Draw an er diagram for the following situation: a lab has several chemists who work on one or more projects. chemists also may use certain kinds of equipments on each project. o attributes of chemist include employeeid (identifier), name, and phoneno. o attributes of project include projectid (identifier), and startdate. o attributes of equipment include serialno (identifier) and cost. o the organization wishes to record assigndate, the date when a given equipment item was assigned to a particular chemist working on a specified project. o the organization also wishes to record the association between the project and chemist. a chemist must be assigned to at least one project. any number of chemists may work in a project. o a given equipment item need not be assigned, and a given project need not be assigned any equipment item.

How is the number 110 written when expanded out to place values in the base 2 (binary) number system? options: 2 x 4 + 3 x 2 + 4 x 1 1 x 2 + 1 x 2 + 0 x 2 1 x 100 + 1 x 10 + 0 x 1 1 x 4 + 1 x 2 + 0 x 1

Consider the following function main: int main() { int alpha[20]; int beta[20]; int matrix[10][4]; . . } a. write the definition of the function inputarray that prompts the user to input 20 numbers and stores the numbers into alpha. b. write the definition of the function doublearray that initializes the elements of beta to two times the corresponding elements in alpha. make sure that you prevent the function from modifying the elements of alpha. c. write the definition of the function copyalphabeta that stores alpha into the first five rows of matrix and beta into the last five rows of matrix. make sure that you prevent the function from modifying the elements of alpha and beta. d. write the definition of the function printarray that prints any onedimensional array of type int. print 15 elements per line. e. write a c11 program that tests the function main and the functions discussed in parts a through d. (add additional functions, such as printing a two-dimensional array, as needed.)

Martha is designing a single-player game. her manager suggests that she plan the design to incorporate future modifications. which principle of game design relates to planning for future modifications?