this is for javascript

When you use the relational operators, you can compare

Question 1 options:

	a variable with a literal value
	a variable with another variable
	a variable with an arithmetic expression
	all of the above
	A and B only

Question 2 (1 point)

The equal to (==) and not equal to (!=) operators should

Question 2 options:

	not be used to compare floating-point numbers
	not be used in a conditional expression
	not be used with the isNaN() method

Question 3 (1 point)

What value is returned by the following expression? !isNaN("12.345")

Question 3 options:

	true
	false
	NaN
	undefined

Question 4 (1 point)

Which of the following is NOT a relational operator?

Question 4 options:

	>
	>=
	!=
	=

Question 5 (1 point)

Which of the following will test whether a Boolean variable named isValid is true?

Question 5 options:

	isValid == true
	isValid
	!isValid == false
	all of the above

Question 6 (1 point)

If you use a short-circuit operator to combine two expressions

Question 6 options:

	both expressions are always evaluated
	the second expression is evaluated only if it can affect the result
	the first expression is evaluated only if it can affect the result
	the result of each expression is reversed

Question 7 (1 point)

In the following statement, which expression is evaluated first? var truth = !A || B && (C || D)

Question 7 options:

	!A
	B && (C || D)
	C || D
	!A || B

Question 8 (1 point)

The condition for a while loop is tested

Question 8 options:

	before the statements in the loop are executed
	after the statements in the loop are executed
	before and after the statements in the loop are executed
	before or after the statements in the loop are executed, depending on how the condition is coded

Question 9 (1 point)

If you want the block of code in a loop to be executed at least once, you would normally use

Question 9 options:

	a while loop
	a for loop
	a do-while loop
	either A or C

Question 10 (1 point)

When the code that follows is executed, a message is displayed if the value the user enters var userEntry = (prompt("Enter cost:"); if (isNaN(userEntry) || userEntry > 500 ) { alert ("Message"); }

Question 10 options:

	isnt a number or the value in userEntry is more than 500
	isnt a number and the value in userEntry is more than 500
	is a number or the value in userEntry is more than 500
	is a number and the value in userEntry is more than 500

Question 11 (1 point)

After the code that follows is executed, what is the value of discountAmount? var discountAmount; var orderTotal = 200; if (orderTotal > 200) { discountAmount = orderTotal * .3; } else if (orderTotal > 100) { discountAmount = orderTotal * .2; } else { discountAmount = orderTotal * .1; }

Question 11 options:

	0.0
	20.0
	40.0
	60.0

Assume that the variables named entry and number have starting values of 9 and 3 respectively. What is the value of entry after the following statements are executed? if ((entry > 9) || (entry/number == 3)) { entry--; } else if (entry == 9) { entry++; } else { entry = 3; }

Question 12 options:

	3
	8
	9
	10