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- How do you add (-8-9i)+(3-6i) in trigonometric form? | Socratic
For a complex number a +bi we can repesent this in trigonometric form, as z = r(cosθ +isinθ) r = √a2 + b2 θ = arctan(b a) So, for z1 = − 8 − 9i, we can find that r1 = √(− 8)2 +(−9)2 = √145 θ1 = arctan(−9 −8) However, −8 − 9i is in quadrant 3, but θ is in quadrant 1, so we need to add π θ1 = arctan(−9 −8) +π ≈ 3 9857 z1 ≈ √145(cos(3 9857) + isin(3 9857
- Question #33eb8 - Socratic
Let's call the number of weeks we are looking for: w We can then write a formula: $145 + $36w = $433 And we can now solve for w: First, subtract $145 from each side of the equation to isolate the w term while keeping the equation balanced: $145 − $145 + $36w = $433 − $145 0 + $36w = $288 $36w = $288 Now, divide each side of the equation by $36 to solve for w while keeping the equation
- What is the equation of the line with slope - Socratic
The equation of a line in slope-intercept form is y = mx + b We are given x, y, and m So, plug these values in: 11 = 12 11 ⋅ − 2 + b 11 = − 24 11 + b 11 + 24 11 = b 121 11 + 24 11 = b 145 11 = b This is how I would leave it but feel free to turn it into a mixed fraction or decimal So, our equation is y = (12 11)x + 145 11
- Question #48bcb + Example - Socratic
From this, the number of unpaired electrons seems to be: Number of unpaired electrons = S |ms| = 2 145 1 2 = 4 29 ≈ 4 So it looks like treating μS+L ≈ μS for Fe2+ is OK to determine the number of unpaired electrons For Fe3+ it should be that μS+L = μS perfectly, since the 3d is half-filled there
- An object with a mass of 16 kg is on a plane with an incline . . . - Socratic
If angle of inclination is pi 8: mu_s = 0 580 mu_k = 0 449 (see explanation regarding angle) We're asked to find the coefficient of static friction mu_s and the coefficient of kinetic friction mu_k, with some given information We'll call the positive x-direction up the incline (the direction of f in the image), and the positive y direction perpendicular to the incline plane (in the direction
- Site Map - Linear, Exponential, and Quadratic Models Questions and . . .
How do you find the lengths of the sides of the triangle? The sum of the SQUARES of two consecutive positive integers is 145 How do you find the numbers? The side of a square is 4 centimeters shorter than the side of a second square If the sum of their areas is 40 square centimeters, how do you find the length of one side of the larger square?
- Questions asked by treid14 - Socratic
Q A and Videos that make learning easy Math, History, Chemistry, Algebra, Calculus, Biology and more
- Complementary and Supplementary Angles - Socratic
What is the supplementary angle measurement of a 145 degrees angle? The ratio of two supplemetary angles is 3:6 What is the measure of the smaller angle? What is the supplementary angle to #theta= 35 6# degrees? Two angles are supplementary Angle 1 is (3x + 7)° and angle 2 is (4x - 2°) What is the value of x? Are vertical angles
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