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3 years ago

URGENT PLEASE HELP Definitely need the correct answers as I am failing precalculus

Mathematics

1 answer:

dangina [55]3 years ago

6 0

Answer (first one):

${x|-2\leq x\leq 8}$

Step-by-step explanation:

think of f(x) as y.

$y>-2$

Now find the parts on the x axis that correspond with parts on the y value that are greater than -2.

$x\geq -2 \\x \leq 8$

This would be all of the numbers between -2 and 8 (inclusive).

The reason it is inclusive is because the arrow ends are shaded in.

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How do you transpose a number

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Answer:

Transposing a number is a type of error where two digits swap position in the sequence. An example would be to enter 13 instead of the desired 31. It could also be the error of dropping a needed zero as in writing 15 instead of the desired 150.

Step-by-step explanation:

Unless by "number" you mean musical score. Then transposing is rewriting the score in a new key.

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2 years ago

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3 years ago

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What is the simplest form of this expression? (x + 7)(3x − 8)

Komok [63]

Answer: 3x^+13x-56
Steps
1). Multiply the parentheses
(X+7)(3x-8)
=X x 3x -8x+7 x 3x -7 x 8
2). Multiply
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3). Do like terms
3x^+13x - 56
4). Solution
[3x^+13x - 56]

-HOPE THAT HELPEDED <3

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4 years ago

Yuki is buying bunches of carrots.

kirill115 [55]

Answer:

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Step-by-step explanation:

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3 years ago

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"If the probability of an event is observed repeatedly during independent repetitions than the ratio of the observed to the tota

PIT_PIT [208]

Answer:

This is the Law of large Numbers.

Step-by-step explanation:

The Law of Large numbers states that as the sample size is increased the sample mean value gets closer to the population mean.

That is, as n → ∞ the value of $\bar x$ → μ.

For instance, the theoretical probability of getting a Heads in a toss of a coin is, 0.50.

To check this perform an experiment whether the coin is tossed 20 times.

The probability of heads will be somewhere near 0.50.

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The probability of heads will be now closer to 0.50.

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The probability of heads will be approximately equal to 0.50.

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Thus, the complete statement is:

This is the Law of large Numbers.

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3 years ago

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