Solve.An electrical circuit contains two resistors connected in parallel. If the resistance of each is R1 and R2 ohms, respectively, then their combined resistance R is given the formula R = 
If their combined resistance R is 2 ohms and R2 is 10 ohms, find R1.
A. 
ohms
B. 
ohms
C. 
ohm
D. 8 ohms
Answer: B
Mathematics
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Multiply or divide as indicated.
? 
A. 
B. 
C. 
D. 
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Evaluate.i27 + i23
A. -2 B. -2i C. 0 D. 2
Mathematics
Evaluate the algebraic expression for the given values of the variables.m ? n - 6, for m = 2, n = 5
A. 16 B. 4 C. 60 D. 2
Mathematics
Determine whether the vectors 
and 
are equivalent.A(5, 8), B(7, 15), C(0, 0), and D(2, 6)
A. Equivalent B. Not equivalent
Mathematics