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
Ratling [72]
3 years ago
15

Choose one of the factors of x^3 + 343.

Mathematics
1 answer:
Debora [2.8K]3 years ago
3 0

First, note that 343=7^3. Then use the formula for the sum of perfect cubes:

a^3+b^3=(a+b)(a^2-ab+b^2).

Therefore,

x^3 + 343=x^3+7^3=(x+7)(x^2-7x+49).

The quadratic trinomial x^2-7x+49 couldn't be factored anymore, so the expression x^3 + 343 has two factors x+7 and x^2-7x+49.

Answer: correct choice is A.

You might be interested in
Match each term with its definition.
Nesterboy [21]

Answer:

that is the answer

mark me as brainliest kid

8 0
3 years ago
2 complementary angles are in the ratio 7:8.find the angles
slavikrds [6]
Complementary angles add up to 90 degrees
7:8....added = 15

7/15 * 90 = 630/15 = 42 <== one angle is 42 degrees
8/15 * 90 = 720/15 = 48 <== other angle is 48 degrees
3 0
3 years ago
Which of the following is an arithmetic sequence?
seropon [69]

Answer:

B

Step-by-step explanation:

Brainliest please, thanks :)

6 0
3 years ago
I need to know what the answer is
wel
(x/2)-(5x/6)=1/9
x=-1/3
7 0
4 years ago
The degree measure of an angle and its supplement are consecutive odd integers. Find the measure of each angle.
Daniel [21]

Answer:

89

91

Step-by-step explanation:

Supplementary means the pair of angles that have this relationship add up to 180 degrees.

If you assume n is odd, then the very next odd number is n+2.

Example 5 is odd and the next odd number after 5 is 7. This fits the pattern of n and n+2 when n=5.

So we are given the degree measurement of an angle and it's supplement are consecutive odd integers.

So let's pretend the supplement of A is B. This means A+B=180.

We are also given A and B are consecutive odd integers, so this means we are going to let A=n and B=n+2.

Let's put this into our equation for A+B=180:

(n)+(n+2)=180

n  + n+2 =180

2n     +2 =180

Subtract 2 on both sides:

2n          =178

Divide both sides by 2:

 n           =178/2

Simplify right hand side:

 n           =89

If n=89, then n+2=89+2=91.

Does 89+91=180? Yep.

Are 89 and 91 consecutive odd numbers?  Yep.  

Here are some consecutive numbers including those: 89,90,91

Yes 91 is the next odd number after 89.

3 0
3 years ago
Read 2 more answers
Other questions:
  • What is the expanded form of 373,698
    11·2 answers
  • The area of sector AOB is 20.25 pi ft ^2 . Find the exact area of the shaded region.
    15·1 answer
  • Which of the following is equal to the fraction below?<br>(4/5)^6​
    14·1 answer
  • A quality control expert at LIFE batteries wants to test their new batteries. The design engineer claims they have a standard de
    13·1 answer
  • Oday, everything at a store is on sale. The store offers a 20% discount.
    9·1 answer
  • If f(x)=x+1 and g (x)=2x^2-2x-1 what is (gof)(x)
    15·2 answers
  • 0 is a polynomial. T or F
    15·2 answers
  • Write the ratio of corresponding sides for the similar triangles and reduce the ratio to lowest terms.
    8·2 answers
  • Hello :) so I'm horrible at math, but since finals are coming up I want to calculate what my final grade will be if I were to fa
    6·2 answers
  • When x = 1/2, what is the value of 8x-3/x?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!