Solve for the variable.
+ 4 = x + 0
A. x = -4
B. x = -4, x = 
C. x = 2, x = 8
D. x = 8
Answer: D
Mathematics
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Use the table of xy-values to make a line graph.
A. 
B. 
C. 
D. 
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Rationalize the denominator.
A. 
B. 
C. 
D. 
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Use the given vectors to find the value of the indicated scalar.u = 4i + 6j and v = -15i - 7j; Find u ? v.
A. -18 B. -102 C. -42 D. -60
Mathematics
Let x represent the unknown. Using the given "word" equation, write an equation and solve.A 40-gallon mixture of alcohol and water contains 25 gallons of alcohol. How many gallons of water is contained in the mixture? amount of alcohol + amount of water = total amount of mixture
A. 25 + x = 40; 15 gallons B. x + 40 = 25; 10 gallons C. 25 - x = 40;15 gallons D. x = 25; 25 gallons
Mathematics