What is the amplitude of the following function?
f(x) = – 7 cos(4x) +
3x10

In the diagram below? p is circumscribed about quadrilateral abcd. what is the value of x

How long must $542 be invested at a rate of 7% to earn $303.52 in interest? in a easier way

Given: lines a and b are parallel and line c is a transversal. prove: 2 is supplementary to 8 what is the missing reason in the proof? statement reason 1. a || b, is a transv 1. given 2. ∠6 ≅ ∠2 2. ? 3. m∠6 = m∠2 3. def. of congruent 4. ∠6 is supp. to ∠8 4. def. of linear pair 5. ∠2 is supp. to ∠8 5. congruent supplements theorem corresponding angles theorem alternate interior angles theorem vertical angles theorem alternate exterior angles theorem