State the property of real numbers that is being illustrated.(1 + 9) + 5 = (9 + 1) + 5
A. commutative property of addition
B. associative property of addition
C. additive inverse property
D. distributive property
Answer: A
Mathematics
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Multiply the rational expressions.
? 
A. - 3
B. 
C. 
D. 
Mathematics
Solve the formula for the specified variable.S = 2?rh + 2?r2 for h
A. h = 2?(S - r)
B. h = 
C. h = S - r
D. h = 
- 1
Mathematics
Represent the sets on a number line.{x|x < -2}
A. 
B. 
C. 
D. 
Mathematics
Licensing and permit requirements are two examples of which type of entry barrier?
A. government policy B. differentiation C. switching costs D. economies of scale
Mathematics