If i2 = −1 and a = (i + 7), which is the result of squaring a? A) 49i
B) 49 + i
C) 48 + 14i
D) 49 + 14i

David estimated he had about 20 fish in his pond. a year later, there were about 1.5 times as many fish. the year after that, the number of fish increased by a factor of 1.5 again. the number of fish is modeled by f(x)=20(1.5)^x. create a question you could ask that could be answered only by graphing or using a logarithm.

Which of the following constants can be added to x2 - 3x to form a perfect square trinomial?

What is the measure of each of the two angles formed by the bisector of the diagonal of a rhombus if the original angle measures 58 degrees?