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4 years ago

13

Which of the following is a closed statement? Question 16 options: A) z is a positive number. B) x is an odd number. C) 30 is an

odd number. D) y is not an odd number.

1 answer:

rusak2 [61]4 years ago

3 0

Answer:

Step-by-step explanation:B) x es un número impar

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N=4; 2i and 3i are zeros <br> f(-1)=50

Nonamiya [84]

Solution:- $\text{Let f(x) be any nth degree polynomial with n=4}\\$

$\text{Given that 2i and 3i are the zeroes of f(x)}$

$\text{so (x-2i) and (x-3i) are factors of f(x)}$

$\text{Since 2i is a zero of f(x) then its conjugate -2i is also a zero of f(x)}$

$\Rightarrow(x+2i) \text{is a factor}\\\text{Similarly, conjugate of 3i is -3i is also a zero of f(x) }\\\Rightarrow(x+3i)\text{is a factor}\\\text{So , }\\f(x)=k(x-2i)(x+2i)(x-3i)(x+3i)\\=k(x^2-(2i)^2)(x^2-(3i)^2)\\=k(x^2-4i^2)(x^2-9i^2)\\=k(x^2+4)(x^2+9)\\=k(x^4+13x^2+36)\\\text{As given}\\f(-1)=50\\\Rightarrow k((-1)^4+13(-1)^2+36)=50\\\Rightarrow k(1+13+36)=50\\\Rightarrow k(50)=50\\\Rightarrow k=1\\\text{So by substituting k=1 in f(x) we get ,}\\f(x)=(x^4+13x^2+36)$

6 0

4 years ago

(2x - 1)<br> (4x + 28)°

Sati [7]

Answer: 8x^2° + 52x° + 27°

Using the knowledge i know i think this is the right answer

Have a great day :)

4 0

3 years ago

The equation for the circle is (x-2)^2 + (y-1)^2 = 4<br><br> True<br> or<br> False???

jasenka [17]

True because the center is (2,1) and radius is 2

8 0

3 years ago

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What are the output values for this data set:<br><br> { (0,8), (1,9), (2,13), (3,23) }?

kirill115 [55]

Answer:

its 8,9,13,23 or b

Step-by-step explanation:

toke the test

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3 years ago

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Please help and can you sow work.

Anvisha [2.4K]

First thing solve for missing side using Pythagorean theorem 20^2=16^2+a^2 then solve for a and we get a=12. Then we can use Toa which means tan=o/a so if we plug in those values we get tan(theta)=16/12

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3 years ago