25 points! SHOW ALL WORK PLZ! choose the correct discriminant, then write the type and number of roots that it indicates in the blank provided
3x + 6 = -6x^2 (x to the second power)
a) -141
b) -135
c) 0
d) 153

choose the correct discriminant, then write the type and number of roots that it indicates in the blank provided
9x^2 (x to the second power) - 6x - 4 = -5
a) -72
b) 72
c) 360
d) 0

Select all the correct answers.natalie buys a new car. in the first month, the odometer on the car records 800 miles. from past experience, she expects to drive 900 miles per monthselect all the functions that can be used to find the number of miles, f(n), recorded on the odometer after n months.of(n) = 800n + 100f(n) = 9001 - 100f(n) = 900n + 800(1) = 800; }(n) = f(n - 1) + 900, for n > 2f(1) = 800; 1(n) = f(n − 1) + 100, for n > 2(1) = 900; }(n) = f(n - 1) + 800, for n > 2

5× 1/2 = ? a) more than 5 because you are multiplying by a whole number b) 5/10 because you multiply the numerator and denominator by 5 c) less than 5 because you are multiplying by a number that is more than 1 d) less than 5 because you are multiplying by a number that is less than 1

Acylinder and its dimensions are shown. which equation can be used to find v, the volume of the cylinder in cubic centimeters?