The correct answer is D
Explanation
Roman Numeral Answer Format
Roman Numeral 
: Can the value of be 
?
You could test this answer by substituting for 
in the equation and seeing whether the result is true. But you can also reason this question out without substituting numbers:
If= , then 
is a positive number, because any nonzero number squared is positive.
If = , then 
is negative.
So is negative and 
is positive.
Therefore, cannot be .
Mark Roman numeral with an “F” for false.
Roman Numeral 
: Can the value of be 
?
This is a very easy substitution to make:
Roman numeral is true, so mark it with a “T” for true.
Roman Numeral 
: Can the value of be 
?
Substitute for :
If =, then 
.
Also, 
.
Roman numeral is true, so mark it with a “T” for true.
Check the Answers:
You now know whether each of the Roman numeral statements is true or false:
is false.
is true.
is true.
Find the choice that says only and
Mathematics > Standard Multiple Choice
Read the following SAT test question and then click on a button to select your answer.
If 
, the value of can be which of the following?
.
.
.
(A) only
(B) only
(C) only
(D)and only
(E),and
