Math Quiz

Six less than the product of eight and a number

• 6−8n

• 8−6n

• 6n−8

• 8n−6

Find the value of \(\frac{4b+12}{3a+2c}\) if \(a=8, b=5, \text{and} c=-4\).

• -4

• 2

• 4

• 16

The sides of a triangle have lengths \(2x−1, x+5, \text{and} 3x−7\). Which of the following describes the perimeter of the triangle in terms of \(x\)?

• \(P=6x−3\

• \(P=5x−3\

• \(P=6x−11\

• \(P=6x+3\

Simplify \(4a−5(6+7a)\)

• -39a−30

• 6a+1

• -31a−30

• 39a−30

Find the value of \(6a^2\) for \(a=3\)

• -54

• 9

• 36

• 54

What is the value of \(3x^2−y^2\) if \(x=1\) and \(y=3\)?

• 12

• -3

• -6

• -12

Simplify ( \frac{3}{4}(12 - 4) + 32 + 4 \cdot (-6) )

Simplify ( -| -10 | + \frac{3 - 39}{4} )

Evaluate ( \sqrt[3]{x + y \cdot p} ), when x = 8, y = -28, and p = \frac{1}{2}

Evaluate ( \frac{x^2 + y^2}{x^2 - y^3} ) when x = -1 and y = -4