Find a complex number for which f (a + bi) is a real number. Which of the following complex number would give you a real number
when evaluated in the function f (x) = x2 + 4x + 7
a. 2-3i
b. 1-2i
c. 4+2i
d. -2-4i

What is the area of the trapezoid shown ?

Create a question with this scenario you could ask that could be answered only by graphing or using logarithm. 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.

Julie goes to the sports store and spends $40.50 before tax. she buys a pair of shorts for $21.75 and 3 pairs of socks that each cost the same amount. how much does each pair of socks cost? $$