Suppose that scores on a knowledge test are normally distributed with a mean of 60 and a standard deviation of 4.3. scores on an aptitude test are normally distributed with a mean of 110 and a standard deviation of 7.1. boris scored a 57 on the knowledge test and 106 on the aptitude test. callie scored 63 on the knowledge test and 114 on the aptitude test. (a) which test did boris perform better on? use z-scores to support your answer. (b) which test did callie perform better on? use z-scores to support your answer. (c) boris also took a logic test. his z-score on that test was . does this change the answer to which test boris performed better on? explain your answer using z-scores.

1. are the triangles similar and if so why? what is the value of x? show your work.

Gexpressions: practice question 3 of 5 jackson wants to study the popularity of his music video by tracking the number of views the video gets on his website. the expression below represents the total number of views that jackson's video receives n days after he begins tracking the nu views, where b is the rate at which the number of views changes. alb)" select the statement that would accurately describe the effect of tripling a, the initial number of views before jackson beginst the rate at which the number of views changes, b, will triple. the total number of views the video has after n days, a(b)", will not change. the total number of days since jackson begins tracking views, n, will be reduced by one-third. the total number of views the video has after n days, alb)", will triple. submit

Give the functions f(x) = |x + 2| - 3, what is the domain? a, b,c, or d all real numbers x > 2 x < -2 all real numbers and x cannot equal to 2