Use rational exponents to simplify the radical. If rational exponents appear after simplifying, write the answer in radical notation.
? 
A. 
B. x
C. 
D. 
Answer: C
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Solve the problem.The position of a particle moving along a coordinate line is s = 
with s in meters and t in seconds. Find the particle's acceleration at 
A. - 
m/sec2
B. - 
m/sec2
C. 
m/sec2
D. 
m/sec2
Solve the problem.A square playground has a white line drawn through its diagonal. This creates two triangles whose angle measures are 45°, 45°, and 90°. If the sides of the playground are 73 feet, use trigonometric functions to find the length, x, of the diagonal. 
A. 51.6 ft B. 126.4 ft C. 103.2 ft D. 42.1 ft
Find the exact value of the indicated trigonometric function of ?, if ? is an angle in standard position whose terminal side contains the given point.(
, - 
); find sec ?.
A. - 
B. 
C. 
D. - 
Find the exact value of the expression. Do not use a calculator.sin2 60° - cos2 45° - sin2 30°
A. 
B. 3
C. 0
D. - 