Which statement can be concluded using the true statements shown? If two angles in a triangle measure 90° and x degrees, then the third angle measures (90 - x) degrees.
In triangle ABC, angle A measures 90 degrees and angle B measures 50º.
Angle C must measure 50 degrees.
Angle C must measure 40 degrees.
Angle C must measure (90 – 40) degrees.
Angle C must measure (90 - 30) degrees.

The position of a moving particle is given by the position function: f(t)=-9t-t^2-0.2t^3+0.1t^4 0 a. at what time does the particle reverse direction? b. when is the displacement positive? (round one decimal place and answer in interval notation) c. when is the displacement negative? (round one decimal place and answer in interval notation) d. when is the particle’s acceleration positive? (round one decimal place and answer in interval notation) e. when is the particle’s acceleration negative? (round one decimal place and answer in interval notation)

The perimeter of a rectangular lot of land is 436 ft. this includes an easement of x feet of uniform width inside the lot on which no building can be done. if the buildable area is 122 ft by 60 ft, determine the width of the easement. select one: a. 9 feet b. 18 feet c. 4.5 feet d. 7 feet

Extremely mega ultra important question! plss answer as fast as you can you will get 84 points! the area of this right triangle is half the area of which of these rectangles?