Solve.The difference of the reciprocals of two consecutive integers is 1/90. Find the integers.
A. 8 and 9 or -8 and -9
B. 45 and 46 or -45 and -46
C. 10 and 11 or -10 and -11
D. 9 and 10 or -9 and -10
Answer: D
Mathematics
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Plot the Lissajous figure.x = sin t, y = sin 5t
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.On a flywheel with a 79.9-mm radius, how long is an arc subtended by a central angle of 4.07 rad?
A. 2,043 mm B. 12,991 mm C. 325 mm D. 650 mm
Mathematics
Simplify.
÷ 
? 
A. 
B. 3
C. 
D. 3
Mathematics
Graph the function using its vertex, axis of symmetry, and intercepts.f(x) = x2 - 2x + 1 
A. vertex (1, 0)
intercepts (0, 1), (1, 0)
B. vertex (-1, 1)
intercept (0, 2)
C. vertex (1, 1)
intercept (0, 2)
D. vertex (-1, 0)
intercepts (0, 1), (-1, 0)
Mathematics