Maths quiz grade 7

Which of the following operations is closed with respect to integers?

• Multiplication

• Addition

• Subtraction

• Division

• 6

• 3

• 9

• 4

• -125

• 125

• -15

• 15

10 is a polynomial of degree

• 0

• 1

• 2

• not a polynomial

6a – 3a – 7a + 3a =

• -a

• a

• 13a

• -13a

For what value of a will the expressions 9a + 14 and –3 – 8a be equal?

• 1

• -1

• 0

• -2

Supplementary angles are not formed by

• linear pair

• perpendicular lines

• co-interior angles

• adjacent angles

Vertically opposite angles may not be formed when

• parallel lines are cut by a transversal

• perpendicular lines meet making four angles

• adjacent angles are formed

• intersecting lines meet and making four angles

Which of the following is a Pythagorean triplet?

• 12, 35, 37

• 8, 12, 14

• 5, 9, 11

• 8, 10, 12