Find the angle between the vectors. (First find an exact expression and then approximate to the nearest degree.) a = 4i − 3j + k, b = 7i − k

Write an algebraic expression for the word expression the quotient of c and 8

Miguel’s teacher asks him to color 4/8 of his grid. he must use 3 colors: red, blue, and green. there must be more green sections than red sections. how can miguel color all the sections of his grid to follow all the rules

An initial investment of $100 is now valued at $150. the annual interest rate is 5%, compounded continuously. the equation 100e0.05t = 150 represents the situation, where t is the number of years the money has been invested. about how long has the money been invested? use your calculator and round to the nearest whole number. years