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Alex777 [14]
4 years ago
8

Find the difference x/7x^2-13x-24 - 2x/7x^2-30x+27

Mathematics
1 answer:
padilas [110]4 years ago
5 0

Answer:

With Tiger Adding Fractions; {((x)/(7x^2-13x-24))-((2x)/(7x^2-30x+27))} Comparing ... Step-2 : Find two factors of 189 whose sum equals the coefficient of the middle term, .... Combine the numerators together, put the sum or difference over the ...

Step-by-step explanation:

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Which of the symbols correctly relates the two numbers?<br><br> 100 ? 20
rewona [7]
We can see that 100 is greater than 20.

So we insert the greater than symbol.

And the greater than symbol is   >, note the two strokes faces the bigger number

100 > 20

I hope this explains it.
3 0
4 years ago
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A farmer has 520 feet of fencing to construct a rectangular pen up against the straight side of a barn, using the barn for one s
Setler [38]

Answer:

310\text{ feet and }210\text{ feet}

Step-by-step explanation:

GIVEN: A farmer has 520 \text{ feet} of fencing to construct a rectangular pen up against the straight side of a barn, using the barn for one side of the pen. The length of the barn is 310 \text{ feet}.

TO FIND: Determine the dimensions of the rectangle of maximum area that can be enclosed under these conditions.

SOLUTION:

Let the length of rectangle be x and y

perimeter of rectangular pen =2(x+y)=520\text{ feet}

                                                x+y=260

                                               y=260-x

area of rectangular pen =\text{length}\times\text{width}

                                       =xy

putting value of y

=x(260-x)

=260x-x^2

to maximize \frac{d \text{(area)}}{dx}=0

260-2x=0

x=130\text{ feet}

y=390\text{ feet}

but the dimensions must be lesser or equal to than that of barn.

therefore maximum length rectangular pen =310\text{ feet}

                              width of rectangular pen =210\text{ feet}

Maximum area of rectangular pen =310\times210=65100\text{ feet}^2

Hence maximum area of rectangular pen is 65100\text{ feet}^2 and dimensions are 310\text{ feet and }210\text{ feet}

5 0
3 years ago
Use the image above to write a conjecture about regular polygons and lines of symmetry
Tatiana [17]
To find conjecture about regular polygon, use the formula \frac{360}{n}

Where, n = number of sides of the regular polygone

1) Triangle
n =3
So, Conjecture of the triangle = \frac{360}{3} = 120

2) Square
n =4
So, Conjecture of the square = \frac{360}{4} = 90

3) Pentagone
n = 5
So, Conjecture of the pentagon = \frac{360}{5} = 72

4) Hexagone
n = 6
So, Conjecture of the pentagon = \frac{360}{6} = 60.
7 0
4 years ago
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Khloe and her children went into a grocery store and will buy peaches and mangos. She must buy a maximum of 7 peaches and mangos
PolarNik [594]

Answer:

Step-by-step explanation:

8 0
3 years ago
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I need help i need the statement and reason
Marina86 [1]
For number one
S: supplement.
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#2
S: supplement
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