Select the correct answer a staircase of 30 meters. in length is supported on the wall. The foot of the ladder is 18 meters from the wall. How high does the ladder reach above the wall ?:
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The slope of a line is -1/2 . what is the slope of a line that is parallel to it? a. 1/2 b.2 c. -1/2 d. -2

Sam makes his sales calls according to a pattern. he travels either north or south depending on the calendar. some of his past trips were as follows: on february 17, april 24, june 10, september 19, and november 3 he drove north. on february 28, may 25, august 22, november 20, and december 18, he drove south. describe sams' pattern. in which direction will sam drive on oct4 and oct 24?

Which of the following statement about pascal's triangle are true?