Graph the polar equation.r sin ? = 1
A. 
B. 
C. 
D. 
Answer: B
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Identify all of the symmetries in the following figure.
A. It has reflection symmetries; it can be reflected across a vertical line through its center, a horizontal line through its center, or either of its diagonals, and its appearance remains the same. It also has rotation symmetries; it can be rotated through 90°, 180°, or 270°, and its appearance remains the same. B. It has rotation symmetries; it can be rotated through 90°, 180°, or 270°, and its appearance remains the same. C. It has reflection symmetries; it can be reflected across a vertical line through its center, a horizontal line through its center, or either of its diagonals, and its appearance remains the same. D. None of these.
Solve the problem.The Redlich-Kwong equation provides an approximate model for the behavior of real gases. The equation is P(V, T) = 
- 
, where P is pressure, V is volume, T is Kelvin temperature, and a,b , and R are constants. Find the partial derivative of the function with respect to each variable.
A. PV = 
+ 
; PT = 
- 
B. PV = 
- 
; PT = 
+ 
C. PV = 
- 
; PT = 
+ 
D. PV = 
+ 
; PT = - 
+ 
Solve the problem.A school purchased 9 printers at a total cost of $2961. Find the cost per printer.
A. $2961 B. $279 C. $329 D. $229
Determine a window which gives a complete graph of the polynomial function.f(x) = 0.62x3 - 5x2 + 11x + 8
A. [-10, 10] by [-10, 10] B. [-30, 80] by [-8000, 4000] C. [-10, 5] by [-300, 300] D. [-5, 10] by [-100, 300]