9000023906 Level: ALet [x;y] be the solution of the system 2x+3y=4,4x+6y=9. In the following list identify a true statement.The system does not have any solution.x<yx>yx=y
9000023809 Level: AIdentify a true statement which concerns to the following equation. 16−5x=2−xThe solution x satisfies |x|>3.The solution x satisfies |x|<3.The solution x satisfies |x+1|<3.The solution x satisfies |x+1|>3.
9000023907 Level: ALet [x;y] be the solution of the system −x+2y=6,2x+3y=2. In the following list identify a true statement.|x|=|y||x|<|y||x|>|y|The system does not have any solution.
9000022302 Level: AComplete the following statement, if possible: „The function f:y=−x2−2x+15 attains only ... values on the interval [−5;3].”nonnegativepositivenegativeneither of the above is valid
9000023701 Level: AIdentify a true statement which concerns the following equation. x−3=1The solution is x=4.The solution is x=2.The solution is x=5.The equation does not have any solution.
9000023709 Level: AIdentify a true statement which concerns the following pair of equations. 5−x=2(1)x+5=4(2)The solution of (1) is smaller than the solution of (2).The solutions of both equations are prime numbers.The solution of (1) is bigger than the solution of (2).The solution of (1) equals to the solution of (2).
9000023702 Level: AIdentify a true statement which concerns the following equation. x+7=3The solution is x=2.The solution is x=−4.The solution is x=−2.The equation does not have a solution.
9000023805 Level: AIdentify a true statement about the following equation. 6+x=−xThe solution is in the set {x∈R:−4<x≤−1}.The solution is in the set {x∈R:1≤x≤5}.The solution is in the set {x∈R:−6≤x≤−3}.The solution is in the set {x∈R:−2<x<3}.
9000023703 Level: AIdentify a true statement which concerns the following equation. x+1=2The solution is a number from the interval [2;5).The solution is a number from the interval [−1;2].The solution is a number from the interval [−2;3).The solution is a number from the interval (4;7).
9000022802 Level: AFind all x∈R for which the following expression is undefined. log(2x2+4x−6)[−3;1](−∞;−3)∪(1;∞)(−3;1)(−∞;−3]∪[1;∞)