Answer:
Step-by-step explanation: (The absolute value graphs shown are each symmetric to the y-axis, or have "vertical paper fold symmetry". Any vertical stretch or shrink or translation will maintain this symmetry. Any kind of right/left translation horizontally will remove the vertex from its position on the y-axis and thus destroy the symmetry.)
Answer:$2700
Step-by-step explanation: Really depends on the kind of interest, but you would take the initial amount, and multiply it by the APR for the amount of interest, then add the interest to the initial amount.
Π radians = 180°
5 π / 4 = 5 · 180° / 4 = 900° / 4 = 225°
cos ( 5π/4 ) = cos 225°
With the unit circle we can find the exact value:
cos 225° = - √2 / 2 ≈ - 0.7071
The answer to this question is D.
