If sin θ = 1 over 4 and tan θ > 0, what is the value of cos θ? (1 point) Group of answer choices

negative square root of 15 over 4

square root of 15 over 4

square root of 15

negative square root of 15

Marcus needs to rewrite f(x) = x2 + 6x + 4 in vertex form.

Arepresentative from plan 1 wants to use the graph below to sell health plans for his company. how might the graph be redrawn to emphasize the difference between the cost per doctor visit for each of the three plans? the scale on the y-axis could be changed to 0–100. the scale on the y-axis could be changed to 25–40. the interval of the y-axis could be changed to count by 5s. the interval of the y-axis could be changed to count by 20s.

Can someone plz me with 11,12,13 plz show work