SAT Subject Test Mathematics Level 2

5 . D

First   use your    calculator  to  solve   for θ:

Then    find    the tangent of  the result:

tan (41.4°) ≈   0.88

6 . B
A y-intercept of 6 means that one point on the line is (0,6). Plug x = 0 and y = 6 into the
answer choices, and you’ll find that only (B) and (C) work. Now test those two choices with
the x-intercept (−2,0). Of (B) and (C), only (B) works this time.

7 . D
To add fractions, you need a common denominator. Here the LCD is 6y:

8 . B

Let y   represent   the average score   for the boys.   Fifteen girls   average x,  so  their   15  scores  add

up  to  15x.    Ten boys    average y,  so  their   10  scores  add up  to  10y.    The 25  students    average 90,

so  their   scores  add up  to   25  ×  90  =   2,250.  Now you can set up  an  equation    and solve   for y.  The

girls’  total   and the boys’   total   add up  to  the grand   total   of  2,250: