Goal programming: a. is not an iterative solution procedure. b. requires the use of only hard constraints. c. involves solving problems containing a collection of goals that we would like to achieve. d. requires firm rhs values of the constraints.

Which quantities are scalars? choose all that apply a.distance b.speed c. acceleration d.velocity

Give your knowledge of these things in your paper, you will compare and contrast analog and digital signals to determine which is more reliable for encoding and transmitting information. you’ll compare these features: signal shape numerical values for signal measurements amount of data that can be transmitted energy requirements privacy and security (ability of the signal to be encoded in a secret code) clarity of signal in the space provided, write down what you already know about any of these features. if you’re not sure, write down questions you might have about the features.

Astudent creates a model of a closed ecosystem by filling a glass tank half full with water, then adding 10 snails and two small aquatic plants. the next day, all the snails are dead. what is the most likely cause of their death?