Add or subtract by first simplifying each radical (if needed) and then combining any like radical terms.
+ 
+ 
+ 10
A. 102
B. 23
+ 79
C. 23
+ 16
D. 265
+ 571
Answer: B
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Describe the largest set S on which it is correct to say that f is continuous.f(x, y) = 
A. {(x, y): 6x + 10y ? 0} B. Entire plane C. {(x, y): x + y ? 0} D. {(x, y): 6x + 10y ? 0}
Perform the indicated operations, expressing the answer in simplest form with rationalized denominators.
A. 
B. 22
C. 
D. 44
Provide an appropriate response.What is the x-intercept of the function f(x) = log(x + 4)?
A. (5, 0) B. (-3, 0) C. (-4, 0) D. (4, 0)
Provide an appropriate response.The series of sketches below starts with an equilateral triangle having sides of length 1 (one). In the following steps, equilateral triangles are constructed by joining the midpoints of the sides of the preceding triangle. Develop a formula for the area of the nth new triangle. Use math induction to prove your answer.
What will be an ideal response?