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2 years ago

HELP ME PLEASE RNNN FASTTT

Mathematics

1 answer:

timama [110]2 years ago

6 0

Answer:

The first three are functions

Step-by-step explanation:

4th one fails the Vertical line test.

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(−5)3x7(yz)4 / (3)2x2y8z2

g100num [7]

Answer:

$\dfrac{(-5)3x^7(yz)^4}{(3)2x^2y^8z^2}=\dfrac{-5x^5z^2}{2y^4}$

Step-by-step explanation:

Given:

The expression to simplify is given as:

$\frac{(-5)3x^7(yz)^4}{(3)2x^2y^8z^2}$

In order to simplify this, we have to use the law of indices.

1. $(ab)^m=a^mb^m$

So, $(yz)^4=y^4z^4$

Substitute this value in the above expression. This gives,

$=\dfrac{(-5)3x^7y^4z^4}{(3)2x^2y^8z^2}\\\\\\=\dfrac{-15x^7y^4z^4}{6x^2y^8z^2}......(-5\times 3=15\ and\ 3\times 2=6)$

Now, we use another law of indices.

2. $\frac{a^m}{a^n}=a^{m-n}$

So, $\frac{x^7}{x^2}=x^{7-2}=x^5,\frac{y^4}{y^8}=y^{4-8}=y^{-4}, \frac{z^4}{z^2}=z^{4-2}=z^2$

Substitute these values in the above expression. This gives,

$=\frac{-15}{6}\times x^5\times y^{-4}\times z^2\\\\=\frac{-5x^5y^{-4}z^2}{2}$

Finally, we further simplify it using the law $a^{-m}=\frac{1}{a^m}$

So, $y^{-4}=\frac{1}{y^4}$

Therefore, the given expression is simplified as:

$\dfrac{(-5)3x^7(yz)^4}{(3)2x^2y^8z^2}=\dfrac{-5x^5z^2}{2y^4}$

5 0

3 years ago

Trigonometria del ángulo<br>3 Calcula las razones<br>agudo de mayor amplitud de la figura

RSB [31]

Answer:

lol

Step-by-step explanation:

6 0

2 years ago

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if you guys can make it out can you help me find the length of the small right triangle? sorry its really bad drawn

Taya2010 [7]

Answer:

32.0

Step-by-step explanation:

i really can't explain it but comment if need more help

and can u take better picture

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2 years ago

Who can help me with 17 and 18

nikklg [1K]

Answer:

correct statements in Q no. 17 are;

0.1 < 0.125

0.125 > 0.12

Answers for Q no. 18;

4.19
4.2

Step-by-step explanation:

8 0

2 years ago

Which quadrilaterals do not have parallel sides? rhombus trapezoid quadrilateral isosceles trapezoid

OLEGan [10]

So what is a quadrilateral something that has four sides. So as long as the sides DON't intersect they're fine but. A rhombus is parallel the sides won't cross. Trust me, this is a rush job. a trapezoid has only ONE parallel side but is it still parallel? It's the last option.<span />

7 0

3 years ago

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