If neither a nor b are equal to zero, which answer most accurately describes the product of (a + bi)(a - bi)? a. the real part is not positive
b. the imaginary part is positive
c. the real part is zero
d. the imaginary part is zero

What is the base of 1/9 to the power of 2

How do i start to solve? would appreciate a walk-thru! a bird sitting 16ft above the ground in an apple tree dislodges an apple. after how many seconds does the apple land on the ground? (assuming that no branches will interfere with it's fall)

Write 5(6x+4)-2(5x-2) in the form a(bx+c) where a, b and c integers and a> 1