The circle or ellipse shown in the calculator-generated graph was created using function mode with a square viewing window. What are the two functions y1 and y2 that were used to obtain the graph whose equation is given?x2 + y2 = 25
A. 
, 
B. 
, 
C. 
, 
D. y1 = 
, y2 = - 
Answer: A
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Find the unknowns on the right side of the partial fraction decomposition.
= 
+ 
A. A = - 
, B = - 
, C = 
B. A = 
, B = - 
, C = 
C. A = - 
, B = 
, C = 
D. A = 
, B = 
, C = - 
Solve.The longitudinal shrinkage SL (in mm) that occurs during welding is given by the formula 
where I is the welding current in amperes, L is the length of the weld in millimeters, and t is the thickness of the plate in millimeters. Suppose an electrode is welded at 175 amp, the length of the weld is 310 mm, and the plate is 10 mm thick. Calculate the longitudinal shrinkage that occurs during welding.
A. 0.115 mm B. 0.035 mm C. 0.235 mm D. 0.165 mm
Find the exact value of the expression.sin 25° cos 35° + cos 25° sin 35°
A. 
B. 
C. 
D. 
Write the phrase as a mathematical expression. Use x as the variable.409 divided by some number
A. 409x
B. 409 + x
C. 409 - x
D. 