Calculați a + b – c pentru: a) a = 2√3 – 5, b = 3√2 – 2√3, c = –5 + 3√2. b) a = 2 – √5 , b = – 4√7 + 2√5 , c = √5 – 4√7.

Consider the system: y = 3x + 5 y = ax + b what values for a and b make the system inconsistent? what values for a and b make the system consistent and dependent? explain

Rob spent 25%, percent more time on his research project than he had planned. he spent an extra h hours on the project. which of the following expressions could represent the number of hours rob actually spent on the project? two answers

Which expression is equivalent to 3^3 + 2^2?