-4x^2-5(x+3)+x^2 :
-4x^2-5x-15+x^2
-3x^2- 5x -15
Answer: z = 6i / (4+3i)
Step-by-step explanation: Rectangular form:
z = 0.72+0.96i
Angle notation (phasor):
z = 1.2 ∠ 53°7'48″
Polar form:
z = 1.2 × (cos 53°7'48″ + i sin 53°7'48″)
Exponential form:
z = 1.2 × ei 0.2951672
Polar coordinates:
r = |z| = 1.2 magnitude (modulus, absolute value)
θ = arg z = 53.1301° = 53°7'48″ = 0.2951672π angle (argument or phase)
Cartesian coordinates:
Cartesian form of imaginary number: z = 0.72+0.96i
Real part: x = Re z = 0.72
Imaginary part: y = Im z = 0.96
Hope this helps!
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~Jarvis
Answer:
$6.83
Step-by-step explanation:
37 x 59 = 2183
Because it is dollars you need to divide it by 100:
$21.83 - 15 = 6.83
Let the nomber of 2 pointers be x and that of 3 pointers be y, then
2x + 3y = 30 . . . (1)
x = y + 5 . . . (2)
Putting (2) into (1), gives 2(y + 5) + 3y = 30
2y + 10 + 3y = 30
5y = 30 - 10 = 20
y = 20/5 = 4
x = 4 + 5 = 9
