An expression that occurs in calculus is given. Write the expression as a single quotient in which only positive exponents and/or radicals appear.(x2 - 1)1/2 ? 
(2x + 5)1/2 ? 2 + (2x + 5)3/2 ? 
(x2 - 1)-1/2 ? 2x
A. 
B. (x2 - 1)1/2 (2x + 5)-1/2(5x2 + 5x - 3)
C. (x2 - 1)1/2 (2x + 5)1/2(5x2 + 5x - 3)
D. 
Answer: D
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Solve. Round your results to four decimal places.Use the Euler method with dx = 0.2 to estimate y(3) if y' = -y/x and y(2) = 2. What is the exact value of 
A. y ? 1.1579, exact value is 2.0000 B. y ? 1.2857, exact value is 1.0000 C. y ? 0.7368, exact value is 4.0000 D. y ? 0.5263, exact value is 3.0000
Provide an appropriate response. Solve the following quadratic using any method: 25x2 = 81.
A. x = 
B.
x = 1.8
C.
x = -1.8, 1.8
D. x =
, -
Express the statement as an equation involving the indicated variables.The surface area S of a cube is 6 times the square of the length x of a side.
A. S = 6x2 B. S = x2 C. S = 6 + x2 D. S = 6x
Determine whether the statement is true or false. ? If two sets are equivalent, then they are countable. ?
A. False B. True