The leaning tower of pisa in italy leans at an angle of about 84 degrees. the angle of elevation to the top is 50 degrees. find the distance (b) from the base to the top of the tower.

Which conjunction is disjunction is equivalent to the given absolute value inequality? |x+2|< 18

The number if marbles of different colors stored in a hat is listed below: 4 red marbles 10 green marbles 7 blue marbles. without looking in the hat, dan takes out a marble at random. he replaces the marble and then takes out another marble from the hat. what is the probability that dan takes out a blue marble in both draws?

Fred has a spinner that is split into four equal sections: red, blue, green, and yellow. fred spun the spinner 688 times. which of the following would be a good estimate of the number of times the spinner lands on the green section? a. 269 b. 603 c. 344 d. 189