Use the properties of exponents to simplify the expression. Write with positive exponents.8x-2/5(x11/5 - 5x)
A. 8x-22/5 - 40x-2/5
B. 8x9/5 + 5x-2/5
C. 
- 
D. 8x9/5 - 40x3/5
Answer: D
Mathematics
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Decide which of the 5 properties of a commutative group (closure, identity, inverse, associative, commutative) hold for the given system.
A. None of them B. Closure, identity, inverse, and associative only C. Closure, identity, associative, and commutative only D. Closure only
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Multiply.(2y + 11)(3y2 - 2y - 8)
A. 6y3 - 4y2 - 16y + 11 B. 39y2 - 26y - 104 C. 6y3 + 37y2 + 38y + 88 D. 6y3 + 29y2 - 38y - 88
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Find the exact circumference of the circle.
A. 3.6? mi B. 3.6?2 mi C. 1.8?2 mi D. 1.8? mi
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Solve the equation in the complex number system.16x2 + 1 = 5x
A. {- 
- 
i, - 
+ 
i}
B. {- 
- 
i, 
+ 
i}
C. {
- 
i, 
+ 
i}
D. {
- 
i, - 
+ 
i}
Mathematics