Simplify by using the order of operations. Round your answer to the nearest hundredth, if necessary.8.198 + 0.13 ÷ 0.12
A. 21.20
B. 832.80
C. 9.50
D. 9.89
Answer: A
Mathematics
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Use unit ratios or conversion factors to change to the units indicated. Round to the nearest tenth, if necessary.31 cm to inches
A. 78.7 in. B. 3.1 in. C. 9.3 in. D. 12.1 in.
Mathematics
Solve the equation. Express radicals in simplest form.
+ x + 
= 0
A. {-16 + 
}
B. {8 ± 
}
C. {8 + 
}
D. {-8 ± 
}
Mathematics
Evaluate.
? 
+ 
? 
A. 
B. 
C. 
D. 
Mathematics
Find a quadratic model for the sequence with the indicated terms. ? a0 = 4, a2 = 0, a6 = 38 ?
A. an= -4n2 
n + 
B. an = 
n2 
n - 4
C. ?an= 4n2 
n + 
D. ?an= 
n2+ 
n - 4
E. ?an= 
n2 
n + 4
Mathematics