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Over [174]
3 years ago
12

What is the form of the Difference of Squares identity?

Mathematics
1 answer:
Feliz [49]3 years ago
3 0
The difference identity of two squares can be stated as:

a² - b² = (a + b)(a -b)

i.e. the product of sum of two numbers with the difference of two numbers. This can be easily proved.

For example, Let a = 4 and b = 3

so, a² - b² = 16 - 9 = 7

a + b = 4 + 3 = 7
a - b =4 - 3 = 1

(a + b )(a - b) = 7 x 1  = 7

Thus,

a² - b² = (a+b)(a-b)

So, option C gives the correct answer
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Answer

y = 2x 

Explanation
The first thing is to find the gradient of the line.

Gradient = Δy/Δx
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Now a general point (x, y) and one of thegiven points.

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So, here’s a math question for you: Suppose you set your confidence level at "I think I know it," which means that you’re initia
stiks02 [169]

Answer:

The answer is 20 points

Step-by-step explanation:

If the points is based on 100 by rating, and your confidence level of 'I think I know it' places you on the initial risk of 80 points as suggested, which eventually places you on the wrong side, you will be left with the following:

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3 years ago
? X 1/4 = 1/3 <br><br> Need help please
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Answer:

?= 4/3

Step-by-step explanation:

?×1/4=1/3

?/4=1/3

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3 0
3 years ago
Sharon buys four salmon steaks for $22.95 at her local supermarket. The weights of the steaks, in pounds, are 0.68, 0.74, 0.77,
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Answer:

$7.65

Step-by-step explanation:

Given that:

Money used for buying the four salmon steaks = $22.95

Weights of steaks in pounds = 0.68, 0.74, 0.77, and 0.81

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Price of salmon steak per pound, to the nearest cent = ?

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Total weight of all 4 steaks = 0.68 + 0.74 + 0.77 + 0.81 = 3

Here, to find the price of salmon steak per pound we need to divide the total money used to buy salmon steaks with the total weight of salmon steaks in pounds.

Price of salmon steak per pound = \frac{22.95}{3} = \$7.65

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