Determine if matrix A is invertible.A = 
A. Invertible
B. Not invertible
Answer: A
Mathematics
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Give a verbal description of the subset of real numbers represented by the following interval, and sketch the subset on the real number line. ? [3, ?) ?
A. [3, ?) denotes the set of all real numbers less than 3.
B. [3, ?) denotes the set of all real numbers less than or equal to 3.
C. [3, ?) denotes the set of all real numbers greater than 3.
D. [3, ?) denotes the set of all real numbers equal to 3.
E. [3, ?) denotes the set of all real numbers greater than or equal to 3.
Mathematics
Find the curvature of the curve r(t).r(t) = (7 + 7 cos 6t) i - (1 + 7 sin 6t)j + 9k
A. ? = 
B. ? = 
C. ? = 7
D. ? = 
Mathematics
Find the domain and the range for the function.
A. D: (-?, 4], R: [0, ?) B. D: [0, ?), R: (-?, 4] C. D: (-?, ?), R: [0, ?) D. D: (-?, 4], R: [4, ?)
Mathematics
Find the complement of the angle.34.7°
A. 56.7° B. 145.3° C. 90° D. 55.3°
Mathematics