A circle has a diameter with endpoints at –2 + i and –6 –11i. What is the center of the circle? –8 –10i
–4 – 5i
–2 – 6i
2 + i

Aparallel system functions whenever at least one of its components works. consider a parallel system of n components, and suppose each component works independently with probability 0.5. find the conditional probability that component n works given that the system is working

Plzzz plzz maths ! quadratic sequences =an^2+bn 1) 1,6,15,28,45 2)5,18,39,68,105 3) 1,8,21,40,65 4) 7,24,51,88,135 5) -1,2,9,20,35

Determine the difference: 3.2 × 1010 – 1.1 × 1010. write your answer in scientific notation.