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3 years ago

Which of these operations is not closed for polynomials?

Mathematics

1 answer:

Elodia [21]3 years ago

6 0

Answer:A

Step-by-step explanation:

Division isn’t mainly used in polynomials

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Hi please i nedd help with these questions .

Vlad1618 [11]

Answer:

Step-by-step explanation:

#1:

$\frac{18m^2u}{16n^3v^2} \div \frac{24m}{15nu^3}*\frac{8n^2v^3}{30m^3u}$

division sign means that we flip the fraction

$\frac{18m^2u}{16n^3v^2} * \frac{15nu^3}{24m}*\frac{8n^2v^3}{30m^3u}$

now we can multiply all the constants together and all variables

$m: (m^2)/(m*m^4) = (m^2)/(m^4) = 1/(m^2)\\u: (u * u^3)/(u) = (u^4)/(u) = u^3\\n: (n*n^2)/(n^3) = 1\\v: (v^3) / (v^2) = v\\(18*15*8)/(16*24*30) = \frac{3}{16}$

now we can combine all the parts

$\frac{3u^3v}{16m^2}$

#2:

$\frac{24a^2b^3c}{9bc^3}\div\frac{4a^5bc^3}{27a^3b^2c}$

$\frac{24a^2b^3c}{9bc^3}*\frac{27a^3b^2c}{4a^5bc^3}$

$a: (a^2 * a^3)/(a^5) = 1\\b: (b^3 *b^2)/(b*b) = b^3\\c: (c*c)/(c^3*c^3)= 1/(c^4)\\(24*27)/(9*4)= 18$

$\frac{18b^3}{c^4}$

3 0

3 years ago

Read 2 more answers

Determine the slope of each line.

viva [34]

Answer:

The slope of the given line is -4

Step-by-step explanation:

The formula of the slope of a line passes through points (x1, y1) and (x2, y2) is m = $\frac{y2-y1}{x2-x1}$

In the given figure

∵ The line passes through the points (-6, 5) and (-4, -3)

∴ x1 = -6 and y1 = 5

∴ x2 = -4 and y2 = -3

→ Substitute them in the formula of the slope above

∵ m = $\frac{-3-5}{-4--6}$

∴ m = $\frac{-8}{-4+6}$

∴ m = $\frac{-8}{2}$

∴ m = -4

∴ The slope of the given line is -4

3 0

3 years ago

Please show the work.

Mazyrski [523]

It would be d because the integer has to fit

6 0

4 years ago

Of the sixth graders in a school, 4/5 play at least one sport. Of those 2/3 play on a team. What fraction of 6th graders play a

artcher [175]

8/15 of 6th graders! 2/3 x 4/5 = 8/15

7 0

4 years ago

I need help with this problem because to me none of these answers are correct. There's no option for a written answer, so it mak

Zanzabum

Answer: its 24.

Step-by-step explanation:

X=27 - 3

X=24

6 0

3 years ago

Read 2 more answers