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Vsevolod [243]
3 years ago
8

Find the area of the figure. 6 in. 6 in. 8 in. 4 in.

Mathematics
1 answer:
Ronch [10]3 years ago
5 0

Answer:

92 inches squared

Step-by-step explanation:

6x6=36

4x(8+6)=56

56+36=92

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Answer:

A: 2,3

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Step-by-step explanation:

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Step-by-step explanation:

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3 years ago
Write a polynomial of degree 5 with zero x=0,i square root 7, -2i
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Answer:

P(x)=x^5+11x^3+28x

Step-by-step explanation:

<u>Roots of a polynomial</u>

If we know the roots of a polynomial, say x1,x2,x3,...,xn, we can construct the polynomial using the formula

P(x)=a(x-x_1)(x-x_2)(x-x_3)...(x-x_n)

Where a is an arbitrary constant.

We know three of the roots of the degree-5 polynomial are:

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We can complete the two remaining roots by knowing the complex roots in a polynomial with real coefficients, always come paired with their conjugates. This means that the fourth and fifth roots are:

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Let's build up the polynomial, assuming a=1:

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Operating the last two factors:

P(x)=(x)(x^4+11x^2+28)

Operating, we have the required polynomial:

\boxed{P(x)=x^5+11x^3+28x}

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3 years ago
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