Write the exponential equation as an equation involving a logarithm.2-2 = 
A. log-2
= 2
B. log2-2 = 
C. log2
= -2
D. log1/42 = -2
Answer: C
Mathematics
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A. (9 + t)(81 - 9t + t2) B. (9 + t)(81 - t2) C. (9 - t)(81 + 9t + t2) D. (9 - t)(81 + t2)
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Solve the problem.Ron takes two hr more time than Paul to mow the lawn. Working together they can mow the lawn in 
. How long does it take each of them working alone?
A. Paul: 10 hr; Ron: 12 hr B. Paul: 9.1 hr; Ron: 11.1 hr C. Paul: 8 hr; Ron: 10 hr D. Paul: 8.3 hr; Ron: 10.3 hr
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Find the exact value of the expression.tan-1 (-1)
A. - 
B. 
C. 
D. 
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Find the product using the FOIL method.(x - 10y)(x - 2y)
A. x2 - 12xy - 12y2 B. x2 - 15xy + 20y2 C. x - 12xy + 20y D. x2 - 12xy + 20y2
Mathematics