For the equation 3tan^2x - 5tanx +k =0, state the value of k for which there are 3 solutions for the Interval 0 <=x<=180. In the mark scheme, they stated that k=0, so i want to know why? Any help will be appreciated

Someone answer asap for ! the boiling point of water at an elevation of 0 feet is 212 degrees fahrenheit (°f). for every 1,000 feet of increase in elevation, the boiling point of water decreases by about 2°f. which of the following represents this relationship if b is the boiling point of water at an elevation of e thousand feet? a. e = 2b - 212 b. b = 2e - 212 c. e = -2b + 212 d. b = -2e + 212

What is the distance from zero if a quadratic function has a line of symmetry at x=-3 and a zero at 4

What fraction is equivalent to 0.46464646··· a. 46⁄99 b. 46⁄999 c. 46⁄100 d. 23⁄50