Find the midpoint betwen the two given points in the rectangular cordinate plane.
a. 2 + 4i and 4 + 8i
b. −3 + 7i and 5 − i
c. −4 + 3i and 9 − 4i
d. 4 + i and −12 − 7i
e. −8 − 3i and 3 − 4i
f. 23
−52
i and −0.2 + 0.4i

An eight-sided die, which may or may not be a fair die, has four colors on it; you have been tossing the die for an hour and have recorded the color rolled for each toss. what is the probability you will roll a brown on your next toss of the die? express your answer as a simplified fraction or a decimal rounded to four decimal places.

What statement is true? 2x^2-9x+2=-1

Expresa commuter train leaves downtown sation and travels at a average speed of 55 miles per hour towards the north side sation, which is 50miles away. thirty minutes later, express commuter train #7 leaves north side and travels at a average speed of 35miles per hour towards downtown sation. at the moment the two trains pass each other, how far(in miles) is train #12 from the downtown sation and how long(in minutes) has the #12 train been traveling