Write an equation that expresses the relationship. Use k for the constant of proportionality.x varies jointly as y and z and inversely as the square root of a.
A. x = 
B. x = 
C. x = 
D. x = 
Answer: A
Mathematics
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Use the sum-of-two-cubes or the difference-of-two-cubes pattern to factor the following.1 - 27a 3
A. ( 1 - 3a )( 1 - 6a + 9a 2 ) B. ( 1 - 3a )( 1 - 3a + 9a 2 ) C. ( 1 - 3a )( 1 + 3a + 9a 2 ) D. ( 1 + 3a )( 1 + 3a + 9a 2 ) E. ( 1 - 3a )( 1 + 6a + 9a 2 )
Mathematics
Evaluate.53 + 40
A. 15 B. 125 C. 27 D. 126
Mathematics
Find the least common multiple for the set of numbers.2 and 7
A. 9 B. 28 C. 14 D. 1
Mathematics
Match the graph with its correct equation (m and b are constants).
A. y = mx + b, m < 0 and b > 0 B. y = mx + b, m < 1 and b > 0 C. y = mx, m< 0 D. y = mx + b, m > 0 and b > 0
Mathematics