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
masha68 [24]
2 years ago
8

Skye says that x^3 – a^3 = (x – a)(x^2 + ax + a^2) is a polynomial identity because when she substitutes 2 in for x and 3 in for

a she gets –19 on both sides of the equation.
Part A: Do you agree with Skye’s statement? Show your argument.
Part B: How else could you prove if x^3 – a^3 = (x – a)(x^2 + ax + a^2) is a polynomial identity?
Mathematics
1 answer:
Nady [450]2 years ago
5 0

Answer:  x^3 - a^3 = (x - a) (x^2 + ax + a^2) is an identity

Step-by-step explanation:

Verify the identity using trig rules.

You might be interested in
Which of the following best describes the graph of this system of equations ? y=-2x+3 and 5y=-10x +15
ELEN [110]

Remark

When talking about straight lines, D is never true. Never.

C is possible, but in this case not true. Read on.

B. Might be true but in this case it is not. The lines (to be parallel) have to have the same number in front of the x. These two lines do when you divide through by 5. But the y intercept has to be different. That is not so in this case. So B is incorrect.

A is your answer. If you divide through by 5 on the second one, you get the first one. They are identical.

6 0
3 years ago
10. The sides of a number cube have the numbers 9, 3, 5, 3, 7, and 9. If the
ddd [48]

Answer:

1/3 or 33.333333333%

Step-by-step explanation:

Two 9's

Six number possible

2/6= 1/3

Probability:

1/3 or 33.33333333%

3 0
3 years ago
Read 2 more answers
What is the transformation of C(9, 3) when dilated with a scale factor of 1/3,
Harman [31]

The transformation of C(9, 3) when dilated with a scale factor of 1/3, using the point (3, 6) as the center of dilation would be an option B: C'(3,1).

<h3>What is Dilation transformation?</h3>

A dilation transformation is a transformation that changes the size of the original figure but the shape remains unchanged.

If any figure is dilated by a scale factor k with the center of dilation as the origin.

Then the change of transformation in each of the vertices of the figure is given:

(x,y) → (kx, ky)

It is given a point C which is located at C(9,3).

Hence, here k=3

We get:

C(9,3) → C'(9×3,3×3)

C(9,3) → C'(27,9) = C'(3,1)

Hence, the transformation of C(9, 3) when dilated with a scale factor of 1/3, using the point (3, 6) as the center of dilation would be an option B: C'(3,1).

Learn more about dilation;

brainly.com/question/6639345

#SPJ1

3 0
1 year ago
A PAIR OF JEANS MARKED AT R450 IS SOLD AT DISCOUNT OF 25%.​
Stolb23 [73]

Original price is the jeans = Rs450

Discount = 25%

Discount amount

= 25% of 450

= 25%(450)

= 25/100 × 450

= 25/10 × 45

= 5/2 × 45

= 225/2

= Rs112.5

Price after discount

= original price - discount amount

= 450 - 112.5

= Rs337.5

4 0
3 years ago
A. Alternate exterior angles
tresset_1 [31]

Answer:

D

Step-by-step explanation:

Supplementary = 180 degrees aka straight line

3 0
3 years ago
Other questions:
  • Six less than twice a number is -22
    5·1 answer
  • Simplest form for 11 .751
    8·1 answer
  • Jubal wrote the four equations below. He examined them, without solving them, to determine which equation has no solution.
    8·2 answers
  • Which equation represents the graph led function?
    14·1 answer
  • The graph of an equation is shown below. Which of the following points is a solution to the equation?
    11·2 answers
  • A customer buys 17.01 in gas and requests one five dollar [$5] lottery ticket, two one dollar [$1] lottery tickets, and one [$3]
    10·1 answer
  • Which figure represents the image of trapezoid LMNP after a reflection across the x-axis? figure A figure B figure C figure D
    5·2 answers
  • Sandy works at a clothing store. She makes $7 per hour plus earns 10% commission on her sales. She worked 80 hours over the last
    8·1 answer
  • Which expression is exactly equivalent to 5a + 3b + 4 + 7a + 9 ?
    15·2 answers
  • What order do I put it in?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!