Solve the system of equations by the substitution method. Check your solutions. For any dependent equations, write your answer in ordered pair form.
A. {(10, 10)}
B. {(0, 0)}
C. {(10, 0)}
D. {(0, 10)}
Answer: A
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Write the binomial expansion of the expression.(3x + 5)4
A. (9x2 + 15x + 25)4 B. 405x4 + 2700x3 + 1350x2 + 7500x + 625 C. 81x4 + 540x3 + 1350x2 + 1500x + 625 D. 81x3 + 540x2 + 1350x + 1500
Solve.A test contains 31 questions of which a student must answer 28. In how many ways can the student select the questions to answer?
A. 4495 B. 1.713 x 1032 C. 4.111 x 1033 D. 13,485
Solve the problem.The polynomial function H(x) = - 0.001183 x4 + 0.05495 x3 - 0.8523x2 + 9.054 x + 6.748models the age in human years, H(x), of a dog that is x years old, where x ? 1. Using the graph of this function shown below, what is the approximately equivalent dog age for a person who is 60?
A. 8.5 years B. 11 years C. 12.5 years D. 9 years
Write the equation of the line with the given slope and y-intercept.slope 
;y-intercept (0, 2)
A. y = - 
x - 2
B. y = 
x + 2
C. y = 
x - 2
D. y = - 
x + 2