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3 years ago

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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Planet Mass (in grams) Jupiter 1.989 ∙ 10^30

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400 should be the answer. Hope this helps!

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3 years ago

How much is 290 dimes

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$29.00 and you can also multiply too is is a cool way

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Please Help! Freshman in Highschol for Algebra 1

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Disagree 15 minutes

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:

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

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Formula used above:

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

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

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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>

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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 :)

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3 years ago

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