Mathematics Concepts Assessment

What is an example of an irrational number?

• √2

• 0

• -5

• 3.14

Convert 0.0045 to standard form.

• 45 x 10^-4

• 4.5 x 10^3

• 0.45 x 10^-2

• 4.5 x 10^-3

Simplify: 2^3 × 2^4.

• 64

• 256

• 512

• 128

If x = 3, what is the value of 2x + 5?

• 11

• 8

• 5

• 14

Construct an expression for the perimeter of a rectangle with length l and width w.

• P = l + w

• P = 2lw

• P = 2l + 2w

• P = l + 2w

Expand the expression (x + 2)(x + 3).

• x^2 + 4x + 6

• x^2 + 6x + 5

• x^2 + 5x + 5

• x^2 + 5x + 6

Simplify the algebraic fraction: (2x^2)/(4x).

• 2/x

• 4/x^2

• x/4

• x/2

Derive a formula for the area of a triangle.

• Area = base * height

• Area = (1/2) * base * height

• Area = (1/3) * base * height

• Area = base + height

What is 0.75 multiplied by 10?

• 7.5

• 8.0

• 10.5

• 6.5

If a shirt costs $40 and is on sale for 25% off, what is the sale price?

• $35

• $30

• $25

• $20