Answer:
C. 4(cos(300°) +i·sin(300°))
Step-by-step explanation:
The magnitude will be ...
magnitude = √(2^2 +(-2√3)^2) = √(4+12) = 4
The negative imaginary part puts the angle in the 4th quadrant. The answer choice with a magnitude of 4 and a 4th-quadrant angle is ...
4(cos(300°) +i·sin(300°))
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If you want to figure the angle, it will be ...
angle = arctan(Im()/Re()) = arctan(-2√3/2) = arctan(-√3) = -60°
The corresponding 4th-quadrant angle is 300°.
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<em>Comment on answer choices</em>
Answer choice A is <em>another representation of the same number</em>. Typically, we want the magnitude to be positive in polar form, so that answer can be avoided on those grounds.
Answer:
-14x+4y
this is the correct answer.
Answer:
£13,268.34
Step-by-step explanation:
16.5% of £15890.23
= 16.5/100 × £15890.23
= 0.165 × £15890.23
= £2,621.88795
Therefore,
£15890.23 - £2,621.88795
= £13,268.34205
Approximate to 2 decimal place
= £13,268.34
Answer:
Michal and Jhon have 22 beads altogether.
Step-by-step explanation:
2 plus 20 equals 22.
Answer:
Step-by-step explanation:
A. m < b = 150
m < d = 60
m < c = 120
B. m < a = 20
m < b = 160
m < c = 110
Post Test
65 and 115
