Find the sine function that is represented in the graph. A. f(x)= 20sin (4x)
B. f(x)= 4sin (20x)
C. f(x)= 4sin (x)
D. f(x)= 20sin (x)

Taking algebra two apex courses and need with these questions

Rectangle leg this 11feet and perimeter of 38feet what is the width of the rectangle in feet

Statements reasons 1. ab ? cd; ad ? bc 1. given 2. ac ? ac 2. reflexive property 3. ? adc ? ? cba 3. ? 4. ? dac ? ? bca; ? acd ? ? cab 4. cpctc 5. ? dac and ? bca are alt. int. ? s; ? acd and ? cab are alt. int. ? s 5. definition of alternate interior angles 6. ab ? cd; ad ? bc 6. converse of the alternate interior angles theorem 7. abcd is a parallelogram 7. definition of parallelogram what is the missing reason in step 3?