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3 years ago

Help please..............

Mathematics

2 answers:

rosijanka [135]3 years ago

6 0

B: (f=g)(x)=-2x² - 2x +8 is correct

Alex777 [14]3 years ago

5 0

The answer is rather symbol just combine the like terms! -2X^2 has no like terms for it is the only exponent so cancel out C because it doesn't start with -2X^2. Next we add all variables with X but no exponent so 3X and -5x Add those together to get 3X +-5X which is -2X because the + is cancelled out so ghe equation is 3X-5X which equals -2X so get rid of everything but B. Finally to confirm it is B add all the basic numbers so the five and three to get eight. So (f+g)(x) = -2X^2 -2X + 8. The answer is B. (You guys said it was A so I changed it but now I know I am right.)

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Use set notation to write the members of the following set, or state that the set has no members. Odd numbers between 2 and 82 t

adell [148]

Let the set of all Odd multiples of 9 between 2 and 82 be denoted by D, then, using set-builder notation,

$D=\{ 18n+9 \mid n \in \mathbb{N}, 0\le n\le 4 \}$

The odd multiples of 9, $m$ , in the range $2\le m \le 82$ form the set

$\{9,27,45,63,81\}$

Each member of the set is a term of the arithmetic progression

$U_n=18n+9$

where the values of $n$ range from 0 to 4, or $0\le n\le 4$

Putting these facts together, we get the result

$D=\{ 18n+9 \mid n \in \mathbb{N}, 0\le n\le 4 \}$

Learn more about set-builder notation here: brainly.com/question/17238769

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3 years ago

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Stella [2.4K]

Answer:

Step-by-step explanation:

there are 4 sixes soo

$6^{4}$

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valina [46]

Answer:

Step-by-step explanation:

I hope you dont have to show your work because I am not showing how you do all of those aha.

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3 years ago

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boyakko [2]

Answer:

$\frac{2}{7}$

Step-by-step explanation:

These questions required just careful reading of it.

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3 years ago