Which of the following numbers are not written in scientific notation a. 3.45 x 10^-2
b. 34.5 x 10^5
c. 1.05 x 10^-5

43lbs of tomatos cost $387. how much would 41lbs cost

If tan2a=cot(a+60), find the value of a, where 2a is an acute angle

Given the system of equations presented here: 2x + 4y = 14 4x + y = 20 which of the following actions creates an equivalent system such that, when combined with the other equation, one of the variables is eliminated? multiply the second equation by â’4 to get â’16x â’ 4y = â’80 multiply the second equation by â’1 to get â’4x â’ y = â’20 multiply the first equation by 2 to get 4x + 8y = 28 multiply the first equation by â’1 to get â’2x â’ 4y = â’14