Simplify. Write your answers in the form of a+bi, where a and b are real numbers.(8 - 
) (4 + 
)
A. 4388 + 1112 i
B. 98 - 64 i
C. -98 + 64 i
D. 98 + 64 i
Answer: D
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Solve the equation. Use words or set notation to identify equations that have no solution, or equations that are true for all real numbers. 22x + 11(x + 1) = 33(x + 1) - 22
A. {x|x is a real number} B. ? C. {1} D. {0}
Solve the problem.The pH of a solution ranges from 0 to 14. An acid has a pH less than 7. Pure water is neutral and has a pH of 7. The pH of a solution is given by 
where H+ represents the concentration of the hydrogen ions in the solution in moles per liter. Find the pH if the hydrogen ion concentration is 
A. 2.8 B. 3.8 C. 2.2 D. 3.2
Solve area problem.A room measures 14 ft by 
The ceiling is 
above the floor. the door is 
by 
A gallon of paint will cover 79.7 ft2. How many gallons of paint are needed to paint the room (including the ceiling and not including the door). Round you answer up the the next whole number.
A. 10 gallons B. 14 gallons C. 23 gallons D. 4 gallons
Find the coordinates of the labeled points.
A. A(4, 6); B(0, -6) B. A(-4, 6); B(0, 6) C. A(4, 6); B(0, 6) D. A(4, -6); B(1, -6)