Choose which of the following descriptions apply to the number (more than one may apply): whole, integer, rational, irrational, real.0.7878...
A. Whole, rational, real
B. Real
C. Irrational, real
D. Rational, real
Answer: D
Mathematics
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Use a calculator to find the approximate value of the composition. Round your answer to four decimal places. The expression may be undefined.cos (cos-1 (-0.9372))
A. -0.4686 B. 0.9372 C. 0.4686 D. -0.9372
Mathematics
Combine like terms.8ab + 2b + 5ab - 13
A. 13a + 15b - 13 B. 15ab - 13 C. 15ab2 - 13 D. 13ab + 2b - 13
Mathematics
If possible, find the matrix product.Given A = 
; and B = 
, find AB.
A. AB = 
B. AB = 
C. AB = 
D. AB = 
Mathematics
Express the given function H as a composition of two functions f and g such that H(x) = (f ? g)(x).H(x) = 
A. f(x) = 
, g(x) = x - 4
B. f(x) = 
, g(x) = - 
C. f(x) = 
, g(x) = x2 - 4
D. f(x) = 
, g(x) = x2 - 4
Mathematics