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3 years ago

A polynomial has a root that equals 5-7i. Name one other root of this polynomial

Mathematics

1 answer:

marta [7]3 years ago

3 0

5+7i is another root.

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Lesson 5: Lines and Triangles Geometry A Unit 4: Parallel and Perpendicular Lines

aev [14]

The Triangle Sum Theorem states that the sum of the angles of a triangle equal 180°.
Therefore,
45° + 62° + k = 180
107° + k = 180
k = 73°
The value of k is 73°

3 0

3 years ago

Read 2 more answers

Complete the remainder of the

N76 [4]

Answer: 2, 4, 6, 8

Step-by-step explanation:

Just plug x into the equation for each one.

x = -3

$y=\frac{2(-3)}{3} +4\\y=\frac{-6}{3} +4\\y=2$

With this one, you can see it is a linear equation and for every increase of 3 on x, y in increased by 2.

x -6 -3 0 3 6

y 0 2 4 6 8

8 0

2 years ago

Jimmy owns a small engine repair business. The revenue, in dollars, can be modeled by the equation y = 420 + 72x, where x is the

kozerog [31]

Answer:

5 hours

Step-by-step explanation:

Given

$y = 420 + 72x$ --- Revenue

$y = 24x^2 + 180$ --- Overhead cost

Required

Determine the hours for break even

To do this, we simply equate both expressions as follows:

$24x^2 + 180 = 420 + 72x$

Collect Like Terms

$24x^2 - 72x + 180 - 420 = 0$

$24x^2 - 72x -240 = 0$

Divide through 24

$x^2 - 3x - 10 = 0$

Expand:

$x^2 -5x + 2x -10 = 0$

Factorize:

$x(x -5) + 2(x -5) = 0$

$(x + 2)(x -5) = 0$

$x + 2 = 0\ or\ x - 5 = 0$

$x = -2\ or\ x = 5$

But x can't be negative because it represents time.

<em>So, x = 5 hours</em>

3 0

3 years ago

What is the value of 5 in the number 0.865?

otez555 [7]

It is the smallest part of the number

7 0

3 years ago

Question 1 (2 points)

vitfil [10]

Answer:

Step-by-step explanation:

121/11=11

5 0

3 years ago

Read 2 more answers

A polynomial has a root that equals 5-7i. Name one other root of this polynomial​

A polynomial has a root that equals 5-7i. Name one other root of this polynomial