Provide an appropriate response.Solve the equation: 
x = 10
A. x = 5
B. x = -5
C. x = 20
D. x = -20
Answer: C
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Solve the problem.For what values of x can we replace cos x by 
with an error of magnitude no greater than 
A. -0.376 ? x ? 0.376 B. -0.311 ? x ? 0.311 C. -0.589 ? x ? 0.589 D. -0.493 ? x ? 0.493
Find the minimum-cost spanning tree for the graph.
A. 
B. 
C. 
D. 
Find the safe ladder position for a ladder with length of 16 feet. Use a safe-ladder ratio, height to base, of 4 to 1. Give your answers first in feet rounded to the nearest hundredth, and then in feet and inches rounded to the nearest inch.
A) Base 4.88 ft 4 ft 11 inches Height 15.52 ft 15 ft 6 inches B) Base 3.88 ft 3 ft 11 inches Height 14.52 ft 14 ft 6 inches C) Base 3.88 ft 3 ft 11 inches Height 15.52 ft 15 ft 6 inches D) Base 3.88 ft 3 ft 12 inches Height 15.52 ft 15 ft 6 inches E) Base 3.88 ft 3 ft 11 inches Height 15.52 ft 15 ft 7 inches
For the given function, find all intervals ofx-values where the function is decreasing.
?
A. 
B. 
C. 
or 
D. 
E. 