The rate of decomposition of a certain chemical substance is directly proportional to the amount present at any time t. If d0 gr of the chemical are present at time t = 0, find an expression for the amount present d(t) at any time t.
What will be an ideal response?
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Find the value of df-1/dx at x = f(a).f(x) = 
x + 9, a = 3
A. 
B. 9
C. 
D. 4
Solve.If an amount of money P is invested at r% annual interest compounded n times per year, then the total value V of the money after t years is given by V = P
nt. Find the value of an ititial investment of $15,000 after four years if (a) it is invested at 1% annual interest compounded yearly.(b) it is invested at 6% annual interest compounded quarterly.(c) it is invested at 2% annual interest compounded monthly.(d) it is invested at 4% annual interest compounded daily (use n = 360).
A. (a) $14,816.92, (b) $18,650.02, (c) $15,733.28, (d) $16,781.88 B. (a) $15,622.98, (b) $19,194.76, (c) $16,396.89, (d) $17,635.72 C. (a) $15,609.06, (b) $19,034.78, (c) $16,248.22, (d) $17,602.51 D. (a) $16,637.,92, (b) $20,588.01, (c) $16,328.46, (d) $17,629.76
Solve for x using an equivalent exponential expression.Find the volume of a rectangular box 3 feet by 7.3 feet by 4 feet.
A. 48 cu ft B. 213.16 cu ft C. 65.7 cu ft D. 87.6 cu ft
Solve the problem.True or false, a system of linear equations containing more equations than variables is always inconsistent.
A. True B. False