9 What is an equation of the line that passes through the points (-1,-2) and (2,4)?
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y+1 = 2(x + 2)
y+1 = 2(x - 2)
y + 2 = 2(x + 1)
y + 2 = 2(x - 1)

Koji is installing a rectangular window in an office building. the window is 823 feet wide and 534 feet high. the formula for the area of a rectangle is a=bh. what is the area of the window? enter your answer as a mixed number in simplest form in the box. $$ ft2

Two triangles can be formed with the given information. use the law of sines to solve the triangles. b = 49°, a = 16, b = 14

Is a triangle with sides of length 6ft, 21 ft, 23 ft. a right triangle?