Complete the factoring.x2 + 11x + 28 = (x + 7)( )
A. x2 + 4
B. x + 4
C. x + 21
D. x - 18
Answer: B
Mathematics
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Solve.How long will it take for the population of a certain country to double if its annual growth rate is 3.4%? Round to the nearest year. Use the exponential growth model P(t) = P0ekt.
A. 1 yr B. 59 yr C. 20 yr D. 9 yr
Mathematics
Find the area of the figure. Use 3.14 for ?.
A. 476.1 cm2 B. 605.625 cm2 C. 517.3125 cm2 D. Not enough data
Mathematics
Solve the problem.A man earned $3000 the first year he worked. If he received a raise of $500 at the end of each year, what was his salary during the 15th year?
A. $7000 B. $10,000 C. $10,500 D. None of these
Mathematics
Determine whether the graph of the function is symmetric about the y-axis, the origin, or neither of these.f(x) = 
A. y-axis B. Origin C. Neither
Mathematics