What are the amplitude, period, phase shift, and midline of f(x)=-3sin(4x-n)+2?
a) amplitude: 3; period: pie/2; phase shift: x= pie/4; midline: y=2
b) amplitude: -3; period: pie/2; phase shift: x= pie/2; midline: y=2
c) amplitude: 2; period: pie/4; phase shift: x= pie/4; midline: y=-3
d) amplitude: 2; period: pie/4; phase shift: x= pie/2; midline y=3

What is the least common factor of 6 and 8

The linear combination method is applied to a system of equations as shown. 4(.25x + .5y = 3.75) → x + 2y = 15 (4x – 8y = 12) → x – 2y = 3 2x = 18 what is the solution of the system of equations? (1,2) (3,9) (5,5) (9,3)

Ascientist wants to use a model to present the results of his detailed scientific investigation. why would a model be useful? a )because the model makes the concepts easier to understand b) because the model is easy to put together and to use c) because the model prevents other scientists from asking questions d) because the model requires the audience to pay full attention to it i don't know what to choose because between a and d a is much more likely than d because it only wants to get the attention of the audience. i'm confuse.