Express as a difference of logarithms.log8 
A. log8 13 - log8 11
B. log4 13 - log4 11
C. log8 13 ÷ log8 11
D. log8 11 - log8 13
Answer: A
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Identify the equation as an identity, contradiction, or conditional equation.7x + 6(3x - 4) = 5 - 4x
A. contradiction B. identity C. conditional equation
Solve.A balloon is secured to rope that is staked to the ground. A breeze blows the balloon so that the rope is taut while the balloon is directly above a flag pole that is 30 feet from where the rope is staked down. Find the altitude of the balloon if the rope is 80 feet long. Give your answer as a simplified radical.
A. 5
ft
B. 10
ft
C. 5
ft
D. 10
ft
Find the zero of the linear function.f(x) = 20 - x
A. 0
B. 20
C. 
D. -20
Determine whether or not the given function is an exponential function.y = x5
A. exponential B. not exponential