Question

plz answer the question correctly with steps I will surely make you as brainlist surely

Plz match the following ​

Answer 1

Answer:

1 - (c), 2 - (a), 3 - (e), 4 - (b), 5 - (d)

Step-by-step explanation:

1. Cube root of $x^6y^{-3}$ = $\sqrt[3]{x^6y^{-3}}$ = $\sqrt[3]{(x^2y^{-1})^3}$ = $x^2y^{-1}$ = $\frac{x^2}{y}$ (Option c)

2. Given that x men do the work in y days

   So, work done by x men in 1 day = $\frac{1}{y}$ part of work

   Work done by 1 man in one day = $\frac{1}{x}$ of $\frac{1}{y}$ = $\frac{1}{xy}$ of total work

   Time taken for one man to finish the work = $\frac{1}{\frac{1}{xy}}$ days = $xy$ days (Option a)

3.

    $\frac{x^7y^{-5}*x^{-5}y^3}{x^3y^{-3}}\\\\=x^7y^-^5*x^-^5y^3*x^-^3y^3\\\\=x^{7-5-3}y^{-5+3+3}\\\\=x^{-1}y^1\\\\=\frac{y}{x}$

(Option - e)

4. Given, A does job in x days

   So, work done by A in 1 day = $\frac{1}{x}$ part of work

   Given, B does job in y days

   So, work done by B in 1 day = $\frac{1}{y}$ part of work

   Part of work done by A and B in 1 day = $\frac{1}{x}+\frac{1}{y}$ = $\frac{x+y}{xy}$

  Time taken to finish work by A and B together = $\frac{1}{\frac{x+y}{xy}}$ = $\frac{xy}{x+y}$ days (option - b)

5.

    $\frac{-3y^3x^2-3y^2x^3}{-3x^3^y^3}\\\\= \frac{-3x^2y^2(y+x)}{-3x^3y^3}\\\\=\frac{y+x}{xy}$

(Option - d)

Hope it helps!!! Please mark Brainliest!!!

Answer 2

Answer:

1c, 2a, 3e, 4b, 5d