Write the expression using exponents.(-8)(-8)(-8)(-8)(-8)(-8)(-8)
A. (-8)7
B. 86
C. 87
D. (-8)6
Answer: A
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x? = x(0.06 ? 0.007x ? 0.0045y) , y? = y (0.03 ? 0.002x ? 0.0012y) , x (0) = 2, y (0) = 4
For the systems of differential equation, use Euler’s method with ?x = 2 to plot the trajectory of x and y to plot the trajectory for 0 ? t ? 500 .
Solve the problem.A formula for calculating the distance, d, one can see from an airplane to the horizon on a clear day is 
where x is the altitude of the plane in feet and d is given in miles. How far can one see in a plane flying at 23,000 feet? Round your answer to the nearest tenth mile, if necessary.
A. 167.5 mi B. 1403 mi C. 14,030 mi D. 185.0 mi
Rewrite without rational exponents, and simplify, if possible.(mn)1/8
A. 
B. 
C. (mn)-8
D. 
Determine the average rate of change for the function.h(x) = -4x + 10
A. 4 B. -10 C. -4 D. 10