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madreJ [45]
3 years ago
14

A²- b² = a² + b² = (a + b)³ =

Mathematics
1 answer:
trasher [3.6K]3 years ago
5 0

Answer:

a²- b²=(a+b)(a-b)

a² + b²=(a+b)²-2ab or (a-b)²+2ab

(a + b)³=a³+3a²b+3ab²+b³ or, a³+b³+3ab(a+b)

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Which pair of ratios form a proportion?
leva [86]

Answer:

D: 5 : 8 and 20 : 32

Step-by-step explanation:

A is incorrect because 3 x 1.33 = 4 and 4 x 1.25 = 5.

B is incorrect because 10 x 1.6 = 16 and 12 x 1.5 = 18.

C is incorrect because 7 x 1.428 = 10 and 10 x 1.4 = 14.

D is correct because 5 x 4 = 20 and 8 x 4 = 32.

another way of solving the ratio answers is by putting them in a fraction 5/8 = .625 and also does 20/32 = .625.....

Easy right!?

Hope I Helped!

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4 0
3 years ago
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2 years ago
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Montano1993 [528]

Answer: 67.27

Step-by-step explanation:

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4 0
3 years ago
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Answer:

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Explanation

In order to do this without multiplication, place the fractions in ascending order.

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From this it logically follows that the fractions in ascending order are:

1/4, 2/2, 13/5

Therefore the products in ascending order are:

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Novay_Z [31]
Multiply the 4 and 5, and add the exponents

8 0
2 years ago
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