At what point does the terminal side of the angle π in standard position intersect the unit circle?

Which of the following circles have their centers in the third quadrant?

Use your knowledge of the binary number system to write each binary number as a decimal number. a) 1001 base 2= base 10 b) 1101 base 2 = base 10

Solve the equation for b: a= (1/2)(b)(h)