The mean of a set of credit scores is 4= 690 and g= 14. which statement must be true?
z690 is within 1 standard deviation of the mean.
z690 is between 1 and 2 standard deviations of the mean.
z690 is between 2 and 3 standard deviations of the mean.
o z690 is more than 3 standard deviations of the mean.

Which graph depicts the path of a projectile

In trapezoid abcd, ac is a diagonal and ∠abc≅∠acd. find ac if the lengths of the bases bc and ad are 12m and 27m respectively.

The weight of a radioactive isotope was 96 grams at the start of an experiment. after one hour, the weight of the isotope was half of its initial weight. after two hours, the weight of the isotope was half of its weight the previous hour. if this pattern continues, which of the following graphs represents the weight of the radioactive isotope over time? a. graph w b. graph x c. graph y d. graph z