Identify the equation of the circle that has its center at (-3, -4) and passes through the origin.

For the rule of 78, for a 12-month period, the last term in the sequence is 12 and the series sums to 78. for an 10 month period, the last term is and the series sum is . for a 15 month period, the last term is and the series sum is . for a 20 month period, the last term is and the series sum is

What is the value of the expression i 0 × i 1 × i 2 × i 3 × i 4? 1 –1 i –i

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