9000027310 Level: AIdentify the solution set of the following inequality. |2x+11|>0(−∞;−5.5)∪(−5.5;∞)(−2;11)(−∞;−11)∪(11;∞)∅
9000027308 Level: AIdentify the solution set of the following inequality. |2x−1|>5(−∞;−2)∪(3;∞)(−∞;−4.5)∪(5.5;∞)(1.5;∞)(−∞;0)∪[5;∞)
9000025601 Level: AWhich of the quadratic equations from the following list has all solutions in the interval [−5;3]?x2−2x−3=0x2−3x−10=0x2−2x−15=0x2−3x−18=0
9000024505 Level: AIdentify the value of a real parameter b such that the graph of the function f(x)=|x+12|+b corresponds to the picture.−1−32−12121
9000025602 Level: AIn the following list identify a set which contains at least one solution of the quadratic equation x2−121=0.{−11;1;13}{−5;0;5;10}{3;7;9;19}{−15;−12;−7}
9000024506 Level: AIdentify the value of real parameters a and b such that the graph of the function f(x)=|x+a|+b corresponds to the picture.a=2, b=−3a=2, b=3a=3, b=2a=−3, b=−2
9000025604 Level: AIn the following list identify an equation which does not have solution in the set of real numbers.8x2−x+1=08x2+8x−1=08x2−8x+1=08x2−x−1=0
9000024507 Level: AIdentify the value of a real parameter a such that the graph of the function f(x)=−|a−x|+2 corresponds to the picture.321−14
9000024105 Level: AIdentify the optimal first step to solve the following equation. The operation is intended to be used on both sides of the equation. 4+xx+1=x−3x+2multiply by (x+2)⋅(x+1), assuming x≠−2 and x≠−1multiply by (4+x)⋅(x−3), assuming x≠−4 and x≠3multiply by (4+x)⋅(x+1), assuming x≠−4 and x≠−1multiply by (x−3)⋅(x+2), assuming x≠3 and x≠−2multiply by (x−3), assuming x≠3multiply by (4+x), assuming x≠−4
9000024408 Level: AIdentify the values of real parameters a and b such that the graph of the function f(x)=|x−a|+b corresponds to the picture. a=3,−b=−2 a=−3,b=2 a=2,−b=−3 a=−2,b=2