Unit 3 Python TEST

What is the final result of the expression 4 + 5 * 3?

• 27

• 12

• 21

• 19

What is the final result of the expression 7 / 2 + 6?

• 0

• 9.5

• 9

• 0.875

Choose the print statement below that will cause an error. Assume that num has the value 6, and name has the value Isabella.

• print(name + “:” )

  print(num)

• print(name + ” wants ” + “num ” + “candies”)

• print(name + “: ” + str(num))

• print(name + “: ” + num)

Which one of the statements below will cause an error?

• ans = “hi” * 8

• ans = “hi” + 9

• ans = “hi” + “hi” + “hi”

• ans = (“a” * 4) + “b”

What does the following program print?

a = "hi"

b = 4

c = a * b

print(class(c))

• <class 'str'>

• <class 'int'>

• <class 'float'>

• The program crashes and doesn’t print anything.

Suppose you have a variable defined a = "4". What is the variable type of a?

• str

• int

• float

• number

Choose the option that correctly prints out the variable(s).

• x = "codehs"

  print(int(x))

• num = 8

  print("num")

• name = "Alyx"

  age = 32

  print(name + "is " + age)

• language = "Python"

  print("I'm learning " + language)

What kind of data does a float variable contain?

• Whole numbers

• Words

• Numbers that can have decimal components

• A float is not a Python variable type

What does the following code print?

x = 3.4

y = 1

print(int(x))

print(x + y)

• 3.4

  4.4

• 3

  4.4

• 3

  4

• The code causes an error

Which of the following options is the best way to get a number from the user that you plan to use in a mathematical equation?

• num = str(input(“Enter a number: “))

• num = number(input(“Enter a number: “))

• num = input(“Enter a number: “)

• num = int(input(“Enter a number: “))