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viva [34]

Answer:

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