If a quadratic equation has 4-i as a solution, what must the other solution be?

Mathematics

1 answer:

Luden [163]3 years ago

6 0

Answer:

4+i

Step-by-step explanation:

A complex number usually took the form a+bi where a and b are real numbers and 'i' represents an imaginary number. For a quadratic equation, the complex roots for the root of a quadratic equation took the form known as complex conjugates. The complex conjugates are formed by changing the sign of the imaginary part.

SO, if a quadratic equation has 4-i as a solution, the other solution must be 4+i.

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Robert decides to repaint his ceiling, which is 14 ft by 20 ft. He wants to make sure to not paint the circular light fixture wi

alexandr402 [8]

Answer:

273 square feet

Step-by-step explanation:

According to the scenario, computation of the given data are as follows,

Total ceiling area = 14ft × 20ft = 280 square feet

Diameter of circular light fixture = 3 feet

Radius of circular light fixture = 1.5 feet

So, Area of circular light fixture = π $r^{2}$

= $3.14(1.5)^{2}$

= 3.14 × 2.25

= 7.065 or 7 square feet

So, area for painting = Total ceiling area - Area of circular light fixture

= 280 - 7

= 273 square feet

6 0

3 years ago

PLEASE HELP!!!!<br> -or show me where i can get this answer online<br> A<br> B<br> C<br> D

statuscvo [17]

Answer: C

Step-by-step explanation:

Standard form for multi-variable expession( quadratic, trinomial, polynomial, etc) are represented by something like this.

ax^2+ bx+c, which means the stating term is the degree or exponet with the highest number then as we go right the degree go smaller.

So that means 5x^4 will be the starting term so a and b are ruled out. The next term will be x squared o x^2 so the only answer that has it second is C

4 0

3 years ago

Read 2 more answers

Jenny draws the path to walk from her house over to her grandmother's house. She knows that she has to avoid the end of the segm

Mademuasel [1]

Her answer should look like y = x + 2, x ≤ 2

<h3>How to determine the equation?</h3>

The complete question is added as an attachment

From the attached graph, we have the following points

(x, y) = (2, 4) and (0, 2)

See that the difference between the y and x values is 2 where y > x

So, we have