Statistics:
a person's standardized test score on a test is given by the function z(x) = x-25/40, where x is the actual score on the test.
a) if the person's actual score was 600, what is the standardized score?
b) find the inverse of z(x)
c) using the inverse, if the person's standardized score was 2.5, what was the person's actual score on the test?

your work:
a)

b) step 1: switch the x & y
step 2: solve for y

c)

The sat and act tests use very different grading scales. the sat math scores follow a normal distribution with mean 518 and standard deviation of 118. the act math scores follow a normal distribution with mean 20.7 and standard deviation of 5. suppose regan scores a 754 on the math portion of the sat. how much would her sister veronica need to score on the math portion of the act to meet or beat regan's score?

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

You have learned about the six trigonometric functions, their definitions, how to use them, and how to represent them graphically. the sine, cosine, and tangent trigonometric functions can be paired with their reciprocal functions, cosecant, secant, and cotangent, respectively. think about how each function is related to its reciprocal function.how are the graphs of the reciprocal functions related to their corresponding original functions? what happens to the graphs of the reciprocal functions as x approaches the zeros of the original functions? describe how you would teach friends with different learning styles (visual-spatial, aural-auditory, verbal-linguistic, physical-bodily-kinesthetic, logical-mathematical, social-interpersonal, and solitary-intrapersonal) how to graph the reciprocal functions