Choose which of the following descriptions apply to the number (more than one may apply): whole, integer, rational, irrational, real.0.9898...
A. Whole, rational, real
B. Irrational, real
C. Real
D. Rational, real
Answer: D
Mathematics
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Divide.12.8 ÷ 16
A. 18 B. 1.8 C. 8 D. 0.8
Mathematics
Find decimal notation.
A. 0.
B. -0.
C. 0.7
D. -0.7
Mathematics
Provide an appropriate response.A formula for the focal length of a lens isf = 
Calculate f (the focal length) for a = 18 cm and b = 10 cm. Round to the nearest tenth.
A. 9.0 cm B. 6.4 cm C. 5.0 cm D. 11.6 cm
Mathematics
Given that f(x) = sin x, g(x) = cos x, and h(x) = tan x, evaluate the given function. The point (x, 
), on the circle 
, also lies on the terminal side of an angle ? in standard position. The point 
, on the circle 
, also lies on the terminal side of an angle ? in quadrant IV. f(? - ?)
A. 
B. 
C. 
D. 
Mathematics