Solve the logarithmic equation algebraically. Approximate the result to three decimal places.
?
?
A. 8
B. 6
C. -1
D. 7
E. 9
Answer: D
Mathematics
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Evaluate the validity of the chain of conditionals.Premise: If I take a shower, I use soap.Premise: If I use soap, my skin becomes dry.Conclusion: If I take a shower, my skin becomes dry.
A. Valid B. Invalid
Mathematics
Perform the indicated operation. Write the result in scientific notation.
A. 40 × 1019 B. 40 × 1018 C. 9 × 1018 D. 9 × 1019
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Find the center and radius of the sphere.2x2 + 2y2 + 2z2 - x + y - z = 9
A. C
, a =
B. C
, a = 
C. C
, a = 
D. C
, a = 
Mathematics
Find the exact value of y, or state that y is undefined.y = sin-1 (-5)
A. ? B. -5 C. 0 D. undefined
Mathematics