Solve the equation.log7 x2 = 4
A. {49, -49}
B. {2,401}
C. {2
, -2
}
D. {128}
Answer: A
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Even with most of the problem missing, it is possible to tell whether a suggested answer is reasonable. Determine whether the answer given is reasonable. If it is unreasonable, move the decimal point or insert a decimal point to make the answer reasonable.How much does Anne's father weigh? 15.2 pounds
A. Unreasonable, should be 152 pounds B. Unreasonable, should be 1.52 pounds C. Reasonable D. Unreasonable, should be 1520 pounds
Solve the equation for y in terms of x.ln y + 2.1972 = 8 ln x
A. y = x8 - 9
B. y = x8 - 2.1972
C. y = 
D. y = 
The function f is one-to-one. Find its inverse.f(x) = 
A. f-1(x) = (x - 7)2
B. f-1(x) = x2 - 7, x ? 0
C. f-1(x) = x2 + 7, x ? 0
D. f-1(x) = 
Determine whether the two lines are parallel, perpendicular, or neither parallel nor perpendicular. 3x - 4y = -10 8x + 6y = 4
A. Parallel B. Perpendicular C. Neither