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3 years ago

Three zeroes of a fifth degree polynomial function are 1/3,4-6i, and -2+11i . Determine the

Mathematics

2 answers:

UNO [17]3 years ago

4 0

If a polynomial with real coefficient has a complex zero, the conjugate of that number will be a zero as well.

So, if 4-6i is a zero, 4+6i will be a zero as well

If -2+11i is a zero, -2-11i will be a zero as well

So, the zeroes are

$\dfrac{1}{3},\ 4-6i,\ 4+6i,\ -2+11i,\ -2-11i$

marysya [2.9K]3 years ago

4 0

Answer:

Step-by-step explanation:

As the other helper has pointed out, the imaginary zeros occur in pairs. So the other two zeroes are 4+6i and -2-11i.

Here are some answers of your Chemistry questions:

1. How many valence electrons does a helium atom have? (1 point)

2. What is the formula of the ion formed when potassium achieves noble-gas electron configuration? (1 point)

K+

3. How does oxygen obey the octet rule when reacting to form compounds? (1 point)

It gains electrons.

4. What is the basis of a metallic bond? (1 point)

the attraction of metal ions to mobile electrons

5. An ionic bond is a bond between ____. (1 point)

a cation and an anion

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Write an equation in slope-intercept form of the line shown.

7nadin3 [17]

Answer:

$y = 2x - 5$

Step-by-step explanation:

Find the slope using the points, (1, -3) and (3, 1):

$slope(m) = \frac{y_2 - y_1}{x_2 - x_1} = \frac{1 -(-3)}{3 - 1} = \frac{4}{2} = 2$

m = 2

Find the y-intercept (b) by substituting x = 1, y = -3, and m = 2 in $y = mx + b$

$-3 = (2)(1) + b$

$-3 = 2 + b$

Subtract 2 from both sides

$-3 - 2 = 2 + b - 2$

$-5 = b$

$b = -5$

Plug in the value of m and b into the slope-intercept form equation, $y = mx + b$ .

Thus:

$y = 2x +(-5)$

✅ $y = 2x - 5$

5 0

3 years ago

The manager of a department store uses the given function to model the monthly opening inventory of down comforters at the store

tangare [24]

Answer: $d(x)=-750x^2-3750x-10500$

Step-by-step explanation:

Given: The manager of a department store uses the given function to model the monthly opening inventory of down comforters at the store, in dollars, where x represents the number of months from September.

$d(x)=-750(x^2-5x-14)$

To rewrite this hat reveals the store's opening inventory of down comforters in the month of September, multiply -750 on the bracket, we get

$d(x)=-750x^2-3750x-10500$

6 0

3 years ago

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The sequence an = 8, 13, 18, 23, ... is the same as the sequence a1 = 8, an = an-1 + 5.

harkovskaia [24]

Actually, this answer would be true. Why?

The first equation is: a(sub n) = 8, 13, 18, 23

The second is: a(sub 1)=8 ; a(sub n)= a(sub n-1)+5
if you wish to find the second term, plug two into the equation for n
8+5=13
to find the third, plug the second term, 13, in for n.
13+5=18.

Hope this helped! I know it's a bit on the late side, but at least you can get the general idea!

8 0

4 years ago

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8³=512 indique a base

EleoNora [17]

Answer:

Step-by-step explanation:

8^3 = 8*8*8 = 512

la base = base = 8

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3 years ago

A cone-shaped paper cup can hold 35 cubic inches of food. If the radius of the cone is 2.4 inches, what is the height of the con

SVETLANKA909090 [29]

$\bf \textit{volume of a cone}\\\\
V=\cfrac{\pi r^2 h}{3}~~
\begin{cases}
r=radius\\
h=height\\
-----\\
r=2.4\\
V=35
\end{cases}\implies 35=\cfrac{\pi (2.4)^2 h}{3}\implies 105=5.76\pi h
\\\\\\
\cfrac{105}{5.76\pi }=h\implies 5.805467091295 \approx h\implies 5.81 \approx h$

7 0

3 years ago

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