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Nat2105 [25]
3 years ago
12

(a-b) ( a+b) simplify​

Mathematics
1 answer:
BlackZzzverrR [31]3 years ago
4 0

Answer:

a^2 - b^2

Step-by-step explanation:

1. (a)(a)+(a)(b)+(-b)(a)+(-b)(b)

2. a^2 + ab - ab - b^2

3. a^2 - b^2

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3 years ago
Let xij = gallons of component i used in gasoline j. Assume that we have two components and two types of gasoline. There are 8,0
Mnenie [13.5K]

Answer:

option c) x₁₁ + x₁₂ = 8000

Step-by-step explanation:

Given:

xij = gallons of component i used in gasoline j

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3 0
3 years ago
Thirty percent of Irma’s Boutique’s sales came from leggings. They sold $390 worth of leggings last week. What were the total sa
RUDIKE [14]

Answer:

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Step-by-step explanation:

Given that:

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Let,

x be the total sales in the week.

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0.3x = 390

Dividing both sides by 0.3

\frac{0.3x}{0.3}=\frac{390}{0.3}\\x=1300

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(5 + 2) + 1 = 5 + (2 + 1)
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