A rectangular steel structure is stabilized by 70 cm cables that connect opposite vertices. If the obtuse angle formed where the cables intersect is 140°, what are the dimensions of the rectangle?

Write the sine and cosine values of a, b, respectively, in the figure for (1) and (2) + explanation.

Which expression is equivalent to (4 +6i)^2? ? -20 + 48i 8 + 12i 16 - 36i 20 + 48i

(05.02) mr. morris is going to save money and replace his sailboat's mainsail himself. he must determine the area of the mainsail in order to buy the correct amount of material. calculate the area of the parallelogram to determine how much material should be purchased. be sure to explain how to decompose this shape into rectangles and triangles. describe their dimensions and show your work.