Which expression is NOT equivalent to 2a + 5 (b + 7a)? A. A2a +5b + 35a
B. 2a + 12b
C. 5 (b) +5 (7a) + 2a
D. 5b +37a

Using the quadratic formula find the zeros of the given polynomial -5x^2+3x-11

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

What is the correlation coefficient between the variables? round to three decimal places. enter your answer in the box