2a-8b(-7-a)=6 answer
1 answer:
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Answer:
62.34
Step-by-step explanation:
Substitute n = 0 to n = 5 into the expression and sum the terms, that is
3 [ +
+
+
+
+
]
= 3 [ 1 + +
+
+
+
]
= 3( )
= 3 × 20.781
= 62.34 ( to the nearest hundredth )