下面是2012年10月27日的SAT官方每日一题的内容,是关于数学方面的,题型是选择。SAT官方每日一题是collegeboard每天都会发布的题目,关于SAT考试的三个部分的各个题型。下面我们就一起来看一下这个SAT官方每日一题吧。
SAT官方每日一题之数学---选择:
Mathematics > Standard Multiple Choice
Read the following SAT test question and then click on a button to select your answer.
Ifand
, then
exceeds
by
(A)
(B)
(C)
(D)
(E)
The correct answer is
Explanation“exceeds
” is interpreted mathematically as the value of
and is evaluated as follows:

下面为大家提供一些和这些SAT官方每日一题相似的题目,供大家练习:
If , the value of
can be which of the following?
.
.
.
Answer Choices
(A) only
(B) only
(C) only
(D) and
only
(E) ,
, and
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
are true
以上就是关于2012年10月27日SAT官方每日一题中数学部分的详细内容,包括了题目和选项以及答案,后面附有一道相关的练习题。大家可以在备考SAT的过程中关注SAT每日一题的内容,这样就可以更好有不间断的练习,也就能在日积月累的过程中得到提高。