Determine whether the given value is a solution to the given equation.Is 25.8 a solution to 38.2 - z = 12.4?
A. Yes
B. No
Answer: A
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The vector r(t) is the position vector of a particle at time t. Find the angle between the velocity and the acceleration vectors at time t = 0.r(t) = ti + (
t + 
t2)k
A. 0
B. 
C. 
D. ?
Solve the problem.The Mathematics Department is holding an election for department chair. Each member ranks the candidates from first to third. The preference table below shows the results of the ballots with candidates Clark (C), Jones (J), and Smith (S). 
Determine the winner using the plurality method and if the winner received a majority of first place votes.
A. Clark; Yes B. Jones; No C. Clark; No D. Smith; Yes
Which of the following mathematical equations is used to calculate the degree of operating leverage (DOL)? (? = change)
A. DOL = % ? in net operating income (NOI)/% ? in sales B. DOL = % ? in sales/% ? in earnings before taxes (EBT) C. DOL = % ? in earnings before interest and taxes (EBIT)/% ? in earnings per share (EPS) D. DOL = % ? in sales/% ? in earnings per share (EPS) E. DOL = % ? in earnings per share (EPS)/% ? in earnings before taxes (EBT)
Simplify the expression by combining like terms, if possible.-3(10r + 2) + 5(2r + 3)
A. -20r + 9 B. 7r - 1 C. -36r D. -20r + 2