2010007304 Level: CWhich of the given sets contains exactly all non-negative integers that satisfy the inequality (3x+6)2≤12?{0;1;2}{0;1;2;3;4;5;6}{2;3;4;5}{1;2}
2010007302 Level: CThe surface area of a cuboid is 19942cm2. Its dimensions are in the ratio 2:5:7. Find the volume of the cuboid.153790cm3615160cm376895cm3175760cm3
2010007003 Level: CThe shop offers a selection of 8 types of ice-lollies? (All types in numbers over 4 pieces.). In how many ways can we choose 4 ice-lollies?11!4!7!=3308!4!4!=708!4!=168048=65536
2010006505 Level: CAssuming x∈R, find the solution set of the following system. 3(x+3)≤3x≤6+4x{−2}[−2;+∞)(−∞;−2]R
2010006504 Level: CHow many solutions has the inequality in N×N? (Hint: Solve the inequality graphically.) 3y≤−2x+4023infinity
2010006402 Level: COne third of a number a is by 75% greater than one seventh of a number b. Choose the true statement.The number a is by 25% smaller than b.The number a is by 75% smaller than b.The number a is by 400% greater than b.The number a is by 75% greater than b.
2010006401 Level: COf the school's 300 pupils, 67% attend the sports club and 42% attend the music club. 18% attend both clubs. How many children do not attend any club?27 children81 children87 children30 children
2010006309 Level: CFind the points of intersection of the circle x2+y2=16 and the line x−y+4=0.[−4;0], [0;4][0;−4], [−4;0][4;0], [0;4][−4;0], [4;0][4;0], [0;−4]