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kakasveta [241]
3 years ago
5

Which answer? I'm stuck, please help

Mathematics
2 answers:
andriy [413]3 years ago
7 0
It would be the second one.
4(2x^2 + 5y^2)(2x^2 - 5y^2)
Lubov Fominskaja [6]3 years ago
6 0
16x^4 - 100y^4
= 4(4x^4 - 25 y^4)
= 4(2x^2 + 5y^2)(2x^2 - 5y^2)

answer is B. second choice
 4(2x^2 + 5y^2)(2x^2 - 5y^2)
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Which equation has a y intercept of 2 and a slope of 1/2?
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The second one is the answer. 
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4 years ago
When a colcano erupts the height of the peak id reduced and the upper portion is removed the height of a volcano after it erupte
WARRIOR [948]

Answer:

9670 feet

Step-by-step explanation:

The height given (8219.5 ft) is 85% OF ORIGINAL, hence original is much higher. But how do we figure this out?

<em>we translate word problem to equation.</em>

<em />

<em>8219.5 IS 85% of TOTAL</em>

<em />

Firstly, 85% = 85/100 = 0.85

Remember, is means =

of means multiplication

So we have:

<em>8219.5 = 0.85 * Total</em>

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<em>t = 8219.5/0.85 = </em><em>9670 feet</em>

8 0
3 years ago
The length of a rectangle is 5 cm more than the width and the perimeter is at least 61cm. What are the smallest possible dimensi
aleksandrvk [35]

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6 0
3 years ago
How do you simplify algebraic expressions?  
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There are many reasons one may want to simplify, rearranging to find specific values - or maybe just making it simpler
Well, let's do some examples:
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</span>y(3x+2x) + 2 = - 2y +2
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<span>And there we have it, that long expression has been simplified to something really simple.
</span>
Another example:
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</span><span>3  *  (4 *  (x +  6 + 3z) -  5 ) = 3y</span>
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7 0
3 years ago
I need help with these question! Please do step by step-
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