Find a value for the constant a so that f(x) = ax2 models the data. 
A. a = 0.3
B. a = 3
C. a = 1
D. a = 0.1
Answer: D
Mathematics
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Solve the problem.A retail store buys 235 VCRs from a distributor at a cost of $220 each plus an overhead charge of $20 per order. The retail markup is 30% on the total cost. Find the profit on the sale of one VCR.
A. $65.97 B. $6603.00 C. $66.00 D. $66.03
Mathematics
Find the most general antiderivative.
dx
A. -3 cot x + C
B. -3 tan x + C
C. 
+ C
D. 3 cot x + C
Mathematics
Evaluate the expression.3 + 
A. 
B. 
C. 
D. 
Mathematics
Solve.Find the simple interest when: Principal = $270, Rate = 9%, Time = 4 years.
A. $24.30 B. $243.00 C. $972.00 D. $97.20
Mathematics