A certain virus infects one in every 200 people. If a person tests positive, what is the probability that the person is infected?

Ms. James has a 6 ft.² bulletin board and a 12 ft.² bulletin board she wants to cover both boards with index cards without gaps or overlaps each index card has an area of 1 ft.² foot how many index cards does she need

3 roads, A, B, and C. B is three times longer than A. C is twice as long as B. Draw the roads. What fraction of the total length of the roads is the length of A? If Road B is 7 miles longer than Road A, what is the length of Road C?

Simplify - 80 over - 20

Determine whether the value is a discrete random variable, continuous random variable, or not a random variable. a. the distance a baseball travels in the air after being hitb. the number of free dash throw attempts before the first shot is madec.

The accrual of an expense was not recorded. this would

What is the graph of y - (-3) = - 1/2 (x - (0)) ?

The diameter of a human hair is 9*10^-5 meters. The diameter of a spiders silk is 3*10^-6 meters. How much greater is the diameter of a humans hair than a spiders silk?

Kelly is reading an 858-page book. During the past 6 days she has read 468 pages. At this rate, how many more days will it take her to complete

How to calculate the area of trapezium by only giving one base?

The product of 4 and a number plus the product of 3 and the same number is 35. What is the number