Determine whether matrix B is the inverse of matrix A by finding the product AB.A = 
, B = 
A. B = A-1
B. B ? A-1
Answer: A
Mathematics
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Solve the right triangle. If two sides are given, give angles in degrees and minutes.
A = 11° 14', c = 247 ftRound side lengths to two decimal places.
A. B = 79° 45'; a = 48.12 ft; b = 238.27 ft B. B = 78° 46'; a = 48.12 ft; b = 242.27 ft C. B = 78° 45'; a = 51.32 ft; b = 243.47 ft D. B = 78° 46'; a = 47.55 ft ; b = 241.38 ft
Mathematics
Perform the indicated operation and, if possible, simplify. Assume that all variables represent positive real numbers. 
+
A. 5x
+ y3
B. (5x + y9)
C. (5x + y3)
D. (5x3 + y3)
Mathematics
Use the square root property to find all real or imaginary solutions to the equation.x2 = 196
A. {±14} B. {14} C. {98} D. {±15}
Mathematics
Construct a truth table for the proposition.~p ? (~p ? s)
A. 
B. 
C. 
D. 
Mathematics