Use the properties of logarithms to find the exact value of the expression. Do not use a calculator.log7 21 - log7 3

A. 7
B. 3
C. 21
D. 1


Answer: D

Mathematics

You might also like to view...

Use the following pattern and inductive reasoning to predict the answer to . ?   9 × 1-1=89 × 21-1=1889 × 321-1=28889 × 4321-1=38888?  

A. 5,888,889 B. 5,888,893 C. 5,888,883 D. 588,888 E. 5,888,888

Mathematics

Solve the equation. x+1=  x-1

A.
B.
C.
D.

Mathematics

Answer the question or solve the problem.Under what conditions must the inequality symbol be reversed when solving an inequality?

What will be an ideal response?

Mathematics

Simplify the complex rational expression.

A.  
B.
C.
D. x3 + x3 

Mathematics