Question

Please answer me
All of them ​

Answer 1

Step-by-step explanation:

14. [(1/3)^-2 - (1/2)^-3] + (1/4)^-2

=> [(1/(3)^2) ] - (1/(2)^3)] + (1/(4)^2)

=>

$( \frac{1}{9} - \frac{1}{8} ) + \frac{1}{16}$

$\frac{8 - 9}{72} + \frac{1}{16}$

$\frac{ - 1 + 4.5}{72} \\ \\ \frac{3.5}{72} \\ \\ \frac{35}{720} \\ \\ 0.048(appox)$

15. (3^0 + 4^-1 )x 2^2

=> 1 + 1/4 x 4

=> 5/4 x 4

=> 5

I know that's it sorry I couldn't do all

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