I need answers please help

Mathematics

1 answer:

Veronika [31]2 years ago

8 0

Answer:

use a ti 84 calculator on stat

Step-by-step explanation:

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Find f/g for the functions provided. 10 points Help needed.

-BARSIC- [3]

ANSWER

$( \frac{f}{g} )(x) = \frac{1}{3} ( {x}^{2} + 3x + 9)$

EXPLANATION

The given functions are

$f(x) = {x}^{3} - 27$

and

$g(x) = 3x - 9$

$( \frac{f}{g} )(x) = \frac{f(x)}{g(x)}$

$( \frac{f}{g} )(x) = \frac{ {x}^{3} - 27}{3x - 9}$

$( \frac{f}{g} )(x) = \frac{ (x - 3)( {x}^{2} + 3x + 9) }{3(x -3 )}$

Cancel the common factors,

$( \frac{f}{g} )(x) = \frac{ {x}^{2} + 3x + 9 }{3}$

$( \frac{f}{g} )(x) = \frac{1}{3} ( {x}^{2} + 3x + 9)$

4 0

3 years ago

Janice has just bought a new pack of levels in her favorite game, Candy Crush. She knows that she can win a new level on the fir

worty [1.4K]

Answer:

0.0039 = 0.39% probability that she beats all 4 levels on the first try.

Step-by-step explanation:

For each level, there are only two possible outcomes. Either she can win the new level on the first try, or she cannot. The probability of winning a level on the first try is independent of any other level. This means that the binomial probability distribution is used to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$