Find the value of the expression. 125a^0 b^4 for a= 5/7 , b=− 1/5

Mathematics

1 answer:

bija089 [108]3 years ago

8 0

Substitute the values of a nad b to the expression:

$125a^0b^4=(125)\left(\dfrac{5}{7}\right)^0\left(-\dfrac{1}{5}\right)^4=(125)(1)\left(\dfrac{1^4}{5^4}\right)\\\\=(125)\left(\dfrac{1}{625}\right)=\dfrac{125}{625}=\dfrac{125:125}{625:125}=\dfrac{1}{5}$

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