Solve the system by the substitution method.y = 7x - x24x - y = -2
A. (1, 2)
B. (2, 10)
C. (-1, -2), (-2, -6)
D. (1, 6), (2, 10)
Answer: D
Mathematics
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Multiply.(5x6)
A. - 
x7y3z3
B. - 
x6y2z2
C. - 
x6y3z3
D. 
x7y2z2
Mathematics
Multiply.(n + 3)2
A. n2 + 9 B. n + 9 C. n2 + 6n + 9 D. 9n2 + 6n + 9
Mathematics
Solve the problem.The logistic growth model 
represents the population of a species introduced into a new territory after t years. What will the population be in 30 years?
A. 110 B. 140 C. 106 D. 431
Mathematics
The equation is in the form y = mx + b. Identify m and b.y = -4x - 5
A. m = -5; b = -4 B. m = -4; b = -5 C. m = -4; b = 5 D. m = 5; b = -4
Mathematics