Answer:
Step-by-step explanation:
Given

comparing it with standard equation 
so 4a=1

so Focus of parabola is (0,0)
directrix
y=-a
here 
Step-by-step explanation:
The first set is equivalent.
We obtain the right-hand side by swapping places of the terms.
Answer:
t ≥ 10
Step-by-step explanation:
Since the student needs at least 10 hours of driving time, they need greater than or equal to 10 hours to pass.
The answer would be C. HIS FILING STATUS.
Given:
Single father.
income of 50,000
interest income from CD of 1,000
filing status: HEAD OF HOUSEHOLD.
In using 1040EZ form for filing his taxes, must file as ''SINGLE''. This form can also be used by married individuals who are filing under the status of "Married filing jointly.".
Since Spencer is filing under the status of HEAD OF HOUSEHOLD, he should use either 1040 or 1040A.