What is the product? (7x2)(2x®+5)(x2-4x-9)
O 14x5 - X4-46x3 - 58x2 - 20-45
O 14x6 -56x5-91x4 - 140X3-315x2
O 14x7-56x6 - 126x5 + 35x4 - 140x3 - 315x2
O 14x12 - 182x + 35x4 - 455x2

The measurement of one angle of a right triangle is 34°. what is the measurement of the third angle?

Marco is studying a type of mold that grows at a fast rate. he created the function f(x) = 345(1.30)x to model the number of mold spores per week. what does the 1.30 represent? how many mold spores are there after 4 weeks? round your answer to the nearest whole number. 1.30 represents the number of mold spores marco had at the beginning of the study; 985 mold spores 1.30 represents the number of mold spores grown in a given week; 448 mold spores 1.30 represents the 30% rate of weekly growth; 345 mold spores 1.30 represents the 30% rate of weekly growth; 985 mold spores

Which ordered pair is a solution to the system of linear equations? 2x + 3y= 6 –3x + 5y = 10