Clear fractions then solve by substitution.
x + 
y = -2 x - y = -2
A. {(3, 0)}
B. {(-3, -1)}
C. {(-4, 0)}
D. ?
Answer: B
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Use De Morgan's laws to write a negation of the statement.A man eats six hot dogs and he does not get a stomach ache.
A. A man does not eat six hot dogs or he gets a stomach ache. B. A man eats six hot dogs or he gets a stomach ache. C. A man eats six hot dogs and he gets a stomach ache. D. A man does not eat six hot dogs or he does not get a stomach ache.
Solve the problem.Write the algebraic equation which can be used to find the exact solution of 
Fill in the blank(s) with the appropriate word(s).
Solve the problem.The voltage across a resistor is jointly proportional to the resistance of the resistor and the current flowing through the resistor. If the voltage across a resistor is 
for a resistor whose resistance is 
and when the current flowing through the resistor is 
find the voltage across a resistor whose resistance is 
and when
the current flowing through the resistor is 
A. 16 volts
B. 12 volts
C. 48 volts
D. 6 volts
Find the matrix product mentally, without the use of a calculator or pencil-and-paper calculations.
A. 
B. 
C. 
D. 