MATHEMATICS HIGH SCHOOL

Which polynomial equations have -i as one of their roots? 1. x^3 + 5x^2 - 20 = 0

2. x^3 - x^2 + x - 1 = 0

3. x^3 + 3x^2 + x + 3 = 0

4. x^3 - 2x^2 + x - 2 = 0

5. x^3 - 6x^2 - 16x + 96 = 0

Answers

Answer 1
Answer: i = sqrt(-1)
i^2 = -1
(-i)^2 = (-i)(-i) = i^2 = -1
(-i)^3 = (-i)(-i)(-i) = (-i)(i^2) = i

use these facts to find which equation is correct if x = -i

i bet on 2,3 or 4

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Y-1/x+3=-3/4 how do you solve for y

Answers

( y-1)/(x+3) =- (3)/(4)\n \nx+3\neq 0\n \nx\neq -3 \n \nD=R\setminus \left \{ -3 \right \}

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Find the slope of the line that passes through (3,7) and (5,4)

Answers

Answer:

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Step-by-step explanation:

y2-y1/x2-x1

7-4/3-5

3/-2

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How far from zero would you move on the x-axis to reach the point (10,8)

Answers

Answer:

You would move 10 units to the right from zero on the x-axis

Answer:

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Using graph paper, determine the line described by the given point and slope. Click to show the correct graph below. (0,6) and -1​

Answers

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Step-by-step explanation:

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If ΔABC is similar to ΔDEF, the m∠A = 50°, and m∠E = 70°, what is m∠C?A) 60°
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Answers

Answer: A) 60^(\circ)

Step-by-step explanation:

Given: ΔABC is similar to ΔDEF

Therefore,

∠A=∠D=50°

∠B=∠E=70°

∠C=∠F

Using Angle sum property, in triangle ABC, we get

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The angle sum property of a triangle says that, the sum of all the angles in a triangle is 180^(\circ).
Ok so if they are similar that means equal angles so 50+70=120 then 180-120=60 so the answer is A. #TeamAlvaxic

What is the vertex of the graph of the equation y= 3x^2+6x+1

Answers

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