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
Vlada [557]
3 years ago
11

If f(x) = 2x + 1, then f(3) = ?

Mathematics
2 answers:
Dima020 [189]3 years ago
8 0

Answer:

D, 9

Step-by-step explanation:

F(x)=2^x+1

f(3)=2^3+1

f(3)=8+1

f(3)=9

Kay [80]3 years ago
8 0
It’s 28 because you are inputting 3 for x. 2^3 is 27, and then you add 1 so it would be 28.
You might be interested in
PLEASE HELP ME!!!!
12345 [234]

This is what I got, but you might want to double check me because I'm not that good at math (this is what I got for the discontinuity);

1. f(x)= x^2+6+8/x+4

*x+4=0                                      

-4 -4                                      

 x= -4

This means that x cannot equal -4

2. f(x)= (x+2)(x-4)/(x+2)(x+2)

*Note: When I did my calculations, I cancelled out all (x+2) binomials except for one in the denominator*

f(x)= x-4/x+2

*x+2=0                                      

   -2 -2                                      

     x= -2

This means x cannot equal -2

*You may want to check my work, but I believe that your answer is going to be either C or D. Personally, I assume it's C, but that's just me. Anyway, it's probably going to be C or D, or at least that's what I think.*

3 0
3 years ago
Read 2 more answers
Confirm that f and g are inverses by showing that f(g(x)) = x and g(f(x)) = x.
timofeeve [1]
<span>We want to show that f(g(x)) = x and g(f(x)) = x. So to do that, we need to calculate f(g(x)) and g(f(x)) explicitly. Let's begin with f(g(x)) Now, f(g(x)) = f(4/x), by definition of g, as g(x) = 4/x What then is f(4/x) equal to? Use the definition of f.</span>
5 0
4 years ago
What is a situation in which you might locate points on a coordinate grid?
JulijaS [17]
Lol battlefield or on a map when you're look for a particular place
7 0
3 years ago
Read 2 more answers
Find the approximate length of EF.
Yuri [45]

Answer:

The correct option is B

Step-by-step explanation:

Given information: ∠F=32°,∠D=54° and DF=18m.

According to the angle sum property of triangle, the sum interior angles of a triangle is 180°.

Using angle sum property, we get

\angle D+\angle E+\angle F=180^{\circ}

54^{\circ}+\angle E+32^{\circ}=180^{\circ}

\angle E+86^{\circ}=180^{\circ}

\angle E=180^{\circ}-86^{\circ}

\angle E=94^{\circ}

Law of sine:

\frac{\sin A}{a}=\frac{\sin B}{b}=\frac{\sin C}{c}

Using law of sine we get

\frac{\sin D}{d}=\frac{\sin E}{e}

\frac{\sin D}{EF}=\frac{\sin E}{DF}

\frac{\sin 54^{\circ}}{EF}=\frac{\sin 94^{\circ}}{18}

\frac{0.809016994375}{EF}=\frac{0.99756405026}{18}

Cross multiply,

0.809016994375\times 18=0.99756405026\times EF

Divide both sides by 0.99756405026.

EF=14.5978655656

EF\approx 14.6

The value of EF is 14.6 m. Therefore the correct option is B.

7 0
3 years ago
In San Francisco, California, a hotel is located on a city block bounded by Market Street, McAllister Street, and 7th Street as
Marianna [84]

Answer:

sheesh

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Other questions:
  • Finds the missing values of the variables. the diagram is not to scale.
    12·1 answer
  • Solve for r please 80=10r.
    15·2 answers
  • Which of the h-values satisfy the following inequality 6 ( greater than or equal to sign ) h/2?
    8·1 answer
  • Two containers designed to hold water are side by side, both in the shape of a cylinder. Container A has a diameter of 26 feet a
    5·2 answers
  • Select all the expressions that are equivalent to 18+4(m−3)+4m.
    8·1 answer
  • Frankie puts £5000 in a bank account with an interest of 6%
    14·1 answer
  • What is the mode of the following numbers? 12, 11, 14, 10, 8, 13, 11,9​
    15·1 answer
  • Mai’s mother was 28 when Mai was born. Mai is now 12 years old. <br> How old will they be then?
    5·2 answers
  • There is 145,000 flowers at the school. 4,530 of the flowers are roses. The rest
    7·1 answer
  • a rectangular has a perimeter of 50 centimeters if the width of the rectangular is 10 centimeters what is its length
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!