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2 years ago

6

PLEASE HELP!!! What are the cross products of the problem of the proportion 12/20=3/5

1 answer:

suter [353]2 years ago

7 0

Just divide 12/20 by 4/4 and you will get 3/5.

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2/3 of the cost of the sweater is $18

blagie [28]

The total of the sweater is $27.
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And 2/3 would be $18.

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3 years ago

Ben kaç yasındayım<br>A 12<br>B 10<br>C 8<br>D 14

Vsevolod [243]

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Step-by-step explanation:

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2 years ago

What are the solutions to the quadratic equation 4x2=64?

Paraphin [41]

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2 years ago

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36% of what number is 18?

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3 years ago

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Find the smallest integer n for an O(xn) estimate of order of the function f(x)

alexdok [17]

Answer with explanation:

$f(x)=\frac{(x^3+x^2+5)(x^4-3x^2)}{(2x^2+2x-3)(4x^2+7)}\\\\f(x)=\frac{x^3\times (x^4-3x^2)+x^2 \times (x^4-3x^2)+5 \times (x^4-3x^2)}{2x^2\times (4x^2+7)+2x(4x^2+7)-3\times (4x^2+7)}\\\\f(x)=\frac{x^7-3x^5+x^6-3x^4+5x^4-15x^2}{8x^4+14x^2+8x^3+14 x-12x^2-21}\\\\f(x)=\frac{x^7+x^6-3x^5+2x^4-15x^2}{8x^4+8x^3+2x^2+14 x-21}$

The largest degree of numerator is 7 , while the largest degree of denominator is 4.So, as we know

$\frac{x^a}{x^b}=x^{a-b}\\\\\frac{x^7}{x^4}=x^{7-4}\\\\=x^3$

→So, order of the function is the highest degree in the function raised to power.Highest degree is 3,when you will reduce the function in Expression form.

So, Degree=3

Order=1

6 0

3 years ago