1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
inna [77]
3 years ago
6

F(x)3x+5/x what is f(a+2)

Mathematics
2 answers:
wolverine [178]3 years ago
8 0

Answer:

f(a+2) equals:

\dfrac{3a^2+12a+17}{a+2}

Step-by-step explanation:

We are given

f(x)=3x+\dfrac{5}{x}

We have to find the value of f(a+2)

substituting a+2 in place of x in f(x), we get

f(a+2)=3(a+2)+\dfrac{5}{a+2} \\\\f(a+2)=\dfrac{3(a+2)^2+5}{a+2} \\\\f(a+2)=\dfrac{3(a^2+4+4a)+5}{a+2} \\\\f(a+2)=\dfrac{3a^2+12+12a+5}{a+2} \\\\f(a+2)=\dfrac{3a^2+12a+17}{a+2}

Hence, f(a+2) equals:

\dfrac{3a^2+12a+17}{a+2}

Natalija [7]3 years ago
4 0
F(X) = (3x + 5)/X
F(a + 2) = (3(a + 2) + 5)/(a + 2)
F(a + 2) = (3a + 6 + 5)/(a+2)
F(a + 2) = (3a + 11)/(a + 2).

This would be the final solution.
You might be interested in
What is different between solving inequalities and absolute value inequalities?
Ivenika [448]

Answer:

The absolute number of a number a is written as

|a|

And represents the distance between a and 0 on a number line.

An absolute value equation is an equation that contains an absolute value expression. The equation

|x|=a

Has two solutions x = a and x = -a because both numbers are at the distance a from 0.

To solve an absolute value equation as

|x+7|=14

You begin by making it into two separate equations and then solving them separately.

x+7=14

x+7−7=14−7

x=7

or

x+7=−14

x+7−7=−14−7

x=−21

An absolute value equation has no solution if the absolute value expression equals a negative number since an absolute value can never be negative.

The inequality

|x|<2

Represents the distance between x and 0 that is less than 2

Whereas the inequality

|x|>2

Represents the distance between x and 0 that is greater than 2

You can write an absolute value inequality as a compound inequality.

−2<x<2

This holds true for all absolute value inequalities.

|ax+b|<c,wherec>0

=−c<ax+b<c

|ax+b|>c,wherec>0

=ax+b<−corax+b>c

You can replace > above with ≥ and < with ≤.

When solving an absolute value inequality it's necessary to first isolate the absolute value expression on one side of the inequality before solving the inequality.

Step-by-step explanation:

Hope this helps :)

5 0
3 years ago
Read 2 more answers
This stuff confuses me
Slav-nsk [51]
It's slope would be undefined.
6 0
3 years ago
Read 2 more answers
The sales manager at Western Furniture Company tracked data on the number of customers who came in the store each day and the to
lions [1.4K]

Answer:

Scatter plot

Step-by-step explanation:

Using a scatter plot will allow the sales manager to show the data collected about the number of customers who enter the store and the dollar volume of sales for each day because the plot will have a  dot to represent each day. The analyze of the pattern formed by the dots will show if there is a relation between the variables and what kind of relation is (systematic or causal). She can also add a regression line to find an explanation for the relation between the variables.

4 0
4 years ago
Please help, if you need more info to answer the question please lmk
katrin2010 [14]
I believe this is right but I’m not 100%

7 0
3 years ago
What is the opposite of -8? :D
VMariaS [17]
<h3>The answer is:</h3><h2>8</h2><h2 />

We know that the opposite of 8 is -8. So the opposite of -8 is 8.

You can look a number line if you are still confused!

8 0
3 years ago
Read 2 more answers
Other questions:
  • If the sales tax in your city is 4.7%, percent, and an item costs $164 before tax, how much tax would you pay on that item? How
    15·2 answers
  • What is the slope of the equation -4x-7y=-14
    13·1 answer
  • What are facts using mathematical terms for second grade
    8·1 answer
  • Simplify square root of 306
    13·1 answer
  • Can somebody help me on this thank you it will mean a lot
    7·1 answer
  • Two angles are supplementary. One angle is 155º. What is the measure of the other<br> angle?
    9·2 answers
  • Find a third-degree polynomial equation with rational coefficients that has roots –5 and 6 + i.
    15·1 answer
  • Find area of triangle .. help me please!
    9·2 answers
  • The area of a circle, in terms of <br> π<br> , is 36<br> π<br> m2.<br> Find the value of the radius.
    10·1 answer
  • Rob Herndon, an accountant with Southwest Airlines, wants to retire 50% of
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!