logarithms

Rewrite 3⁴ = 81 in logarithmic form.

• log₃4 = 81
• log₈₁3 = 4
• log₃81 = 4
• log₄81 = 3

The common logarithm has what base?

• 10
• 0
• e
• -e

Write as a single log: log 12 + 2 log x

• log (12 + 2x)

• log (14x)

• log (24x)

• log (12x²)

Rewrite  $\log_bx^n$  

•  $n\log_bx$  

•  $x^n\log b$  
  

•  $x^n\log_bx$  
  

•  $x\log_bn$  
  

Simplify the expression
log(30)-log(6)

• -6log(30)
• log(24)
• log(-24)
• log(5)

Use the change of base formula to evaluate. Round to 3 decimal places.

log₇8=

ln(e^W)

log(10^R)

10^log(k)=