Ask question

Ask question

All categories

2 years ago

13

The polynomial equation x^3-4x^2+10=x^2-5x-3 has complex roots 3+2i What is the other root? Use a graphing calculator and a syst

em of equations.

1 answer:

siniylev [52]2 years ago

4 0

Answer:

2

Step-by-step explanation:

1

You might be interested in

Calculate the distance between the points G=(-2, 2) and C = (5, -1) in the coordinate plane.

bulgar [2K]

Answer: sqrt(58)

Step-by-step explanation:

8 0

2 years ago

If 818=8,707=5,452=2,1247=?

kozerog [31]

Answer:

the answer is(5)

Step-by-step explanation:

4 0

3 years ago

A box contains 5 red balls, 6 white balls and 9 black balls. Two balls are drawn at

valina [46]

Answer:

$P(Same)=\frac{61}{190}$

Step-by-step explanation:

Given

$Red = 5$

$White = 6$

$Black = 9$

Required

The probability of selecting 2 same colors when the first is not replaced

The total number of ball is:

$Total = 5 + 6 + 9$

$Total = 20$

This is calculated as:

$P(Same)=P(Red\ and\ Red) + P(White\ and\ White) + P(Black\ and\ Black)$

So, we have:

$P(Same)=\frac{n(Red)}{Total} * \frac{n(Red) - 1}{Total - 1} + \frac{n(White)}{Total} * \frac{n(White) - 1}{Total - 1} + \frac{n(Black)}{Total} * \frac{n(Black) - 1}{Total - 1}$

<em>Note that: 1 is subtracted because it is a probability without replacement</em>

$P(Same)=\frac{5}{20} * \frac{5 - 1}{20- 1} + \frac{6}{20} * \frac{6 - 1}{20- 1} + \frac{9}{20} * \frac{9- 1}{20- 1}$

$P(Same)=\frac{5}{20} * \frac{4}{19} + \frac{6}{20} * \frac{5}{19} + \frac{9}{20} * \frac{8}{19}$

$P(Same)=\frac{20}{380} + \frac{30}{380} + \frac{72}{380}$

$P(Same)=\frac{20+30+72}{380}$

$P(Same)=\frac{122}{380}$

$P(Same)=\frac{61}{190}$

4 0

3 years ago

Determine a scalar c so that the angle between a = i + cj and b = i + j is 45°.

Marina CMI [18]

Answer:

c=0

Step-by-step explanation:

ATQ a.b=|a||b|sin(45)

1+c=sqrt(1+c^2)*sqrt(2)*1/sqrt(2)

1+c=sqrt(1+c^2)

(1+c)^2=(1+c^2)

2c=0, c=0

6 0

3 years ago

What is the answer to 16.3-2.666

djverab [1.8K]

The answer: <span>13.634

Don't believe me? Check with a(n) calculator!</span>

4 0

3 years ago