Use the fact that the trigonometric functions are periodic to find the exact value of the expression. Do not use a calculator.cot 390°
A. - 
B. 
C. 
D. -
Answer: B
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The weight w of a certain animal satisfies an equation of change. At a specific weight, the equation of change indicates that 
is negative. What can you conclude about how the animal's weight can be expected to change?
?
A. The weight will stay the same. B. The animal will gain weight. C. The animal will lose weight. D. The weight is at a maximum value.
Give the coordinates of the points shown on the graph.
A. R = (-6, -6), S = (5, -6) B. R = (5, 4), S = (-6, -3) C. R = (-6, 5), S = (-3, -6) D. R = (-6, 5), S = (-6, -3)
Provide an appropriate response.Find the equation of the line that is perpendicular to the line 3y = 2x - 1 and passes through the point (-4, 2).
A. 2x - 3y = -14 B. x + 2y = 0 C. 3x + 2y = -8 D. 3x + 2y = -4
The height (in feet) of an object dropped off of a bridge can be modeled by the equation s(t)=-36t^2+144. How long will it be before the object hits the water below the bridge?
What will be an ideal response?