What is 950,000,000 in scientific notation?

Suppose you want just guess at the answers in a 5 question multiple-choice test. each question has 3 responses and only one is correct. what is the probability of getting two questions right just guessing? 20 points 0.3275 0.2753 0.7532 none of the above

Let x = a + bi and y = c + di and z = f + gi. which statements are true?

What are the domain and range of f(x)= -log5(x+2)