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
andrew-mc [135]
3 years ago
11

Which expression is equivalent to the given polynomial expression?

Mathematics
1 answer:
ivolga24 [154]3 years ago
6 0

Answer:

C. -31m⁴n - 8m²

Step-by-step explanation:

Given:

(9mn - 19m⁴n) - (8m² + 12m⁴n + 9mn)

Required:

Determine an expression equivalent to it

Solution:

(9mn - 19m⁴n) - (8m² + 12m⁴n + 9mn)

Distribute the negative sign to open the parentheses

9mn - 19m⁴n - 8m² - 12m⁴n - 9mn

Combine like terms

9mn - 9mn - 19m⁴n - 12m⁴n - 8m²

-31m⁴n - 8m²

Therefore, -31m⁴n - 8m² is an equivalent expression of (9mn - 19m⁴n) - (8m² + 12m⁴n + 9mn)

You might be interested in
Solve using the quadratic formula: 2x2-9x+12=0
marta [7]

Answer:

no solution

Step-by-step explanation:

For getting the nature of solution of the quadratic equation of the form:

ax² + bx + c = 0

We need to find Discriminant which is:

Discriminant (D) = b² - 4ac

  • If D < 0, there is no solution of equation.
  • If D = 0, there are two equal and real solution of equation
  • If D < 0, there are two real and distinct solution of equation

Here we have equation is:

2x² - 9x + 12 = 0

∴ a=2, b = -9, c = 12

⇒ D = 81 - 4 × 2 × 12 = -16 < 0

Hence, there is no solution of given equation.

5 0
4 years ago
Which of the following quadrilaterals have diagonals that are perpendicular to each other? Check all that apply.
mars1129 [50]

Answer: Option B and option D.

Step-by-step explanation:

We know that a quadrilateral is a 2-dimensional closed shape that has four sides.

By definition the diagonals of a quadrilateral are the lines that connect two non-adjacent vertices.

The following quadrilaterals have diagonals that are perpendicular to each other (also known as perpendicular bisector diagonals), which means that they form four angles of 90 degrees (right angles): <em>Rhombus and Square.</em>

Therefore the answers are: the option B and the option D.

4 0
3 years ago
The Browns are moving across the country. Mr. Brown leaves 3.5 hours before Mrs. Brown. If he averages 45 mph and she averages 9
Alex Ar [27]
I believe it would be 3.5 hours
5 0
4 years ago
The right rectangular prism below is made up of 8 cubes. Each cube has an edge length of 12 inch.
AysviL [449]

Answer:

1 in³

Step-by-step explanation:

Complete question

The right rectangular prism below is made up of 8 cubes each cube has an edge length of 1/2 inch what is the volume of this prism

Volume of a cube = l³

If each cube has an edge length of 1/2 inch, then:

Volume of each cube = 1/2³

Volume of each cube = 1/8

Volume of the prism = 8×1/8

Volume of the prism = 1 in³

4 0
3 years ago
Two groups of students were asked how far they lived from their school. The table below shows the distances in miles:
Finger [1]
<span>The best answer is C because 2.17 x 2=4.34

</span><span>C. Its value for group A is double the value for Group B.</span>
3 0
3 years ago
Other questions:
  • A soup can, shaped like a cylinder, has a diameter of 3.5 inches and a height of 5 inches. Each serving of soup is 15 cubic inch
    10·1 answer
  • How do I expand or factor the following alebraic expressions:
    11·1 answer
  • 4 - 3x = 8 - 4x Plz answer this question
    13·2 answers
  • Which best describes the relationship between the successive terms in the sequence shown?
    12·1 answer
  • 8x + 4 = 4(2x – 3) n
    8·1 answer
  • Which expression is equivalent to: 7a + 5 (Give an explanation)
    9·1 answer
  • Why am i getting more unitelligent
    7·1 answer
  • I need help with this please​
    12·2 answers
  • Can someone help me out. Paying big points
    15·1 answer
  • Please help, question in pic
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!