Question
Asked Feb 26, 2019
124 views

 The homework question asks to Solve the logarithmic equation algebraically, which im having difficulty doing.

43. log2(z+20) - log2(x +2) -log2r
help_outline

Image Transcriptionclose

43. log2(z+20) - log2(x +2) -log2r

fullscreen
check_circle

Expert Answer

Step 1

Solving the logarithmic equation algebraically:

log2(x+20)- log2(x+2) = log2 (x+2) = log2 x

According to the logarithmic rule log x – logy = log (x/y)

Therefore, equation be written as:

fullscreen
Step 2

To calculate the value of x we solve the quadratic equation from x...

fullscreen

Want to see the full answer?

See Solution

Check out a sample Q&A here.

Want to see this answer and more?

Solutions are written by subject experts who are available 24/7. Questions are typically answered within 1 hour.*

See Solution
*Response times may vary by subject and question.
Tagged in

Math

Algebra

Related Algebra Q&A

Find answers to questions asked by student like you
Show more Q&A
add
question_answer

Q: Evaluate the piecewise function at the given values of the independent variable. 2x+5 if x <0 f(x) 3...

A: -3&lt;0 so we will use f(x)=2x+5 to find f(-3)Answer(a): f(-3) =-1 

question_answer

Q: The bar graph to the right shows the average number of hours that people sleep per day, by age group...

A: We are given a bar graph

question_answer

Q: Solve the inequality using a graphing utility. X+ 1 s2 X- 2 Graph the given inequality using a graph...

A: Calculation:Use a graphing calculator and obtain the graph of the given rational function as shown b...

question_answer

Q: #21 and #22

A: Since you have submitted two questions, we'll answer the first question. For the second question ple...

question_answer

Q: f Then determine the domain for each function. Given f(x)=x+ 6 and g(x) 4x, first find f+ g, f-g, fg...

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and s...

question_answer

Q: Use the given function to complete parts (a) through (e) below. f(x)-x-9x2 O Even, y-axis symmetry O...

A: The given function is,

question_answer

Q: 6 and g(x) = X find the following functions For f(x)= X a. (fo g)(x), b. (g o f)(x), c. (f o g)(7), ...

A: Given,

question_answer

Q: Solve the logarithmic equation. Be sure to reject any value of x that is not in the domain of the or...

A: We are given logarithmic  equation as 

question_answer

Q: 35) Complete the table below to create an odd function f. x 60 246 3 -12 f(x)

A: Given:The function is an odd function.That is, f(-x) = -(f(x)).