Tomas wrote the equation y=3x+3/4. when sandra wrote her equation ,they discovered that her equation had all the same solutions as tomas’s equation

The graph shows the function f(x) = (2.5)x was horizontally translated left by a value of h to get the function g(x) = (2.5)x–h.

Researchers were interested in whether relaxation training decreases the number of headaches a person experiences. they randomly assigned 20 participants to a control group or a relaxation training group and noted the change in number of headaches each group reported from the week before training to the week after training. which statistical analysis should be performed to answer the researchers' question?

Write the sine and cosine values of a, b, respectively, in the figure for (1) and (2) + explanation.