Express the number in decimal notation.8.1 × 105
A. 81,000
B. 8,100,000
C. 405
D. 810,000
Answer: D
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Solve.The time in hours it takes a satellite to complete a circular orbit about the earth varies directly as the radius (from the center of the earth) of the orbit and inversely as the orbital velocity. If a satellite completes an orbit 
above the earth in 
at a velocity of 
how long would it take a satellite to complete an orbit if it is circling 1,700 km above the earth at 
alt="" style="vertical-align: -4.0px;" /> (Assume the radius of the earth is 
A. 580 min
B. 120 min
C. 220 min
D. 190 min
Solve for the indicated variable.Solve for t.rm = t2 - mt
A. t = 
B. t = 
C. t = 
D. t = 
Graph the function and its inverse using the same set of axes. Use any method.f(x) = log x; f-1(x) = 10x
A. 
B. 
C. 
D. 
Factor the sum or difference of cubes.t3 + 216
A. (t - 6)(t2 + 6t + 36) B. (t + 6)(t2 - 6t + 36) C. (t - 216)(t2 - 1) D. (t + 6)(t2 + 36)