Scores on a recent national statistics exam were normally distributed with a mean of 80 and a standard deviation of 6. If there were 334 exams with scores of at least 89, how many students took the exam?

Use continuity to evaluate the limit. lim x→16 20 + x 20 + x step 1 consider the intervals for which the numerator and the denominator are continuous. the numerator 20 + x is continuous on the interval the denominator 20 + x is continuous and nonzero on the interval

Determine whether the quadrilateral below is a parallelogram. justify/explain your answer (this means back it up! give specific information that supports your decision. writing just "yes" or "no" will result in no credit.)

How do businesses a country's economy? a. by investing in goods and services b. by increasing the unemployment rate c. by making profits