Find the root. Assume that all variables represent positive numbers.
A. 5x8 y12
B. -5x8 y12
C. 25x8 y12
D. -5x12 y18
Answer: B
Mathematics
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Find the derivative of y.y = ln(sech (9x + 6))
A. tanh (9x + 6)
B. -tanh (9x + 6)
C. 
D. -9 tanh (9x + 6)
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What is the fact family that contains the equality?2 + 9 = 11
What will be an ideal response?
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Write the numeral in base ten.42twelve
A. 92 B. 29 C. 50 D. 70
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Solve the Problems.
A company invests equal amounts of money into two investments. One pays 7% and the other pays 8%. After one year the interest earned on the two investments is $3600. How much was invested in each?
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