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
liberstina [14]
3 years ago
15

If f(x) = x2 + 3x - 4, find f(4).

Mathematics
2 answers:
Nat2105 [25]3 years ago
8 0

Answer:

f(4) = 24

Step-by-step explanation:

Plug in 4 for x in the equation:

f(x) = x² + 3x - 4

f(4) = (4)² + 3(4) - 4

Remember to follow PEMDAS. PEMDAS =

Parenthesis

Exponents (&  Roots)

Multiplication

Division

Addition

Subtraction

and is the order of operation.

First, solve the power:

(4)² = 4 * 4 = 16

Next, multiply 3 with 4:

3 * 4 = 12

Next, combine the terms:

f(4) = 16 + 12 - 4

f(4) = (16 + 12) - 4

f(4) = 28 - 4

f(4) = 24

f(4) = 24 is your answer.

~

garik1379 [7]3 years ago
8 0

Answer:

24

Step-by-step explanation:

Plug x as 4.

(4)² + 3(4) - 4

16 + 12 - 4

= 24

You might be interested in
| x+8 | = 5<br><br><br> PLEASE, HELP ME!!!!!!! THE LINES ARE ABSOLUTE VALUE!!!!!
lara [203]
|x+8|=5
then x+8= 5 or -5
then x= -3 or -13
6 0
3 years ago
Solve for w: 2w&lt;9+5w
sertanlavr [38]

Answer:

w > -3

Step-by-step explanation:

2w<9+5w

Subtract 5w from each side

2w-5w<9+5w-5w

-3w <9

Divide each side by -3 remembering to flip the inequality

-3w/-3 > 9/-3

w > -3

5 0
3 years ago
Read 2 more answers
Given the diagram, solve for the blanks below:
Papessa [141]

Answer:

go on photomath

Step-by-step explanation:

5 0
3 years ago
Answer the circle question please.
makkiz [27]

\frac{11}{-6}

3 0
3 years ago
The measure of the supplement of an angle is three times the measure of the
gtnhenbr [62]
<h2>Answer:</h2>

<h3><em>x=45degrees</em></h3>

<h2>Step-by-step explanation:</h2>

Let the angle to be solved be x

Let the supplement/compliment by y

x+y=90 Complimentary angles add up to 90 degrees.

x+3y=180 Supplementary angles add up to 180 degrees, the other angle is thrice the other compliment.

Evaluating this as a system:

x+y=90 Isolate x:

x=90−y Input into the other equation:

(90−y)+3y=180 Combine like terms, isolate y and its coefficients:

2y=90 Isolate y

y=45 Input into the first equation:

x+45=90 Isolate x:

x=45degrees

5 0
3 years ago
Other questions:
  • A ballroom is 60 ft long and 30 ft wide. Which of the following formulas is the correct formulas to determine the perimeter of t
    7·1 answer
  • Mia is rolling a pair of 6-sided dice.
    9·2 answers
  • Jonah is going to the store to buy candles small candles cost $3.50 large candles cost five dollars he needs to buy at least 20
    8·1 answer
  • What is the solution the this equation? solve using linear combination method:
    12·1 answer
  • Choose a symbol to make the following statement true
    6·2 answers
  • Evaluate x + 4x when x = 20.
    13·1 answer
  • Look at my most recent question <br> i need it rn pls
    6·2 answers
  • Slope = (2)/(5), y-intercept=-2<br> Write the equation of the line in slope-intercept form please
    14·2 answers
  • Which expression is equivalent?
    10·1 answer
  • PLS DON'T USE LINKS
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!