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
enot [183]
3 years ago
7

Find f(-3). f(x) = 4x + 7

Mathematics
1 answer:
solong [7]3 years ago
3 0

Answer:

f(x) = 4x + 7

f(x) = 4(-3) + 7

f(x) = -12 + 7

f(x) = 5

You might be interested in
The quotient of a number and 2 is the same as the difference of the number doubled and 3. What is the number?
Yanka [14]

Hi,

x/2 = 2x - 3

x/2 - 2x = - 3

x = 3 /(3/2)

x = 3 * 2/3 = 2

The number is 2.

7 0
3 years ago
Which expressions are polynomials?
cupoosta [38]

<em><u>The expressions that are polynomial are:</u></em>

6 + w

2x^4 - y

z + 1

<em><u>Solution:</u></em>

A polynomial is an expression with variables and coefficients with the operations of addition, subtraction, multiplication, and non-negative integer exponents of variables

1) 6 + w

Here "w" is a variable, hence it is a polynomial expression

2)\ 2x^4 - y

This is a polynomial, since it has variables and coefficients and variable with non negative exponent

3) z + 1

This is also a polynomial with variable "z" and has addition operation

4)\ y^2 - y\sqrt{3} + 4

Since it has root so it is not a polynomial

6 0
3 years ago
Read 2 more answers
the length of the rectangle is twice its width. write and solve a system of linear equations to find the length L and width W of
xz_007 [3.2K]

Answer:

2 ( m + 2 m)  = 36 is the required linear equation

Length of the rectangle is 12 ft and width =  6 ft

Step-by-step explanation:

Let the width of the rectangle = m ft.

So, the length of the rectangle = 2m  ft.

Perimeter  of rectangle = 36 ft

Now, PERIMETER OF THE RECTANGLE = 2(LENGTH + WIDTH)

⇒2 ( m + 2m)  = 36

or, 2 x 3m  = 36

⇒ 6m  = 36  , or m  = 36/6

⇒ m  =6 ft

So, the Width of the rectangle;  =  m = 6 ft

and the Length of the rectangle  = 2 m  = 2 x 6 =  12 ft.

5 0
3 years ago
Find the percent of change from $40 to $50.
andrezito [222]

Answer:

125%

Step-by-step explanation:

so you are increasing by $10, and $10 is 25% of $40, so the percent change is 125%

3 0
3 years ago
Read 2 more answers
Is seven eighths greater than two eights
o-na [289]

It is because there are 7 1/8 and it is bigger than 2 1/8.
8 0
3 years ago
Read 2 more answers
Other questions:
  • I need to know how to solve 46.2x10-2
    10·1 answer
  • Given EFGH and E=45°, what is the measure of angle F?
    8·2 answers
  • Last year, there were 12,000 students at a local college. There were 2000 more female students than male students. How many male
    13·1 answer
  • Square root 8( square root 2+2)
    14·1 answer
  • Semielliptical Arch Bridge An arch for a bridge over a highway is in the form of half an ellipse. The top of the arch is 20 feet
    15·1 answer
  • What is the measure of unit in slope of years and feet
    13·1 answer
  • PLEASE HELP ASAP!!!!!
    13·1 answer
  • What are the coordinates of A? b) What are the coordinates of B?​
    10·1 answer
  • When the expression representing the parent radical function is multiplied by , the resulting graph is a
    12·2 answers
  • FRACTIONS PLS HELP <br><br> NO LINKS
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!