Provide an appropriate response.Change 23' 13" to a decimal part of a degree.
A. 0.39°
B. 0.6°
C. 0.01°
D. 23.13°
Answer: A
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Find the derivative of y.y = ln(sech (8x + 5))
A. 
B. -tanh (8x + 5)
C. tanh (8x + 5)
D. -8 tanh (8x + 5)
Find the area of the circle. Use 3.14 or 
for ? as indicated.Use 3.14 for ?.
A. 22.05065 mi2 B. 88.2026 mi2 C. 16.642 mi2 D. 33.284 mi2
Simplify. Write your answers in the form of a+bi, where a and b are real numbers.(7 + 4i)(5 - 6i)
A. 11 + 62i B. 59 + 22i C. 59 - 22i D. -24i2 - 22i + 35
Use the Rational Zeros Theorem to find all the real zeros of the polynomial function. Use the zeros to factor f over the real numbers. f(x) = x4 + 15x2 - 16
A. -4, 4; f(x) = (x - 4)(x + 4)(x2 + 1) B. -1, 1; f(x) = (x - 1)(x + 1)(x2 + 16) C. 1; f(x) = (x - 1)2(x2 + 16) D. -1, -4, 1, 4; f(x) = (x - 1)(x + 1)(x - 4)(x + 4)