Sara used to make $8 per hour babysitting.She now makes $10.50 per hour. What is her percent increase to the nearest percent?
2 answers:
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Answer:
or
, where
Step-by-step explanation:
The given trigonometric equation is:
By the zero product principle;
Either or
When , then
When , then
This implies that:
Therefore the general solution is or
, where
