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bearhunter [10]
3 years ago
6

Help is needed plz. I'll give 15 points !

Mathematics
2 answers:
erastovalidia [21]3 years ago
7 0

x ≠ 1 and x ≠ 3 are the two restrictions

Step-by-step explanation:

  • Step 1: In the given expression, the denominators are x - 1 and x - 3. If the denominators become zero, the answer cannot be defined.

A number divided by zero cannot be defined, so the denominators cannot be zero.

⇒ x - 1 = 0

∴ x = 1

⇒ x - 3 = 0

∴ x = 3

So these are the two restrictions, x ≠ 1 and x ≠ 3  

german3 years ago
4 0
.............X≠3 and X≠1..............
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FACTORIZE AND Split the middle term: 72 + b - b^2​
seraphim [82]

Answer:

- (b - 9)(b + 8)

Step-by-step explanation:

72 + b - b² ← factor out - 1 from each term and rearrange into standard form

= - (b² - b - 72) ← factor the quadratic

Consider the factors of the constant term (- 72) which sum to give the coefficient of the b- term (- 1)

The factors are - 9 and + 8

Use these factors to split the b- term

b² - 9b + 8b - 72 ( factor the first/second and third/fourth terms )

b(b - 9) + 8(b - 9) ← factor out (b - 9) from each term

(b - 9)(b + 8)

Then

72 + b - b² = - (b - 9)(b + 8)

7 0
2 years ago
Sydney says that four eights is closer to 0 than to1.is she correct.explain
Fudgin [204]
4/8 = 1/2 which traditionally is rounded up to one, but technically is 1/2 away from both 0 and 1 - does that make sense?

8 0
3 years ago
A rectangular sign is 4 times its width if the perimeter is 20 inches what is the signs area.
zvonat [6]

Answer: 1,600 cubic inches

Step-by-step explanation: 20x4=80 multiply both sides 80x20=1,600 cubic inches

3 0
3 years ago
Use the formula to evaluate the senes 6 + 2 +2/3+2/9....
Kazeer [188]

Answer:

18

Step-by-step explanation:

a=6

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S_{\infty}=a/(1-r)=6/(1/3)=6*3=18

6 0
3 years ago
How do I do this problem??
Crank
Expanding 8x^3, we multiply 8*8 and x^3 by x^3 to get 64x^6. Since we know that the cube root of 64 is 4, we can separate that. Next, since you add exponents while multiplying, 6/3 is the exponent for the cube root of x^6=x^2. Therefore, your answer is 4x^2
5 0
3 years ago
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