Complete the identity.sin2 ? + tan2 ? + cos2 ? = ?
A. sec2 ?
B. cos3 ?
C. tan2 ?
D. sin ?
Answer: A
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Use the compound interest formulas A = P
nt and 
to solve.Find the accumulated value of an investment of $2,000 at 7% compounded continuously for 3 years.
A. $2,450.09 B. $2,467.36 C. $2,420.00 D. $2,567.36
Solve the equation.
+ 9 = x
A. x = 9 B. x = 18 C. x = 18, x = 5 D. No solution
Perform the indicated operation. Give answer in standard form.(9 + 9i)(7 + 2i)
A. 45 - 81i B. 81 + 45i C. 45 + 81i D. 18i2 + 81i + 63
Suppose a country's population at any time t grows in accordance with the rule
?
?
where P denotes the population at any time t,k is a positive constant reflecting the natural growth rate of the population, andi is a constant giving the (constant) rate of immigration into the country. If the total population of the country at time t =0 is P?0, find an expression for the population at any time t.
What will be an ideal response?