Simplify -3+i/7 + i First, multiply both the numerator and
denominator by___.
A. -3 + i
B. -3 - i
C. 7 + i
D. 7 - 1

D. 7 - i

Step-by-step explanation:

(-3+i)/(7 + i)=

(-3+i)(7-i)/(7+i)(7-i)=

(-21+10i+1)/50=

(10i-20)/50=

0.2i-0.4

answer: 25.4 units

step-by-step explanation: radius = 12.7 units

diameter = twice the radius

diameter = 12.7 x 2

= 25.4

step-by-step explanation:

most likely the answer is a.

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