Provide an appropriate response.The current population of a threatened animal species is 1 million, but it is declining with a half-life of 
How many animals will be left in 80 years?
A. 22,965 animals
B. 46 animals
C. 45,929 animals
D. 230 animals
Answer: C
Mathematics
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Indicate the period and the range of the given function.y = 2 sec 
A. P = 2?; Range: 
? 2
B. P = 12; Range: 
? 2
C. P = 12?; Range: 
? 2
D. P = ?; Range: 
? 2
Mathematics
Find the vertex, the focus, and the directrix of the parabola.x2 - 8x - 8y + 8 = 0
A. V: 
; F: (4, 1), D: y = - 
B. V: (- 4, - 1); F: (4, 1); D: y = -3
C. V: 
; F: (4, -3); D: y = 1
D. V: 
; F: (4, 7); D: y = 9
Mathematics
Multiply. Write the answer in lowest terms. 
? 
A. 
B. - 
C. 
D. - 
Mathematics
Write a formula for the general term, or nth term, for the given sequence.
, 
, 
, 
, 
, . . .
A. an = 
B. an = 
C. an = 
D. an = 
Mathematics