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
Yanka [14]
3 years ago
15

What is f(3) if f(x) = 2x + 1?

Mathematics
2 answers:
RideAnS [48]3 years ago
4 0
Plug in 3 for x
f(3) = 2(3) + 1
f(3) = 6 + 1
Solution is 7
pychu [463]3 years ago
3 0

Answer:

f(3) = 7

Step-by-step explanation:

To evaluate f(3), substitute x = 3 into f(x), that is

f(3) = 2(3) + 1 = 6 + 1 = 7

You might be interested in
To avoid a storm, a passenger-jet pilot descended 0.38 mile in 0.4 minute. What was the plane's average change of altitude per m
Alenkinab [10]

Answer:

0.55 mile / minute

Step-by-step explanation:

The average change of altitude per minute would simply be the ratio of distance descended over time. That is:

average change of altitude = distance / time

average change of altitude = 0.44 mile / 0.8 minutes

average change of altitude = 0.55 mile / minute

8 0
3 years ago
Read 2 more answers
If `f(x)=x^2-81` and `g(x)=(x-9)^(-1)(x+9)`, find `g(x)xxf(x)`.
marshall27 [118]

<u>Answer:</u>

g ( x ) * f ( x ) = ( x + 9 ) ^ 2

<u>Step-by-step explanation:</u>

We are given the following two functions and we are to find g(x) * f(x):

f(x)=x2-81

g(x)=(x - 9)^{-1} ( x + 9)

g(x)*f(x)=x^{-81} * \frac{x+9}{x-9}

g ( x ) * f ( x ) =\frac{(x+9)(x-9)(x+9)}{x-9}

g ( x ) * f ( x ) = ( x + 9 ) ( x + 9 )

g ( x ) * f ( x ) =( x + 9 ) ^ 2

3 0
3 years ago
Read 2 more answers
7x + 2 + 2x - 1 = 91
zhuklara [117]

Answer: 10

Step-by-step explanation:

8 0
3 years ago
Which expression is equivalent to (-7.5+21 1/4)+(-1/2)
Setler [38]

Resuepstaa

179/4=

44,75

6 0
3 years ago
Find the value of x in the triangle shown
Mrrafil [7]

Answer:

5

Step-by-step explanation:

you need to use the Pythagorean theorem

a^2+b^2=c^2

a&b=sides

c=hypotonuse

plug the side values into the equation

4^2+3^2=c^2

16+9=c^2

25=c^2

you have to square root 25 to find c itself

c=5

3 0
3 years ago
Read 2 more answers
Other questions:
  • Gabriel went to the grocery store and bought bottles of soda and bottles of juice. Each bottle of soda has 35 grams of sugar and
    5·2 answers
  • Which inequality does this graph represent?
    8·2 answers
  • Solve the linear system of equations using the linear combination method.
    5·1 answer
  • Subtract the expression :<br> - 5x + 3x - 24<br> Plzz ....answer....plzzz
    15·2 answers
  • Monique bought 3 1/2 pounds of hamburgers for $14 . What was the cost per pound ?
    14·2 answers
  • How does interest rate affect money earned on a savings account?
    12·1 answer
  • Diego has some money in his bank account before his summer job. He deposits the money form the summer job in his bank account an
    11·1 answer
  • ()) Solve for w.<br><br> W times 1/2= 7/8
    10·1 answer
  • Please help !!! it's due today!!
    8·1 answer
  • Find the perimeter of the parallelogram with these vertices.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!