Use a distributive property to write an equivalent expression.-5z - 5z - 2z
A. -12z2
B. -12z
C. 12z
D. 12z2
Answer: B
Mathematics
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Solve the problem. Round to the nearest hundredth.What percent of 101 is 11.72?
A. 861.77% B. 0.09% C. 0.12% D. 11.60%
Mathematics
Solve the problem.The loudness of a sound can be approximated by the formula d = 10 log10
, where d is the number of decibels. The higher the value of d, the louder the sound. Find the number of decibels when 
and 
A. 10,000 decibels B. 4 decibels C. 14 decibels D. 40 decibels
Mathematics
Solve the equation using the quadratic formula. Simplify irrational solutions, if possible.x2 + 8x - 5 = 0
A. {-4 ± 2
}
B. {4 ± 
}
C. {-1 ± 
}
D. {-4 ± 
}
Mathematics
Solve the system of equations using elimination. 
A. (5, 1) B. (-5, -1) C. (5, -1) D. (-5, 1)
Mathematics