F.C.M. 2 FT Quiz 2

What is radius of a circle with a diameter of 30 cm?

• 15 cm

• 60 cm

• 10 cm

• 25 cm

What is the perimeter of an equilateral triangle with a length 7 cm?

• 21

• 14

• 28

• 49

A singular matrix has a determinant of:

• zero

• one

• two

• three

The determinant of a non-singular matrix can be any of the following the values EXCEPT:

• zero

• one

• two

• three

The product of a 3 x 2 matrix and a 2 x 1 matrix will result in a:

• 2 x 3 matrix

• 1 x 2 matrix

• 3 x 1 matrix

• 2 x 2

What is the value of x when y = 0 in the equation 2y - 16x - 64 = 0 ?

• - 16

• - 4

• 8

• 32

What is the value of y when x = 0 in the equation x + 6y - 12 = 0 ?

• 12

• 6

• 1

• 2

The perimeter of a rectangle is 20 cm. What is the area of this rectangle if its length is 7 cm?

• 21 cm²

• 140 cm²

• 70 cm²

• 28 cm²

The mean of 9 numbers is 7. If 57 is added to the set of numbers, what is the new mean?

• 63

• 10

• 12

• 64

The width of a rectangle is 20 cm less than its length. What is the width of the rectangle if the perimeter is 140 cm ?

• 25 cm

• 30 cm

• 45 cm

• 60 cm