x? = x(0.1? 0.07x ? 0.005y) , y? = y (0.05 ? 0.002x ? 0.0017y) , x (0) = 3, y (0) = 7
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 .
x (500) ?1.02935, y (500) ? 29.4118
Mathematics
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Sketch an abacus to represent the given number.55,555
A. 
B. 
Mathematics
Find all points where the function is discontinuous.
A. None B. x = 2 C. x = -2 D. x = -2, x = 2
Mathematics
Use the graph to evaluate the expression.Find (f + g)(-5) and (f - g)(-4).
A. (f + g)(-5) = 5; (f - g)(-4) = 1 B. (f + g)(-5) = 5; (f - g)(-4) = -3 C. (f + g)(-5) = -5; (f - g)(-4) = -21 D. (f + g)(-5) = 55; (f - g)(-4) = 53
Mathematics
Solve the equation.
- 
= 
A. {-10} B. {10} C. {50} D. ?
Mathematics