Use the product rule and positive exponents to simplify the expression.3a7 ? 4a-3
A. 12a10
B. 12a4
C. 12a21
D. 7a4
Answer: B
Mathematics
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Solve the problem.Starting at point A, a ship sails 35 km on a bearing of 256°, then turns and sails 
on a bearing of 329°. Find the distance of the ship from point A to the nearest kilometer.
A. 106 km B. 63 km C. 78 km D. 28 km
Mathematics
Convert to an exponential equation.log4 
= -2
A. 
2 = 4
B. 4-2 = 
C. 416 = 2
D. 24 = 
Mathematics
Simplify the complex rational expression using Method I or Method II.
A. 
B. x + 8
C. 
D. x - 8
Mathematics
Find the least common denominator.
, 
, 
A. n2 + 64 B. 64n2 C. n + 8 D. n(8 + n)(8 - n)
Mathematics