Let A = {1, 3, 5, 7}; B = {5, 6, 7, 8}; C = {5, 8}; 
and 
Determine whether the given statement is true or false.A ? {7, 5, 3, 1}
A. True
B. False
Answer: B
Mathematics
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Find an upper bound for the magnitude |E| of the error in the approximation f(x, y) ? L(x, y) at the given point over the given region R.
at 
; R: |x - 1| ? 0.1, |y + 2| ? 0.1, |z - 3| ? 0.1
A. |E| ? 0.63 B. |E| ? 0.84 C. |E| ? 0.42 D. |E| ? 0.56
Mathematics
Complete the identity.
+ 
= ?
A. -2 tan2 x B. sin x tan x C. 1 + cot x D. sec x csc x
Mathematics
Write the fraction in simplest form.
A. 
B. 
C. 
D. 
Mathematics
Solve. Use ? ? 3.14 when necessary.A 16-foot ladder is leaning against a house with the base of the ladder 3 feet from the house. How high up the house does the ladder reach? Round to the nearest tenth foot.
A. 13 feet B. 15.7 feet C. 16.3 feet D. 16 feet
Mathematics