Use the quadratic formula to find the exact solutions.x2 + 35 = 5x
A. 
± 
i
B. 0, 5
C. 
± 
i
D. -5, 5
Answer: C
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Find at least three nonzero terms [including a0, at least two cosine terms (if they are not all zero) and at least two sine terms (if they are not all zero)] of the Fourier series for the given function.f(x) = 
A. f(x) = 
- 
- 
B. f(x) = 
- 
+
C. f(x) = 
+ 
-
D. f(x) = 
+ 
- 
Multiply and simplify.
? 
A. 
B. 
C. 
D. 
y
Find the relative extrema of the function, if they exist.f(x) = 
A. No relative extrema exist B. Relative maximum at (-2, 2) C. Relative minimum at (-2, 2); relative maximum at (2, -2) D. Relative minimum at (-2, 2)
In a right triangle, find the length of the side not given. Let c represent the length of the hypotenuse. Give an answer to the nearest tenth if necessary.a = 30 cm, c = 50 cm
A. b = 20 cm B. b = 10 cm C. b = 80 cm D. b = 40 cm