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lengths of newborn girls are normally distributed with a mean of 49.2 cm and a standard deviation of 1.8 cm.
find the z-score associated with newborn girls who are 50 cm long:
&
what percent of newborn girls will be 50 cm or longer?

Elena and her husband marc both drive to work. elena's car has a current mileage (total distance driven) of 15,000 and she drives 23,000 miles more each year. marc's car has a current mileage of 46,000 and he drives 9,000 miles more each year. will the mileages for the two cars ever be equal? explain.

Need on this geometry question. explain how you did it.

Which of the following functions corresponds to the above sinusoid? a. 10 cos πx - 5 b. -5 sin x - 5 c. -10 cos πx/2 - 0.5 d. 10 sin πx - 5