Add or subtract. Then simplify by collecting like radical terms, if possible. Assume that no radicands were formed by raising negative numbers to even powers.4
+ 
A. cannot simplify
B. 12
C. 7
D. 5
Answer: C
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Graph the function, showing all asymptotes (those that do not correspond to an axis) as dashed lines. List the x- and y-intercepts.f(x) = 
A. x-intercept: 
; y-intercept: 
;
B. x-intercept: 
; y-intercept: 
;
C. x-intercept: 
; y-intercept: 
;
D. x-intercept: 
; y-intercept: 
;
Answer the question(s) based on the following situation: For a population of 4000 students taking the SAT math exam, the scores on the exam have an approximately normal distribution with mean ? = 610 and standard deviation ? = 60.Approximately how many students scored more than 570 points?
A. 3360 B. 2720 C. 1000 D. 3000 E. none of these
Provide an appropriate response.Playing a fair "shell game," the probability of winning the game should be given by p = 
. One person plays the game 50 times but only wins 7 times. Using n = 50, approximate P(X = 7) by using the normal approximation.
Fill in the blank(s) with the appropriate word(s).
Factor the polynomial completely.9x4 + 12x2 + 4
A. (9x2 + 2)(x2 + 2) B. (3x2 + 1)(3x2 + 4) C. (3x2 - 2)(3x2 - 2) D. (3x2 + 2)(3x2 + 2)