Identify the given number as "Rational", "Irrational", or "Not a real number". If the number is rational, give its exact value. If the number is irrational, give a decimal approximation to the nearest thousandth.-
A. Rational, 900
B. Not a real number
C. Irrational, 42.426
D. Irrational, -42.426
Answer: D
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Find the derivative of the function by first expanding or simplifying the expression. f(x) = 
A. f'(x) = x + 5 B. f'(x) = 10x C. f'(x) = 5 D. f'(x) = 1
Translate into an equation, and then solve the equation.What number divided by seven equals four?
A. 7 ÷ x = 4; 28 B. 7x = 4; 28 C. x ÷ 7 = 4; 28 D. x - 7 = 4; 11
Graph the parabola. Identify the vertex, axis, domain and range.f(x) = 
x2 - 6
A. Vertex: (0, 6); Axis: x = 0;
Domain: (-?, ?); Range: [6, ?)
B. Vertex: (0, -6); Axis: x = 0;
Domain: (-?, ?); Range: [-6, ?)
C. Vertex: (0, -6); Axis: x = 0;
Domain: (-?, ?); Range: [-6, ?)
D. Vertex: 
; Axis: x = 0;
Domain: (-?, ?); Range: 
, 
Use the unit circle and any appropriate relationship among the trigonometric functions to find the value.
csc 
A. - 
B. - 
C. - 
D. - 