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Digiron [165]
2 years ago
10

Add or subtract as indicated

Mathematics
1 answer:
Aliun [14]2 years ago
5 0

Option B: \frac{11x-9}{x^2-1} is the correct answer

Step-by-step explanation:

Given

\frac{5}{x+1} + \frac{6}{x-1} -\frac{10}{x^2-1}

Simplifying x^2-1

x^2-1 = (x+1)(x-1)

So,

\frac{5}{x+1} + \frac{6}{x-1} -\frac{10}{(x+1)(x-1)}\\=\frac{5(x-1)+6(x+1)-10}{(x+1)(x-1)}\\=\frac{5x-5+6x+6-10}{(x+1)(x-1)}\\=\frac{5x+6x-5+6-10}{(x+1)(x-1)}\\=\frac{11x-9}{(x+1)(x-1)}\\=\frac{11x-9}{x^2-1}

Hence,

Option B: \frac{11x-9}{x^2-1} is the correct answer

Keywords: Fractions, polynomials

Learn more about polynomials at:

  • brainly.com/question/4703807
  • brainly.com/question/4703820

#LearnwithBrainly

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Classify each pair of angels listed below as adjacent or vertical.
Stolb23 [73]

Answer:

ntersecting lines DA and CE.

To find:

Each pair of adjacent angles and vertical angles.

Solution:

Adjacent angles are in the same straight line.

Pair of adjacent angles:

(1) ∠EBD and ∠DBC

(2) ∠DBC and ∠CBA

(3) ∠CBA and ∠ABE

(4) ∠ABE and ∠EBD

Vertical angles are opposite angles in the same vertex.

Pair of vertical angles:

(1) ∠EBD and ∠CBA

(2) ∠DBC and ∠EBA

5 0
2 years ago
Translation: 6 units right and 3 units down<br> s(-3, 3), C(-1, 4), W(-2,-1)
sdas [7]
S (3, 0)
C (5, 1)
W (4, -4)

Explanation
You take the first number and add 6 to it and you get the new number and then you take the second number and subtract 3 from it

S: -3 + 6 = 3
S- 3 - 3 = 0

C: -1 + 6 = 5
C: 4 - 3 = 1

W: -2 + 6 = 4
W: -1 - 3 = -4
3 0
2 years ago
*****REALLY NEED IMMEDIATE HELP***<br> (Answer?)
Step2247 [10]

Answer:

eegstecation

Yea YEA

Step-by-step explanation:

8 0
2 years ago
sarah meeham blends coffee for tasti delight. she needs to prepare 160 pounds of blended coffee beans selling for $4.97 per poun
Viefleur [7K]
Given:
h = high quality bean ; costs 6 per pound
c = cheaper bean ; costs 3.25 per pound

160 pounds of blended coffee beans at 4.97 per pound

h + c = 160

6h + 3.25c = 160(4.97)
6h + 3.25c = 795.20

h = 160 - c

6(160-c) + 3.25c = 795.20
960 - 6c + 3.25c = 795.20
- 2.75c = 795.20 - 960 
- 2.75c = -164.80
c = - 164.80 / -2.75
c = 59.92 or 60 pounds

h = 160 - c
h = 160 - 60 
h = 100 pounds

Sarah must blend 100 pounds of high quality bean and 60 pounds of cheaper bean.
3 0
3 years ago
A company that manufactures memory chips for digital cameras uses the formula c equals 120 cube root of n squared end root plus
Galina-37 [17]

Answer:

$6062

Step-by-step explanation:

The formula we are given is

c=120\sqrt[3]{n^2}+1300

We will replace n with 250:

c=120\sqrt[3]{250^2}+1300\\ \\=120\sqrt[3]{62500} +1300\\\\=120(39.685)+1300\\\\=4762.20+1300\\\\=6062.20 \approx 6062

8 0
3 years ago
Read 2 more answers
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