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
julia-pushkina [17]
3 years ago
5

Find f (3) for the following function: f (x) = 4x+3/x^2

Mathematics
1 answer:
Mkey [24]3 years ago
3 0

Answer: 12.333 or 12\frac{1}{3} or \frac{37}{3}

Step-by-step explanation:

Replace every x with (3)

f(x) = 4x+3/x^2\\f(3) = 4(3)+3/3^2\\f(3) = 12+3/9\\f(3) = 12.333 or 12\frac{3}{9}or \frac{111}{9}\\f(3) = 12.333 or 12\frac{1}{3} or \frac{37}{3}

You might be interested in
Use a table to find the solution to the situation.
AysviL [449]

Answer:

245+45x=170+60x

therefore in 5 days, they will charge the same amount

8 0
3 years ago
Please solve this literal equation for the variable "f"
Tatiana [17]
\frac{df+10}{6}= g

Now, multiply both sides by 6 and you get.....

 df+10=6g

now, subtract 10 on both sides and you get.....

df=6g-10

now divide both sides by d to get f by itself and you get........

f= \frac{6g-10}{d}

8 0
3 years ago
How do I solve this equation
Anestetic [448]
-x - y = 8
2x - y = -1

Ok, we are going to solve this in 2 parts.  First we have to solve for one of the variables in one of the equation in terms of the other variable.  I like to take the easiest equation first and try to avoid fractions, so let's use the first equation and solve for x.

-x - y = 8      add y to each side
-x = 8 + y      divide by -1
x = -8 - y

So now we have a value for x in terms of y that we can use to substitute into the other equation.  In the other equation we are going to put -8 - y in place of the x.

2x - y = -1
2(-8 - y) - y = -1      multiply the 2 through the parentheses
-16 - 2y - y = -1      combine like terms
-16 - 3y = -1            add 16 to both sides
-3y = 15                   divide each side by -3
y = -5

Now we have a value for y.  We need to plug it into either of the original equations then solve for x.  I usually choose the most simple equation.

-x - y = 8
-x - (-5) = 8            multiply -1 through the parentheses
-x + 5 = 8                subtract 5 from each side
-x = 3                      divide each side by -1
x = -3

So our solution set is

(-3, -5)

That is the point on the grid where the 2 equations are equal, so that is the place where they intersect.

4 0
3 years ago
Jersey number is categorical or numerical
olga55 [171]
Numerical hope that helps
6 0
3 years ago
The height of an object varies directly with the length of its shadow, A person who is 6 feet tall casts a 15-foot shadow, how l
11Alexandr11 [23.1K]
The multiplier to get from 6 * ... to 15 is 15/6.
If 6 * 15/6 = 15, then 20 * 15/6 = 50, answer B.
3 0
3 years ago
Read 2 more answers
Other questions:
  • Need help on this one
    15·1 answer
  • A basketball coach will select the members of a five-player team from among 9 players, including John and Peter. If the five pla
    9·1 answer
  • How many sales would you make a week? i would make between 3 and 5 sales per week?
    7·1 answer
  • HELP❕❗
    14·1 answer
  • Find the value of x<br> Thank you it needs to be turned in pronto
    14·1 answer
  • PLEASE HELP!!! A bridge has a weight limit of 5000 kg. What is the heaviest load that a pickup truck weighing 4500 pounds could
    11·1 answer
  • An isosceles trapezoid has base angles of 45° and bases of lengths 8 and 14. The area of the trapezoid is
    9·1 answer
  • You are 200 yards from a river. Rather than walking directly to the river, you walk 400 yards along a straight path to the river
    8·1 answer
  • How to write 820.681 in expanded form
    15·2 answers
  • The sum of the square of a positive number and the square of 2 more than the number is 202. What is the? number?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!