Final2 Study Guide

Which expression is equivalent to

 $c+c+c+c$  

•  $4c^4$  

•  $c\times c\times\times c\times c$  

•  $c^4$  

•  $4c$  

Answer explanation

Repeated addition can be written as multiplication.

Which expression represents the product of y and 13?

• $y+13$

• $y-13$

• $13y$

• $y\div13$

Answer explanation

Product is a key word for multiplication.

Which expression is equivalent to 16?

• $4^2$

• $4\times2$

• $4^4$

• $3^3$

Answer explanation

Equivalent means "have the same value"

What expression is equivalent to $2x+6x$  ?

•  $8x$  

•  $12x$  

•  $4x$  

•  $12x^2$  

Answer explanation

Combine like terms to write an equivalent expression.

 $\left(3x+2\right)$  

Which phrase represent the following expression:

• the sum of two terms

• the product of two terms
  

• the sum of three terms

• the product of three terms.

Answer explanation

SUM "addition" 

TERMS "values separated by a plus or minus sign"

 Compute: $10-4+9\div3$  

• 7

• 8

• 9

• 10

Answer explanation

Follow the Order of Operations.

 $6+g^2-3\times2$  If g = 5

Answer explanation

Substitute 5 for g, then follow the order of operations.

Which expression is equivalent to 4b?

• $1+3b$

• $2b\times2b$

• $2b+2b$

• $2+2+b$

Answer explanation

Combine like terms to write an equivalent expression.

Which expression has a coefficient of 9?

• $9\times4x+3$

• $3+x^9-7$

• $5x^2+9x-1$

• $27\div\frac{9}{13}-10$

Answer explanation

If  $h=3$  Evaluate:  $\frac{36}{h}$  

• 9

• 10

• 11

• 12

Answer explanation

Substitute 3 for h, then divide. Fractions represent division.