Question

Can someone please help me and give me a hint on what exactly to do ???
What is the least degree of a polynomial function whose zeros include 5 and 3i? Explain.
Plsss help :(

Answer 1

if the polynomial has a zero of 5, then one factor is \(x-5\)

Answer 2

Why didnt you help me @satellite73 :(

Answer 3

if it has a zero of \(3i\) then it has another zero of \(-3i\)
therefore it has two more factors \((x-3i)(x+3i)\)

Answer 4

if you multiply that out, you get \[(x-3i)(x+3i)=x^2+9\] so your final job is to multiply
\[(x-5)(x^2+9)\]

Answer 5

@KendrickLamar2014 where is your question?

Answer 6

Amelia sees two cubic sculptures. She estimates the edge length of the larger sculpture is between 2.5 and 3 times the edge length of the smaller one. How much greater should she estimate the volume of the larger sculpture to be? Explain

Answer 7

i did answer this
\(2.5^3\) to \(3^3\) @KendrickLamar2014

Answer 8

@FibonacciChick666 said ir was wrong?

Answer 9

Thank you (:

Answer 10

@satellite73 I did this other problem and it said to solve the equation and state the type of root and this was the problem x^2+4x+7=0 and I got 2-square root of 11 but idk what the root is,like what does that mean ??

Answer 11

x^2 + 4x + 7 = 0
x = { -4 +/- sqrt(4^2 - 4(1)(7)) } / (2*1)
= { -4 +/- sqrt(16-28) } / 2
= { -4 +/- sqrt(-12) } / 2
= { -4 +/- sqrt(-4*3) } / 2
= { -4 +/- 2i * sqrt(3) } / 2
= -2 +/- i * sqrt(3)
The roots are: - 2+isqrt(3) and - 2-isqrt(3)
Type of roots: They are complex roots.

Answer 12

Thank you so much

Answer 13

You are welcome.