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3 years ago

I need help! PLSS THANK YOUU SMM

Mathematics

2 answers:

Black_prince [1.1K]3 years ago

6 0

You should do the FOIL method! let’s walk through it!

(w+2)(w-3)

step 1. F means to multiply the front letter or number whichever it might be inside the parentheses, in this cause it’s w. so it would be (w)(w)= w^2

step 2. O means to multiply the outer letter or number whichever it might be inside the parentheses, in this cause it’s w and -3. so it would be (w)(-3)= -3w

step 3. I means to multiply the inner letter or number whichever it might be inside the parentheses, in this cause it’s w and 2. so it would be (w)(2)= 2w

step 4. L means to multiply the last letter or number whichever it might be inside the parentheses, in this cause it’s 2 and -3. so it would be (2)(-3)= -6
*REMEMBER a positive (+) * a negative (-) is a negative (-)

now you have the equation: W^2 -3w + 2w -6 = w^2 -w -6

seropon [69]3 years ago

4 0

(W^2-1) if I am wrong plz let me know

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tatyana61 [14]

Answer:

$P(x > 1\ and\ x < 2) = \frac{4}{25}$

Step-by-step explanation:

Given

$S = \{1,2,3,4,5\}$

$n(S) = 5$

Required

$P(x > 1\ and\ x < 2)$

$P(x > 1\ and\ x < 2)$ is calculated as:

$P(x > 1\ and\ x < 2) = P(x > 1) * P(x < 2)$

Since it is a probability with replacement, we have:

$P(x > 1\ and\ x < 2) = \frac{n(x > 1)}{n(S)} * \frac{n(x < 2)}{n(S)}$

For x > 1, we have:

$x > 1 = \{2,3,4,5\}\\$

$n(x > 1) = 4$

For x < 2, we have:

$x < 2 = \{1\}$

$n(x < 2) = 1$

$P(x > 1\ and\ x < 2) = \frac{n(x > 1)}{n(S)} * \frac{n(x < 2)}{n(S)}$

becomes

$P(x > 1\ and\ x < 2) = \frac{4}{5} * \frac{1}{5}$

$P(x > 1\ and\ x < 2) = \frac{4}{25}$

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2 years ago

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yKpoI14uk [10]

Use this diagram, it might help.

From the inside, whatever that layer is, it can be any of the layers outside of it.

All whole numbers can be a rational number, but not all rational numbers be a whole number.

Kind of like all squares can be rectangles, but not all rectangles can be a square.

The whole number has all the attributes of a rational number, but not all rational numbers have all of the attributes of a whole number.

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