Question

$(\frac{27}{8} ) ^{ - \frac{2}{3} }$
please can someone help me, thanks in advance.​

Answer 1

Answer:

$\huge{\boxed{7\frac{3}{4}}} </p><p>$

Step-by-step explanation:

(8/27)^(- 2/3) - ( 1/3 )^(-2) - 7^(0)

⇒ ( 2/3 )^(- 3 × 2/3 ) - 3^2 - 1

⇒ ( 2/3 )^( -2 ) - 9 - 1

⇒ 9/4 - 10

⇒ ( 9 - 40 )/4

⇒ - 31/4

The answer is -31/4 converted to mixed fraction.

FORMULAS :

a^0 = 1

a^b/a^m = a^( b - m )

Answer 2

Answer:

2.70833333333

Step-by-step explanation:

i did math