Factor.x2 - 1.6x + 0.64
A. Prime
B. (x + 0.8)2
C. (x - 0.8)2
D. (x + 0.8)(x - 0.8)
Answer: C
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Find Dxy.y = sinh 5x coth x
A. 5 cosh 5x coth x - sinh 5x csch2x B. 5 cosh 5x coth x - sinh 5x csch x coth x C. 5 cosh 5x coth 5x - sinh 5x csch25x D. -5 cosh 5x csch2x
Evaluate the integral.
A. 8i - 6j + 3k
B. 4i - 3j - 
k
C. 4i + 3j - 
k
D. 8i + 6j - 3k
Solve the problem.A radio transmission tower is 170 feet tall. How long should a guy wire be if it is to be attached 14 feet from the top and is to make an angle of 35° with the ground? Give your answer to the nearest tenth of a foot.
A. 190.4 feet B. 272.0 feet C. 296.4 feet D. 207.5 feet
Write the sentence as an equation or inequality. Use x to represent any unknown number.Twice a number is 11.
A. x = 22
B. 
x = 11
C. x + 2 = 11
D. 2x = 11