Find the zeros of the quadratic function using the Square Root Method. List the x-intercepts of the graph of the function.f(x) = x2 - 49
A. x = 7
B. x = -7, x = 7
C. x = -7
D. x = -2,401, x = 2,401
Answer: B
Mathematics
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Write the expression in terms of sine and cosine, and simplify so that no quotients appear in the final expression.sin2 x + sin2 x cot2 x
A. cot2 x + 1 B. cot2 x - 1 C. 1 D. sin2 x + 1
Mathematics
Find the directrices of the hyperbola.
- 
= 1
A. y = -4 ± 
B. x = 2 ± 
C. x = ± 
D. x = 2 ± 
Mathematics
Solve the inequality. Write the solution set in interval notation.(x + 4)(x + 3)(x - 9) > 0
A. (-4, -3) ? (9, ?) B. (9, ?) C. (-?, -3) D. (-?, -4) ? (-3, 9)
Mathematics
Rewrite the quadratic function in standard form by completing the square.f(x) = x2 - 6x + 7
A. f(x) = (x + 3)2 - 2 B. f(x) = (x + 3)2 + 2 C. f(x) = (x - 3)2 + 2 D. f(x) = (x - 3)2 - 2
Mathematics