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Morgarella [4.7K]
3 years ago
7

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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