Graph the numbers on the real number line.x ? 0
A. 
B. 
C. 
D. 
Answer: B
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Find the work done by F over the curve in the direction of increasing t.F = - 
i + 
j + 
k; C: r(t) = 
i + 
j + 7tk, 0 ? t ? 
A. W = 
+ 
?2
B. W = 
+ 
?2
C. W = 
+ 
?2
D. W = 
+ 
?2
Factor the trinomial, or state that the trinomial is prime. Check your factorization using FOIL multiplication.x2 - x - 45
A. (x + 5)(x - 9) B. (x - 5)(x + 9) C. (x - 45)(x + 1) D. prime
Solve the problem using the rule of 78s.A fisherman buys a new boat for $45,000. He makes a down payment of $17,000 and finances the balance at 8% APR over 60 months. Before making the 45th payment, the fisherman decides to pay the remaining balance on the loan. How much interest will the fisherman save?
A. $397.69 B. $359.78 C. $639.15 D. $369.85
At what points is the given function continuous?f(x, y, z) = 
A. All (x, y, z) ? ± (6, -5, -8) B. All (x, y, z) ? (0, 0, 0) C. All (x, y, z) D. All (x, y, z) ? (6, -5, -8)