In Section 2.3.3, we note that our Vector class supports a syntax such as v = u + [5, 3, 10, −2, 1], in which the sum of a vector and list returns a new vector. However, the syntax v = [5, 3, 10, −2, 1] + u is illegal. Explain how the Vector class definition can be revised so that this syntax generates a new vector.

Write a program that prompts the user to input a string. the program then uses the function substr to remove all the vowels from the string. for example, if str = "there", then after removing all the vowels, str = "thr". after removing all the vowels, output the string. your program must contain a function to remove all the vowels and a function to determine whether a character is a vowel.

Selling a product through an electronic medium is

Why is investing in a mutual fund less risky than investing in a particular company's stock? a. mutual funds only invest in blue-chip stocks. b. investments in mutual funds are more liquid. c. mutual funds hold a diversified portfolio of stocks. d. investments in mutual funds offer a higher rate of return.