a. The alligator, at one lime an endangered species, was the subject of a protection program. The formula P = − 10 x 2 + 475 x + 3500 models the alligator population. P, after x years of the protection program, where 0 ≤ x ≤ 12 . How long did it take the population to reach 5990 alligators? b. The graph of the formula modeling the alligator population is shown below. Identify your solution from part (a) as a point on the graph.
a. The alligator, at one lime an endangered species, was the subject of a protection program. The formula P = − 10 x 2 + 475 x + 3500 models the alligator population. P, after x years of the protection program, where 0 ≤ x ≤ 12 . How long did it take the population to reach 5990 alligators? b. The graph of the formula modeling the alligator population is shown below. Identify your solution from part (a) as a point on the graph.
a. The alligator, at one lime an endangered species, was the subject of a protection program. The formula
P
=
−
10
x
2
+
475
x
+
3500
models the alligator population. P, after x years of the protection program, where
0
≤
x
≤
12
. How long did it take the population to reach 5990 alligators?
b. The graph of the formula modeling the alligator population is shown below. Identify your solution from part (a) as a point on the graph.
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Determine if the values of the variables listed are solutions of the system of equations.
2x - y = 4
3x+5y= - 6
x=1, y = 2; (1,-2)
Is (1, 2) a solution of the system of equations?
L
No
Yes
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10. A sound wave's amplitude can be modeled by the function y = −7 sin ((x-1) + 4). Within the interval 0 < x < 12, when does the function have an amplitude
of 4? (Select all that apply.)
9.522 seconds
4.199 seconds
0.522 seconds
1.199 seconds
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