Compute the area of a triangle hight 10cm base 2cm ,6cm​

Which conjunction is disjunction is equivalent to the given absolute value inequality? |x+2|< 18

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?

How can you check that you have correctly converted frequencies to relative frequencies?