(07.02 LC)

The picture below shows a portion of a river dam:
A right angle triangle is shown with acute angle on base equal to 40 degrees and length of base equal to 100 meters.
Which of the following can be used to calculate the height of the river dam? (6 points)
Group of answer choices
100 divided by sin 40 degrees
100 sin 40°
100 divided by tan 40 degrees
100 tan 40°

Segment ab is shown on the graph. which shows how to find the x-coordinate of the point that will divide ab into a 2: 3 ratio using the formula

Abag contains 3 red marbles, 2 blue marbles, and 2 green marbles. one marble is picked, then another marble. assume that the selections are made with replacement. a) find the probability of picking two red marbles with replacement. b) find the probability of picking a red marble and a blue marble. assume the selections are made without replacement. c) find the probability of picking two red marbles without replacement. d) find the probability of picking a red marble and a blue marble without replacement.

In δabc, m∠acb = 90°, cd ⊥ ab and m∠acd = 45°. find: a find cd, if bc = 3 in