What is the directrix of the parabola defined by `(1)/(4)(y + 3) = (x − 2)^2`? a. `y = -(49)/(16)` b. `x = -(49)/(16)` c. `y = (47)/(16)` d. `x = (47)/(16)`

A.

Step-by-step explanation:

Since, the directrix of a parabola is,

y = k - p

Here, the given parabola,

By comparing,

We get,

k = - 3,

Hence, the directrix of the given parabola is,

Option 'A' is correct.

b. 153 students do not participate in sports and seventy-five 12th graders were surveyed

60°

step-by-step explanation:

the measure angle of c in an isosceles triangle abc is 60° because in isosceles triangle,the measures of all the angles is 60°.