Provide an appropriate response.What are the common errors one might make in simplifying radical expressions?
What will be an ideal response?
Answers will vary. A sample answer might be: One might make an error in attempting to rationalize a denominator by using something other than a conjugate expression.
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Solve the problem.Find the tangent to y = cot x at x = 
.
A. y = 2x + 1
B. y = -2x + 
+ 1
C. y = -2x + 
D. y = 2x - 
+ 1
Solve the problem.Six times a number, added to 3, is -51. Find the number.
A. -324 B. -9 C. 9 D. -54
Simplify the expression. Write the answer with only positive exponents. All variables are nonzero.(12x4y2)-1(4x3y)2
A. 
x2
B. 
x1
C. 
x2
D. 
x-1
A circular metal tank has a radius of 20 in. If a lid made for tank has the same radius, find the area of the lid in square feet. Use the rules for working with measurements.
A. The area is 34.9 ft 2. B. The area is 8.73 ft 2. C. The area is 1,260 ft 2. D. The area is 4.36 ft 2. E. The area is 17.5 ft 2.