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
elixir [45]
3 years ago
9

The function f is defined by f(x) = 4x + 1. What is the value of f(3)?

Mathematics
2 answers:
My name is Ann [436]3 years ago
5 0

Answer:

13

Step-by-step explanation:

f(x) = 4x + 1

Let x= 3

f(3) = 4*3+1

    = 12+1

   = 13

laiz [17]3 years ago
5 0

Answer:

13

Step-by-step explanation:

f(x) = 4x + 1

replacing the value of x,we get

f(3)=4×3+1

f(3)=12+1

f(3)=13

You might be interested in
PLEASE HELP?!?!?!?!?!?!?!
Readme [11.4K]
The surface area is 72 ft.^2.
8 0
3 years ago
C=
mel-nik [20]

Answer:

I believe the answere is B

Step-by-step explanation:

Please mark brainliest

7 0
3 years ago
Read 2 more answers
Jessie has a piece of wood that is 8 feet long. he needs to cut pieces that are 7/8 of a foot long. how many pieces will he b ab
Nastasia [14]
Hello
You divide 8 by 7/8 you get <span><span>
9 1/7
Hope we helped<span /></span></span>


3 0
3 years ago
Read 2 more answers
a new machine with better technology produces 210 gel pens every 15 minutes what is the concept of the proportionality in the re
Helen [10]

Answer:

<em>p = 14t</em>

Step-by-step explanation:

y = kx

The rate k = 210 ÷ 15 = 14 gel pens per minute

"p" is number of pens, "t" is number of minutes

<em>p = 14t</em>

4 0
3 years ago
The area of a rectangular piece of cardboard is represented by
Liula [17]

This question is solved applying the formula of the area of the rectangle, and finding it's width. To do this, we solve a quadratic equation, and we get that the cardboard has a width of 1.5 feet.

Area of a rectangle:

The area of rectangle of length l and width w is given by:

A = wl

w(2w + 3) = 9

From this, we get that:

l = 2w + 3, A = 9

Solving a quadratic equation:

Given a second order polynomial expressed by the following equation:

ax^{2} + bx + c, a\neq0.

This polynomial has roots x_{1}, x_{2} such that ax^{2} + bx + c = a(x - x_{1})*(x - x_{2}), given by the following formulas:

x_{1} = \frac{-b + \sqrt{\Delta}}{2*a}

x_{2} = \frac{-b - \sqrt{\Delta}}{2*a}

\Delta = b^{2} - 4ac

In this question:

w(2w+3) = 9

2w^2 + 3w - 9 = 0

Thus a quadratic equation with a = 2, b = 3, c = -9

Then

\Delta = 3^2 - 4(2)(-9) = 81

w_{1} = \frac{-3 + \sqrt{81}}{2*2} = 1.5

w_{2} = \frac{-3 - \sqrt{81}}{2*2} = -3

Width is a positive measure, thus, the width of the cardboard is of 1.5 feet.

Another similar problem can be found at brainly.com/question/16995958

5 0
2 years ago
Other questions:
  • A square technology chip has an area of 25 square centimeters how long is each side of the chip
    13·1 answer
  • A rocket took off at a speed of 7.9 kilometers per second. How many miles per hour does the rocket travel if 1 km is 0.62 miles?
    14·1 answer
  • The graph represents the total charges for a taxi that gets $6 to board and $1.25 per mile. What information is represented on t
    9·1 answer
  • You just got a free ticket for a boat ride, and you can bring along 3 friends! Unfortunately, you have 5 friends
    5·1 answer
  • The number of hours between successive train arrivals at the station is uniformly distributed on (0, 1). Passengers arrive accor
    10·1 answer
  • Find the next two terms of this sequence-7, 14 ,-28
    8·1 answer
  • Please help 50 points
    12·2 answers
  • If v = 35 , a = 4 , t = 5 and v = u + a t , evaluate u .
    6·2 answers
  • Find the exact values of sin (-pi/12)
    15·2 answers
  • The function
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!