Use a calculator to find the function value to four decimal places.sin (72.5°)
A. 3.1716
B. -0.2410
C. 0.3007
D. 0.9537
Answer: D
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Solve the problem.The system of equations 
= (-5 + 6y)x and 
= (-5 + x)y describes the growth rates of two symbiotic (dependent) species of animals (such as the rhinoceros and a type of bird which eats insects from its back). Find the equilibrium points.
A. (x, y) = 
B. (x, y) = (0, 0) and (x, y) = 
C. (x, y) = (0, 0) and (x, y) = 
D. (x, y) = (0, 0) and (x, y) = 
Find the function.Find the function that is finally graphed after the following transformations are applied to the graph of 
The graph is shifted up 8 units, reflected about the x-axis, and finally shifted left 7 units.
A. y = -
- 8
B. y = 
+ 8
C. y = -
+ 8
D. y = -
- 8
Write a slope-intercept equation for a line with the given characteristics.Passes through (3, -9) and (0, 5)
A. y = - 
x + 5
B. y = 
x + 5
C. y = - 
x + 5
D. y = 
x + 5
Find A-1 then use it to find the solution to the system.
A. A-1 = 
, x = -42, y = -140
B. A-1 = 
; x = -105, y = 70
C. A-1 = 
; x = 21, y = -70
D. A-1 = 
; x = -21, y = 10