Which of the following phrases are inequalities? Choose 3 answers: (Choice A) A 5=55/11 (Choice B) B -2 5.6•10^4(Choice E) E f-4-7>7-4-f

What are the solutions of the system? solve by graphing. y = x^2 + 3x + 2 y = 2x + 2

List x1, x2, x3, x4 where xi is the left endpoint of the four equal intervals used to estimate the area under the curve of f(x) between x = 4 and x = 6. a 4, 4.5, 5, 5.5 b 4.5, 5, 5.5, 6 c 4.25, 4.75, 5.25, 5.75 d 4, 4.2, 5.4, 6

The? half-life of a radioactive substance is 20 years. if you start with some amount of this? substance, what fraction will remain in 120 ? years