Convert to a logarithmic equation.73 = 343
A. 3 = log343 7
B. 343 = log7 3
C. 7 = log3 343
D. 3 = log7 343
Answer: D
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Solve the problem.For a hyperbolic mirror the two foci are 44 cm apart. The distance of the vertex from one focus is 6 cm and from the other focus is 38 cm. Position a coordinate system with the origin at the center of the hyperbola and with the foci on the y-axis. Find the equation of the hyperbola.
A. 
- 
= 1
B. 
- 
= 5
C. 
- 
= 1
D. 
- 
= 5
x? = x(0.1? 0.004x ? 0.001y) , y? = y (0.05 ? 0.001x ? 0.001y) , x (0) = 2, y (0) =1
For the systems of differential equations, use Euler’s method with ?x = 2 to plot the trajectory of x and y to plot the trajectory for 0 ? t ? 500.
Identify the radicand.xy2
A. xy2
B. 
C. x + 5
D. 
Write the standard form of the equation of the circle with radius r and center (h, k).r = 3; (h, k) = (9, -8)
A. (x - 9)2 + (y + 8)2 = 9 B. (x + 9)2 + (y - 8)2 = 9 C. (x + 9)2 + (y - 8)2 = 3 D. (x - 9)2 + (y + 8)2 = 3