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
AveGali [126]
3 years ago
5

models the cost, in dollars, of a rug with width x feet. What is the cost of a rug that is 9 feet wide?

Mathematics
2 answers:
meriva3 years ago
5 0

we are given

cost function as

f(x)=2.15(2x^2-4x-6)

we can plug x=9

and we get

f(9)=2.15(2(9)^2-4*9-6)

we can simplify it

and we get

f(9)=258...........Answer

Serga [27]3 years ago
4 0

Cost of Rug of width x = f(x) = 2.1 5 ( 2x^2 -4x -6 )

To find cost of Rug of width 9 feet , we can replace x with 9 .

This gives us f(9 ) = 2.15 ( 2 * 9^2 - 4*9 -6 )

First we work on exponent then we do multiplication inside parenthesis then we would simplify the stuff inside parenthesis

. f(9) = 2.15 ( 2* 81 - 36 - 6)

f(9) = 2.15 ( 162 - 36 -6)

f(9) = 2.15 ( 120)

= 258

Answer = $258

You might be interested in
Write the equation 5x − 2y = 10 in the form y = mx + b. y equals start fraction five over two end fraction x minus 10 y equals s
vaieri [72.5K]

Answer:

y = 5/2x - 5

Step-by-step explanation:

You have to rearrange the equation so that it is equal to y.

5x - 2y = 10

(5x - 2y) - 5x = -5x + 10

-2y = -5x + 10

(-2y)/-2 = (-5x)/-2 + (10)/-2

y = 5/2x - 5

6 0
3 years ago
The expression 1.7j-3.4 factored is?
marshall27 [118]
1.7(j-2)


Hope it helped :)
3 0
3 years ago
I need help with 14 and 15
bekas [8.4K]

Answer:

14: 9 + 5 ℎ

15: − 1 6 + 9/ 9

Step-by-step explanation:

14 : ℎ ⋅ 5 + ( 9 )

5ℎ+ (9)

^^ Re-order terms so constants are on the left

5ℎ+ ⋅ 9 also 5 ℎ+9  then after this you would wanna re arange the terms so it would be 9 + 5 ℎ

7 0
3 years ago
80Divided by 3 plz help
mojhsa [17]

Answer:

Your answer is 26.667

hope this helps

8 0
3 years ago
Find the solution of this system of two linear equations using substitution 11x+3y=103 and y =3x+1
Lesechka [4]
11x+3y=103 and y=3x+1. 

11x+3(3x+1)=103  -----> plug in (3x+1) for y in the first equation.  You will want to distribute the 3 to the 3x+1 to get something that looks like:

11x+9x+3=103    ------> now you want to combine like terms 

20x+3=103 ---> subtract 3 from both sides
20x=100   ----> divide both sides by 20
x=5    

y=3(5)+1     ---> I like to plug in this to the equation that already has y isolated.  3*5 is 15, add 1 and you find that y=16.

(5, 16) will be your final answer (:
8 0
3 years ago
Other questions:
  • When slicing a cube perpendicular to its base, parallel to its base, or diagonal to its base, what is the maximum number of side
    9·1 answer
  • You have linear functions p(x) and q(x). You know p(2)=3, and p(q(x))=4x+7 for all x. Find q(-1).
    7·1 answer
  • What is the length of BC in the right triangle below?<br> Answer in the pictures.
    8·2 answers
  • Please help reeeeeeeee
    15·2 answers
  • How many months is 82 weekdays ?
    12·1 answer
  • Continuous functions f, g are known to have the properties z 4 1 f(x) dx = 19, z 4 1 g(x) dx = 12 respectively. use these to fin
    12·1 answer
  • WILL GIVE BRAINLET !!<br><br> 2/6 + - 5/12 ( show how u get the answer )
    14·2 answers
  • Evaluate 5r-8.35s when r=12 and s=4
    12·1 answer
  • What is -36 take away 8
    15·1 answer
  • Find side BC for the triangle shown (round to the nearest tenth).
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!