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2 years ago

Simplify (x+y)(x-y)(x^2+y^2)

Mathematics

1 answer:

Marianna [84]2 years ago

3 0

Answer:

x⁴-y⁴

Step-by-step explanation:

=(x+y)(x-y)(x²+y²)

=(x²-y²)(x²+y²)

=x⁴-y⁴

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1. 12 = x + 3<br> 2. b+0.6= -1<br> 3. a+(-4)= -13<br> 4. x+27= -12<br> 5. a+(-1.2)= -5.5

Archy [21]

1. 12=x+3 12-3=9 now try 9+3 that is 12 so x=9
2. b+0.6=-1 -1-0.6=-1.6 -1.6+0.6=-1 b=-1.6
3. a=-9
4. x=-39 I believe
5. a=-4.3

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3 years ago

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Use the explicit formula an=a1+(n-1)

Ronch [10]

The anwser is a hope it helps

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3 years ago

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What percent of 15% of 60

AveGali [126]

Answer:

the answer is 9

Step-by-step explanation:

15/100 ?/60

multiply 60 by 15 to get 900, the divide 900 by 100 to get <em>9</em>

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2 years ago

What is the equation of the line that is perpendicular to the given line and passes through the point (3, 4)?

Lady_Fox [76]

Answer:

Step-by-step explanation:

$\text{The slope-intercept form of an equation of a line:}\\y=mx+b\\m-slope\\b-y\ intercept$

$\text{The formula of a slope:}\\\\m=\dfrac{y_2-y_1}{x_2-x_1}$

$\text{Let}\ k:y=m_1x+b_1,\ l:y=m_2x+b_2,\ \text{then}\\\\l\ \perp\ k\iff m_1m_2=-1\to m_2=-\dfrac{1}{m_1}\\\\l\ \parallel\ k\iff m_1=m_2\\=========================$

$\text{From the graph we have two points (-3, 2) and (0, 1).}\\\text{Calculate the slope of the given line:}\\\\m=\dfrac{1-2}{0-(-3)}=\dfrac{-1}{3}=-\dfrac{1}{3}.\\\\\text{Therefore the slope of the perpendicular line is:}\\\\m=-\dfrac{1}{-\frac{1}{3}}=3\\\\\text{Put it and the coordinates of the point (3, 4) to the equation of a line:}\\\\4=3(3)+b\\4=9+b\qquad\text{subtract 9 from both sides}\\-5=b\to b=-5\\\\\text{Finally:}\\\\y=3x-5$

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3 years ago

A football stadium has 9,607 seats. At one game, people sat in 7,599 of the seats. How many seats were empty? What is the total

Mila [183]

9607-7599= 2008

So there are 9607 seats

7599 were full

Then that leaves 2008 seats empty

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3 years ago