Write an equation that expresses the relationship. Use k for the constant of proportionality.r varies directly as a and inversely as the difference between s and t.
A. r = ka(s - t)
B. r = 
C. r = 
D. r = 
Answer: C
Mathematics
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Write the decimal as a fraction or mixed number in lowest terms.14.2
A. 14
B. 1
C. 
D. 14
Mathematics
Provide an appropriate response.Define f(0, 0) in a way that extends f(x, y) = 
to be continuous at the origin.
A. f(0, 0) = 0 B. f(0, 0) = 2 C. f(0, 0) = 8 D. f(0, 0) = 16
Mathematics
Simplify the expression.
+ 
A. 
B. 
C. 
D. 
Mathematics
Solve the problem. Round your answer to the nearest tenth.If $2000 is invested in an account that pays interest compounded continuously, how long will it take to grow to $6000 at 9%?
A. 12.2 years B. 9.9 years C. 15.1 years D. 8.0 years
Mathematics