Simplify the expansion.(5 ? 102) + (7 ? 101) + (2 ? 100)
A. 572
B. 5072
C. 5720
D. 570
Answer: A
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Solve the problem.The current in a simple electrical circuit is given by I = V/R, where I is the current in amperes, V is the voltage in volts, and R is the resistance in ohms. When V = 12 volts, what is a 12? resistor's tolerance for the current to be within 1 ± 0.01 amp?
A. 0.01% B. 0.1% C. 10% D. 1%
Add and simplify.
+ 
+ 
A. 
B. 
C. 
D. 
Use the discriminant to determine the number and type of solutions for the given equation.25x2 + 10x = 0
A. two imaginary solutions B. two real irrational solutions C. one (repeated) real rational solution D. two real rational solutions
Translate to an equation and solve. 175 is what percent of 1980?Round your answer to the nearest tenth of a percent.
A. 8.8% B. 5.1% C. 1131.4% D. 0.1%