The U.S. population is approximated by the function 
, where P(t) is measured in millions of people and t is measured in 30-year intervals, with t = 0 corresponding to 1930. What is the expected population of the United States in 2020 (t = 3)? Round your answer to one decimal place.
?
__________ million
Fill in the blank(s) with the appropriate word(s).
370.1
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Find the length of the third side of the right triangle. Assume that c represents the length of the hypotenuse. Give an exact answer and, if appropriate, an approximation to three decimal places.a = 1, b = 7
A. c = 
; c ? 2.828
B. c = 
; c ? 6.928
C. c = 8
D. c = 
; c ? 7.071
Find the derivative of the function.
?
What will be an ideal response?
Solve the problem.A summer camp wants to hire counselors and aides to fill its staffing needs at minimum cost. The average monthly salary of a counselor is $2400 and the average monthly salary of an aide is $1100. The camp can accommodate up to 35 staff members and needs at least 20 to run properly. They must have at least 10 aides, and may have up to 3 aides for every 2 counselors. How many counselors and how many aides should the camp hire to minimize cost?
A. 8 counselors and 12 aides B. 13 counselors and 16 aides C. 13 counselors and 17 aides D. 19 counselors and 23 aides
Identify the degree of the polynomial.-4a4 - 16a2 + 8a + 5a6
A. 4 B. 6 C. 12 D. 13