On average Tempe, AZ gets rain 29.1 days a year (out of 365 days). Your weather app is predicting rain tomorrow. The app isn’t perfect though. It only predicts that it will rain around 85% of the time that it actually does rain, and it will predict rain about 9% of the time that it doesn’t rain. What is the probability that it is going to rain tomorrow?

Kayla wants to find the width, ab, of a river. she walks along the edge of the river 65 ft and marks point c. then she walks 25 ft further and marks point d. she turns 90° and walks until her location, point a, and point c are collinear. she marks point e at this location, as shown. (a) can kayla conclude that δ and δ are similar? why or why not? (b) suppose de = 15 ft. what can kayla conclude about the width of the river?

An arc subtends a central angle measuring 7pi/4 radians what fraction of the circumference is this arc?

At the beginning of 1974/75,2 years a man invested #2000 in a bank at 12.5% compound interest, if it degree #650 at the end of each two years to pay his son's school fees, after payment of interest to pay his son's school fees, how much did he have left at the beginning of the 1978/79 school year?