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
gayaneshka [121]
3 years ago
10

Let f(x)=3x-7 and g(x)=2x². Perform the function operation and then find the domain of the result.

Mathematics
1 answer:
olya-2409 [2.1K]3 years ago
6 0

Answer: A

Step-by-step explanation:

f(x)=3x-7\\g(x)=2x^2

(f-g)(x)=3x-7-(2x^2)\\(f-g)(x)=3x-7-2x^2\\(f-g)(x)=-2x^2+3x-7

You might be interested in
A wall is in the shape of a trapezium. The first level of the wall is made up of 50 bricks where as the top level has 14 bricks.
alukav5142 [94]

Answer:

i). 10 levels of the bricks

ii). 320 bricks

Step-by-step explanation:

First level contains number of bricks = 50

Second level will contain = 50 - 4 = 46 bricks

Similarly, 3rd level will contain number of bricks = 46 - 4 = 42

Therefore, sequence formed for the number of bricks in each level of the wall will be,

50, 46, 42........14

This sequence is an arithmetic sequence having,

First term 'a' = 50

Common difference 'd' = 46 - 50 = (-4)

Last term of the sequence T_{n}= 14

i). Expression representing last term will be,

  T_{n}=a+(n-1)d

  Here T_{n} = nth term

  a = first term

  n = number of term (Number of level of the wall)

  d = common difference

  By substituting these values in the formula,

  14 = 50 + (n - 1)(-4)

  14 - 50 = (-4)(n - 1)

  -36 = -4(n - 1)

  9 = (n - 1)  

  n = 9 + 1

  n = 10

ii). Number of bricks used in the wall = Sum of the sequence

   Expression for the sum of an arithmetic sequence is,

   S_n=\frac{n}{2}[2a+(n-1)d]

   S_n=\frac{10}{2}[2\times 50+(10-1)(-4)]

        = 5(100 - 36)

        = 320 bricks

4 0
3 years ago
PLEASE HELP ME (look at picture)<br>EXTRA POINTS!!!
Anvisha [2.4K]
It is kinda like a ratio blank to blank
6 0
3 years ago
9. When the sun makes an angle of o above the horizon, a building casts a shadow 17 feet long
Mkey [24]

Answer:

A. tan 38° = opposite/adjacent

opposite = (tan 38°)(adjacent)

opposite = (0.31)(17 ft)

opposite = 5.27 ft

B. height is = 5.27 ft

4 0
3 years ago
The first and fourth terms of a proportion are called the means.
expeople1 [14]

Answer:

Never is the correct answer.

Step-by-step explanation:

The 1st and 4th terms are the extremes, the 2nd and 3rd terms are the means.

6 0
1 year ago
Por favor ayúdeme con mi tarea de matemáticas... Son ecuaciones<br> 2x + 4y=10<br> -x+5=9
Hatshy [7]
X+2y-5=0
x=-4



-x=9-5
-x=4
x=-4
3 0
3 years ago
Read 2 more answers
Other questions:
  • -10 = -3x - 82<br><img src="https://tex.z-dn.net/?f=%20-%2010%20%3D%20%20-%203x%20-%2082" id="TexFormula1" title=" - 10 = - 3x
    9·1 answer
  • A directed line segment begins at F(-8, -2), ends at H(6, 4), and is divided in the ratio 8 to 2 by G.
    9·1 answer
  • In her seventh grade pre-algebra class, Ms. Cornelius gave a standardized exam prepared by the district math department. Student
    15·1 answer
  • P=6-2q<br> p=4+q<br><br> Graph the two equations
    10·1 answer
  • A recipe calls for 2/3 cup sugar to make 4/5 gallon of iced tea. How much sugar is needed to make 1 gallon of iced tea?
    14·1 answer
  • Your mom bought a car for $67,000 the value of the car depreciates by 8.5% per year write an equation that represents this scena
    8·1 answer
  • Which is true about the solution to the system of inequalities shown?
    7·1 answer
  • Maya has a piece of fabric in the shape of a parallelogram. Its height is 12 feet and its base is 18 feet. She cuts the fabric i
    5·1 answer
  • Please help me with the questions Please please please ASAP please please help please please ASAP
    14·1 answer
  • Which of the following is NOT a true statement
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!