Clear fractions then solve by substitution.x + y = -2 x - y = -2

A. {(3, 0)}
B. {(-3, -1)}
C. {(-4, 0)}
D. ?


Answer: B

Mathematics

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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.

Mathematics

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).

Mathematics

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

Mathematics

Find the matrix product mentally, without the use of a calculator or pencil-and-paper calculations.

A.
B.
C.
D.

Mathematics