Find the sum of 10 + 5i and its complex conjugate.
Write your answer in the form a + bi

Acar started driving from city a to city b, distance between which is 620 miles, at a rate of 60 mph. two hours later a truck left city b and started moving towards city a at a rate of 40 mph. what distance from city a is the point where the truck and the car will meet?

If a is a nonzero real number then the reciprocal of a is

Consider circle o, where and . m∠bpd °. °.