Solve the radical equation. Check all proposed solutions.
+ 
= 4
A. x = 2, -2
B. x = 0
C. x = -2
D. x = 
, -2
Answer: C
Mathematics
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Factor the trinomial completely. If the polynomial cannot be factored, write "prime."x4 - 3x2 - 10
A. (x2 - 10)(x2 + 1) B. (x2 - 5)(x2 + 2) C. (x2 + 5)(x2 - 2) D. prime
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For the function f whose graph is given, determine the limit.Find
f(x).
A. 
B. 3
C. 4
D. does not exist
Mathematics
Find the exact value of the expression.cos 1680°
A. 
B. - 
C. - 
D. - 
Mathematics
Provide an appropriate response.Use the method of Lagrange multipliers to determine the critical points of f(x, y) = x + 2y subject to the constraint xy = 8.
Fill in the blank(s) with the appropriate word(s).
Mathematics