Question

plzzz solve it guys....
and plzz follow me on insta
__.sweet._.kristy.__23​

Answer 1

1. 1+1/1. = 2

2. 4/5^ 3*-2/3

= 4/5^-2

= 5/4 ^2

= 25/16

plz mark as brainlist

Answer 2

Answer:

Step-by-step explanation:

ANSWER:-

4 th part:-

$\dfrac{2^0+7^0}{5^0}$

We need to know that:-

• Any number raised to the power zero is one.
• And any number raised to the power one, remains same.

You may like to understand more, so you may visit this link.

https://brainly.in/question/19702570

Now, let us continue.

$\dfrac{1+1}{1}$

$=\dfrac{2}{1}=2$ is the answer.

5th part:-

$(\dfrac{64}{125})^{\dfrac{-2}{3}}$

So, we know that:-

• Cube root of 64 is 4.
• Cube root of 125 is 5.

So, combining all, we get

$(\dfrac{4}{5})^{\dfrac{-2}{3} \times 3}$

$= (\dfrac{4}{5})^{-2}$

$= \dfrac{25}{16}$ is the answer.

Note:-

• The thing to note was:-
• We always combine the powers of denominator to cancel it.
• Also, negative power reciprocals the fraction.