Find the angle between the planes.3x + 3y + 4z = 6 and 4x + 5y + 2z = -2
A. 1.286
B. 1.108
C. 1.312
D. 0.463
Answer: D
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Solve the problem.In an election, each member ranks the candidates from first to third. The preference schedule below shows the results of the preliminary nonbinding ballots with candidates Robbins (R), Kaplan (K), and Simpson (S).
A second election is then held, which yields the following preference schedule:
If a run-off of the top two candidates is used to determine the winner, is Fairness Criterion 3 satisfied?
A. no B. yes
Find the derivative of the function.
?
?
A. 
B. ?
C. ?
D. ?
Use the MACRS depreciation rates table to solve the problem. Round to the nearest dollar.MACRS Depreciation Rates 
Respiratory Care, Inc. purchased new packaging equipment (5-year property) at a cost of $9730. Find the book value at the end of 4 years.
A. $2802 B. $3051 C. $3040 D. $1681
Establish the identity.
= tan(2?)
What will be an ideal response?