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slava [35]
3 years ago
15

Help me again !!! ————————————————————————————————

Mathematics
1 answer:
____ [38]3 years ago
7 0
A: The expression is equivalent because it is an Associative property of Multiplication. B: The expression is not equivalent because the Commutative property does not hold for division. || I HOPE THIS HELPS!!
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400 should be the answer. Hope this helps!
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How much is 290 dimes
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Step-by-step explanation:

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3 years ago
The polynomial x^2+3x-1 is a factor of x^4+3x^3-2x^2-3x+1 true or false?
pashok25 [27]

Answer:

Yes, it is true that x^2+3x-1  is a factor of x^4+3x^3-2x^2-3x+1.

Step-by-step explanation:

Let us try to factorize x^4+3x^3-2x^2-3x+1

x^4+3x^3-2x^2-3x+1\\\Rightarrow x^4-2x^2+1-3x+3x^3

Let us try to make a whole square of the given terms:

\Rightarrow (x^2)^2-2\times x^2 \times 1+1^2+3x^3-3x\\\Rightarrow (x^2-1)^2+3x^3-3x\\

--------------

Formula used above:

a^{2} -2 \times a \times b +b^{2}  = (a-b)^2

In the above equation, we had a = x, b = 1.

--------------

Further solving the above equation, taking 3x common out of 3x^3-3x

\Rightarrow (x^2-1)^2+3x(x^2-1)\\

Taking (x^{2} -1) common out of the above term:

\Rightarrow (x^2-1)((x^2-1)+3x)\\\Rightarrow (x^2-1)(x^2+3x-1)

So, the two factors are (x^2-1)\ and\ (x^2+3x-1).

\therefore The statement that x^2+3x-1  is a factor of x^4+3x^3-2x^2-3x+1 is <em>True.</em>

7 0
3 years ago
Henry wants to estimate the cost of filling his water tank. First, he needs to find the volume of the water tank in order to fil
laila [671]

Answer:

60 ft³

Step-by-step explanation:

2 x 3 x 4 = 24

3 x 3 x (6-2) = 36

24 + 36 = 60

hope this helps :)

4 0
3 years ago
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