Find a simplified value for x by inspection. Do not use a calculator.
?
?
x = __________
Fill in the blank(s) with the appropriate word(s).
72
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Solve the problem.Find the height of a pine tree that casts a 47-foot shadow on the ground assuming that the angle of elevation from the point on the ground at the tip of the shadow to the sun is 64°. Round your answer to the nearest foot.
A. 23 ft B. 21 ft C. 96 ft D. 42 ft
Provide an appropriate response.Why does a quadratic function never have an inverse?
What will be an ideal response?
Calculus can be used to find the slope of the line tangent to a curve. The slope of the tangent to the curve 
at 
is f'(a). Use f'(x) to find the slope of the tangent to 
at the given value of x.f'(x) = -x4 + 3x3 + 5x2 - 8x + 13 at x = 2
A. 25 B. 31 C. 57 D. -1
Rationalize the denominator and simplify. Assume that all variables represent positive real numbers.
A. 
B. 
C. 
D. 