Solve the equation for the specified variable.d = rt; solve for t
A. t = 
B. t = 
C. t = dr
D. t = d - r
Answer: A
Mathematics
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Use the appropriate sum or difference identity to write the given expression as a function of x alone.cos (270° - x)
A. - sin x B. cos x C. sin x D. - cos x
Mathematics
Solve the problem.Students at East Central High School earned $548 selling candles. They want to make $4790 for a club trip. What percent of their goal has been reached? Round to the nearest tenth of a percent, if necessary.
A. 8.7% B. 87% C. 1.1% D. 11.4%
Mathematics
Graph the parabola or ellipse. Include the directrix that corresponds to the focus at the origin.r = 
A. 
B. 
C. 
D. 
Mathematics
Find an expression for the nth term of the arithmetic sequence.
, 
, 
, 
, 
, . . .
A. an = 
B. an = 
C. an = 
D. an = 
Mathematics