Solve the equation.(6.2)2 = (13.3)2 + (15.5)2 - 2(13.3)(15.5)cos ? for 0° < ? < 90°
A. 58.1
B. 25.3°
C. 21.3°
D. 23.3°
Answer: D
Mathematics
You might also like to view...
Solve by the method of elimination by substitution.x + 8y = 0x - 8y = 80
A. x = 40, y = 5 B. x = 8, y = -1 C. x = 40, y = -5 D. x = -5, y = 40
Mathematics
Use Cramer's rule to solve the linear system. If D = 0, use another method to determine the solution set. 2x - 5y - z = -9 x - 3y - 4z = -34-9x + y + z = -52
A. {(7, 3, 8)} B. {(3, 8, 3)} C. {(8, 1, 8)} D. {(7, -3, -8)}
Mathematics
Solve the problem.Among all pairs of numbers whose difference is 44, find a pair whose product is as small as possible.
A. 66 and 22 B. -66 and -22 C. 22 and 22 D. -22 and 22
Mathematics
Find the exact value of the logarithmic expression.log41
A. 1
B. 0
C. 
D. 4
Mathematics