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
yulyashka [42]
3 years ago
14

What is the sum of the polynomials? (7x^3 – 4x^2) + (2x^3 – 4x^2) 5x^3 9x^3 5x^3 – 8x^2 9x^3 – 8x^2

Mathematics
2 answers:
Natalka [10]3 years ago
7 0

Answer:

\large\boxed{9x^3-8x^2}

Step-by-step explanation:

(7x^3-4x^2) + (2x^3-4x^2)\\\\=7x^3-4x^2+2x^3-4x^2\\\\\text{combine like terms}\\\\=(7x^3+2x^3)+(-4x^2-4x^2)\\\\=9x^3-8x^2

sveticcg [70]3 years ago
5 0

Answer:

9x^3 - 8x^2

Step-by-step explanation:

Let's simplify step-by-step.

7x^3−4x^2+2x^3−4x^2

=7x^3+−4x^2+2x^3+−4x^2

Combine Like Terms:

=7x^3+−4x^2+2x^3+−4x^2

=(7x^3+2x^3)+(−4x^2+−4x^2)

=9x^3+−8x^2

I hope this helps you ! :))

You might be interested in
State the type of angles and solve for the yven vatizble.
Alika [10]

Answer:

1st option

Step-by-step explanation:

The 2 angles are alternate exterior angles and are congruent , so

3x = 2x + 20 ( subtract 2x from both sides )

x = 20

4 0
3 years ago
Can someone please help with finding the surface area..
Vsevolod [243]

Answer:

it is 20.5

Step-by-step explanation:

you need to add all of the numbers together

5 0
3 years ago
Read 2 more answers
Part 2. Which of the following descriptions represent the transformation shown in the image​
Over [174]

Answer:

  a.  rotation; then reflection across x

Step-by-step explanation:

The transformation shown is a reflection across the y-axis.

The first part of each answer choice is a rotation 180°. That rotation is fully equivalent to reflection across both the x- and y-axes, in either order. In order to have a net effect of reflection across the y-axis, the reflection across the x-axis must be cancelled--by another reflection across the x-axis.

The reflection across y shown is equivalent to ...

  rotation 180° followed by reflection across the x-axis.

7 0
3 years ago
a particular beach is eroding at a rate of 4 centimeters per year. a realtor converts this rate to millimeters per day. which ex
Over [174]

Answer:

Answer

0.109589 millimeters per day.

Explanation

10 mm = 1 cm

4 cm = 4 × 10

        = 40 mm

365 days = 1 year

rate to millimeters per day = 40 mm in 365 days

                                            = 40/365  mm/day

                                             = 8/73 mm/day

                                       or    = 0.109589 mm/day.

Rate to millimeters per day = 0.109589 millimeters per day.

Step-by-step explanation:

5 0
4 years ago
Can you just give me the equation to it?
kenny6666 [7]

Well, they would need $103,322 more to break even so, they would need at least $103,323 to make a profit.

8 0
3 years ago
Read 2 more answers
Other questions:
  • Which substance is a mixture?<br> salt<br> gasoline<br> aluminum<br> carbon dioxide
    13·2 answers
  • Help me find measurement please.
    6·2 answers
  • The process of solving systems of equations when you add the two equations together in hopes of eliminating a variable is..
    15·1 answer
  • Solve for x. 3x-(5-2x)=x-21
    11·1 answer
  • Last Wednesday, two friends met up after school to read the book they were both assigned in Literature class. Beth can read 3 pa
    15·1 answer
  • A student received a coupon for 13% off the total purchase price at a clothing store. Let C be the original price of the purchas
    10·1 answer
  • I'm really lost . can somebody plz help ​
    14·2 answers
  • William has been contracted to paint a school classroom. The classroom is 20 m long, 15 m wide and 5 m high. There are four wind
    8·2 answers
  • The circumference of a circle is 6.28 cm. What is the circle's radius?​
    10·2 answers
  • Choose the best answer that represents the property used to rewrite the expression.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!