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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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Find the distance between the points. (Round your answer to two decimal places. (9.7, - 2.8), (- 3.2, 8.8)

Dmitry [639]

Answer:

Rounding it to two decimal places, we get distance, $d=17.35$

Step-by-step explanation:

Given:

The two points are $(9.7, -2.8)\textrm{ and }(-3.2, 8.8)$

The distance between the two points can be obtained using the distance formula which is given as:

$d=\sqrt{(x_{2}-x_{1})^2+(y_{2}-y_{1})^2}$

Here, for the points, $(9.7, -2.8)\textrm{ and }(-3.2, 8.8)$

$x_{1}=9.7,x_{2}=-3.2,y_{1}=-2.8,y_{2}=8.8$

Therefore, the distance between the points is:

$d=\sqrt{(-3.2-9.7)^2+(8.8-(-2.8))^2}\\d=\sqrt{(-12.9)^2+(8.8+2.8)^2}\\d=\sqrt{(12.9)^2+(11.6)^2}\\d=\sqrt{166.41+134.56}\\d=\sqrt{300.97}=17.348$

Rounding it to two decimal places, we get $d=17.35$

7 0

3 years ago

19. If a school board determines that there should be 3 teachers for every 50 students, how many teachers are needed for an enro

WINSTONCH [101]

Answer:

324 teachers

Step-by-step explanation:

3 teachers of every 50 students

__ teachers of 5400 students

so,

$5400 \div 50 = 108$

therefore,

$3 \times 108 = 324$

7 0

3 years ago

Read 2 more answers

The cost of coffee is determined by the type of coffee beans that are mixed together. The cost of a local mix of Arabica and Rob

Yuki888 [10]

250 pounds of Robusta beans.

3 0

2 years ago

Read 2 more answers

A train 100 m long crosses a pole in 5 seconds.Find the speed of the train in kilometre per hour.

In-s [12.5K]

Answer:

$\sf72 km/h$

Step-by-step explanation:

Distance covered by the train in crossing the pole = 100 m.

$\sf Time \: taken=5 \: seconds$

$\sf \: Speed \: of \: the \: train = \frac{Distance }{Time}$

$\sf = \frac{100}{5} \: m/s$

$\sf \: = 20 \: m/s$

$\sf \: = 20 \times \frac{18}{5} \: km/h$

$\sf = 72 \: km/h$

Hence, the speed of the train is 72 km/h

6 0

2 years ago

I need help on this<br>

Dvinal [7]

Answer:

1/12, 1/10

Step-by-step explanation:

P(Bead bracelet and red shoes) - 3/3 x 2 x 2

3/12=1/4 for bead bracelet

Red shoes - 1/3

Total probability for P(Bead bracelet and red shoes=1/4 x 1/3=1/12

P(Elastic bracelet and black shoes)

2/3 x 2 x 2

2/12=1/6 for elastic bracelet

Black shoes - 3/5

Total probablility for P(Elastic bracelet and black shoes)=1/6 x 3/5=3/10=1/10

Hope I helped!

5 0

3 years ago