Answer:
8
Step-by-step explanation:
Substitute the given values into the expression
xy²
=
× 4 × (- 2)²
= 2 × 4
= 8
It took 32 minutes for Ella to go to school on Friday.
Step-by-step explanation:
Time for first four days in minutes,
30,28,34,31
Let x be the time on Friday
Average = 31 min
As we know

Multiplying both sides by 5;

It took 32 minutes for Ella to go to school on Friday.
Keywords: Average, Addition
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Assuming the sequence goes on like this 11,-33,99,-297,891,...,
its general formula is

So, the 9th term is