Graph the function defined by a radical expression. Give the domain and range.y = -2 
A. Domain: [2, ?);
Range: [0, ?)
B. Domain: [-2, ?);
Range: [0, ?)
C. Domain: [-2, ?);
Range: (-?, 0]
D. Domain: [2, ?);
Range: (-?, 0]
Answer: D
Mathematics
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Solve.Use the approximations ln 4 ? 1.386 and ln 5 ? 1.609 together with the properties of natural logarithms to calculate an approximation to ln 
.
A. 0.805 B. 0.693 C. 1.268 D. 2.589
Mathematics
Rationalize the denominator and simplify.
?
?
Your answer should be a radical expression.
What will be an ideal response?
Mathematics
Use synthetic division to find the function value.f(x) = x5 + 32; find f(-4).
A. -1008 B. -960 C. -992 D. -990
Mathematics
Prove that the identity is true.
?
What will be an ideal response?
Mathematics