Express each of the following in the form a + hi, with a, b E lR. (a) (2 - i)(1 + i) (b)

Introductory Chemistry 5
Determine the number of protons and electrons in each ion. (a) \(\mathrm{Al}^{3+}\) (b) \(\mathrm{S}^{2-}\) (c) \(\mathrm{I}^{-}\) (d) \(\mathrm{Ag}^{+}\)

Understandable Statistics 9
Cowboys: Longevity How long did real cowboys live? One answer may be found in the book The Last Cowboys by Connie Brooks (University of New Mexico Press). This delightful book presents a thoughtful sociological study of cowboys in West Texas and Southeastern New Mexico around the year 1890. A sample

Campbell Biology 10
In mechanism, photophosphorylation is most similar to a. substrate-level phosphorylation in glycolysis. b. oxidative phosphorylation in cellular respiration. c. carbon fixation. d. reduction of NADP+ .

Modern Chemistry 1
Nitrous acid, HNO2, is a weak electrolyte. Nitric acid, HNO3, is a strong electrolyte. Write equations to represent the ionization of each in water. Include the hydronium ion, and show the appropriate kind of arrow in each equation.

Principles of Economics 6
The price of cheese rises from $6 to $10 per pound, while the price of wine remains $3 per glass. For a consumer with a constant income of $3,000, show what happens to consumption of wine and cheese. Decompose the change into income and substitution effects.

Concepts of Biology 1
What is the main difference between dispersal and vicariance? a. One leads to allopatric speciation, whereas the other leads to sympatric speciation. b. One involves the movement of the organism, whereas the other involves a change in the environment. c. One depends on a genetic mutation occurring, w

Principles of Economics 9
A college student has two options for meals: eating at the dining hall for $6 per meal, or eating a Cup O Soup for $1.50 per meal. Her weekly food budget is $60. a. Draw the budget constraint showing the trade- off between dining hall meals and Cups O Soup. Assuming that she spends equal amounts on b