Provide an appropriate response.Which two of the following equations do not correctly state the relationship between distance, rate and time?(a) 
= r(b) dr = t(c) 
= d(d) 
= t
A. (a) and (c)
B. (b) and (d)
C. (a) and (d)
D. (b) and (c)
Answer: D
Mathematics
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Answer the question.Which number can serve as a common denominator for 
and 
?
A. 12 B. 48 C. 7 D. 14
Mathematics
Use the rules of exponents to simplify the expression. Write the answer with positive exponents. Assume that all variables represent positive real numbers.
A. 
B. x34/5
C. 
D. x22/5
Mathematics
Factor the polynomial by grouping.20x2 - 15x + 12x - 9
A. (5x + 3)(4x - 3) B. (20x + 3)(x - 3) C. (5x - 3)(4x + 3) D. (20x - 3)(x + 3)
Mathematics
What number should be added to complete the square of the expression?x2 - 
x
A. 
B. - 
C. - 
D. 
Mathematics