Convert the repeating decimal to a fraction.0.
A.
B.
C.
D.
Answer: C
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Solve the problem.The sound produced by touching each button on a touch-tone phone is described by y = sin 2?lt + sin 2?htwhere l and h are the low and high frequencies (cycles per second) in the figure shown.Describe the sound emitted by touching the 0 key as a product of sines and cosines.
A. y = 2 sin(536?t) cos(2418?t) B. y = 2 sin(395?t) cos(2277?t) C. y = 2 sin(2418?t) cos(536?t) D. y = 2 sin(2277?t) cos(395?t)
Expand.(1 - )4 - (1 +
)4
A. -32
B. -7
C. -55
D. -28
Find a polynomial of degree 3 that has zeros 1, -2, and 3 and in which the coefficient of x² is -5.
What will be an ideal response?
Assume that the cities lie on the same north-south line and that the radius of the earth is 6400 km. Find the distance between City E, 53° N and City F, 55° S. (Round to the nearest kilometer.)
A. 12,064 km B. 12,072 km C. 215 km D. 223 km