What is the value of 15i/2+i ? –3 + 6i 3 + 6i 5 + 5i 5 – 5i

3 + 6i

multiply the numerator/ denominator by the conjugate of 2 + i

the conjugate of 2 + i = 2 - i

= ( 30i - 15i² ) / (4 - i² ) → ( i² = (√-1 )² = -1 )

= = 6i + 3

its a little blurry tbh

step-by-step explanation:

answer: 25.4 units

step-by-step explanation: radius = 12.7 units

diameter = twice the radius

diameter = 12.7 x 2

= 25.4