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ArbitrLikvidat [17]
3 years ago
12

A+b : [(4+5i) + (1+5i)] . (1+i) =a+bi

Mathematics
1 answer:
r-ruslan [8.4K]3 years ago
3 0
F4534545566(6)66767788
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A square has an area of 81 yd^2. what is the length of each side
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Answer:

9 yards

Step-by-step explanation:

A square has 4 equal sides, this means the 2 sides we will multiply to get the area are going to be the same. Since it says 81 yards squared and the shape is a square, we can do the square root of 81 which is 9.

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A) Find a polynomial, which, when added to the polynomial 5x2–3x–9, is equivalent to: 18
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Answer:

a) -5x^{2}+3x+27

b) -5x^{2}+3x+9

Step-by-step explanation:

a) Let the required polynomial be p(x).

We have the relation, 5x^{2}-3x-9 + p(x) = 18

i.e. p(x) = 18 -5x^{2}+3x+9

i.e. p(x) = -5x^{2}+3x+27


b) Let the required polynomial be q(x).

We have the relation, 5x^{2}-3x-9 + q(x) = 0

i.e. q(x) = 0 -5x^{2}+3x+9

i.e. q(x) = -5x^{2}+3x+9

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