Solve the system by the elimination method. x + 4y = -4-5x + 5y = -5
A. {(0, -1)}
B. ?
C. {(1, -2)}
D. {(1, 0)}
Answer: A
Mathematics
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Perform the operation indicated.
? 
A. 
B. 
C. 
D. 
Mathematics
Consider only the discriminant, b2 - 4ac, to determine whether one real-number solution, two different real-number solutions, or two different imaginary-number solutions exist.x2 - 6x + 4 = 0
A. Two different real-number solutions B. One real solution C. Two different imaginary-number solutions
Mathematics
Simplify.
3
A. 
B. 125mn
C. 
D. 
Mathematics
Find the product. Write the answer in standard form.6i(9 - 6i)
A. 54i + 36i2 B. 54i - 36 C. - 54i - 36i2 D. 36 + 54i
Mathematics