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motikmotik
2 years ago
15

What is the product of 3 and a4+4a3+7a+9

Mathematics
1 answer:
ivolga24 [154]2 years ago
8 0

Answer:

7x^{4} - 56x^{3} + 35x^{2} + 28x - 42

Step-by-step explanation:

I hope is still help.

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A Square was altered so that one side is increased by 9 inches in the other side is decreased by 2 inches.The area of the result
LekaFEV [45]

Let s represent the length of any one side of the original square.  The longer side of the resulting rectangle is s + 9 and the shorter side s - 2.

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This is a quadratic equation and can be solved using various methods.  Let's rewrite this equation in standard form:  s^2 + 7s - 18 = 60, or:

s^2 + 7s - 78 = 0.  This factors as follows:  (s+13)(s-6)=0, so that s = -13 and s= 6.  Discard s = -13, since the side length cannot be negative.  Then s = 6, and the area of the original square was 36 in^2.

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3 years ago
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IrinaVladis [17]
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3 0
3 years ago
Sin^2xcsc^2x=sin^2x+cos^2x
Otrada [13]
The second part = 1

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hence 1 = 1
3 0
3 years ago
How can you tell if something is a function or not a function
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<span>This characteristic of non-functions was noticed by I-don't-know-who, and was codified in "The Vertical Line Test": Given the graph of a relation, if you can draw a vertical line that crosses the graph in more than one place, then the relation is not a function.</span>
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Novay_Z [31]

Answer:

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Step-by-step explanation:

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