Question

give step by step explanation​

Answer 1

(4^2+3^2)/5^2

(since it is raised to the power of a negative value, you take its reciprocal)

(16+9)/25

25/25 = 1

Answer 2

Step-by-step explanation:

$[(\frac{1}{4} )^{-2} +(\frac{1}{3} )^{-2} ]$ ÷ $(\frac{1}{5} )^{-2}$

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

$[\frac{4^{2} }{1^{2} } +\frac{3^{2} }{1^{2} } ]$ ÷ $\frac{5^{2} }{1^{2} }$

(16 + 9) ÷ (25)

25 ÷ 25 = 1

Answer = 1

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