What are the modulus and principal argument of 2 = -5 - 5i? Select one:
a. 21 = 5V2, Arg z=-
Зл
4
b. [2] = 5, Arg 2 =
5л
4
c. |21 = 5, Arg z =
Зл
4
57
o d. [Z1 = 5V2, Arg z
4

Awater holding tank measures 105 m long, 50 m wide, and 8 m deep. traces of mercury have been found in the tank, with a concen- tration of 60 mg/l. what is the total mass of mercury in the tank? answer in units of kg.

Describe a situation that you could represent with the inequality x< 17

Select the correct answer from each drop-down menu. a system of equations and its solution are given below. system a complete the sentences to explain what steps were followed to obtain the system of equations below. system b to get system b, the equation in system a was replaced by the sum of that equation and times the equation. the solution to system b the same as the solution to system a.]