Form a polynomial, f(x), with real coefficients having the given degree and zeros.

1 answer:

4 0

The question indicates that 4i and 5i are imaginary so, they cannot have real roots.

f(x) = (x - 4i)(x + 4i)(x - 5i)(x + 5i)
Then simplify it and it would look like this,

(x^2 + 16)(x^2 + 25)

Simply it again.
x^4 + 16x^2 + 25x^2 + 400 x^4 + 41x^2 + 400 <span>
The polynomial that is required is
</span><span>f(x) = x^4 + 41x^2 + 400</span>

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Casey has a job doing valet parking. Casey makes an hourly rate of $4.55 per hour plus tips. Last week Casey worked 26 hours and

Svet_ta [14]

Answer:

Step-by-step explanation:

4.55*26 = $118.30 <- This is how much she made from work

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A theater charges $5.25 per ticket. The theater has already sold 40 tickets. Write and solve an inequality that represents how m

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ale4655 [162]

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Solve for x. round to the nearest tenth

konstantin123 [22]

Answer:

x ≈ 11.1

Step-by-step explanation:

Using the cosine ratio in the right triangle.

cos42° = $\frac{adjacent}{hypotenuse}$ = $\frac{x}{15}$ ( multiply both sides by 15 )