Find the solution to the system of equations by substitution.x = -yy + x = 6
A. (1, 5)
B. (1, 1)
C. infinite number of solutions
D. no solution
Answer: D
Mathematics
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Find the exact value of the trigonometric expression without the use of a calculator.sec
A. - 
B. - 
C. 
D. - 
Mathematics
Factor completely. If the polynomial cannot be factored, write "prime."x4 + 4x3 + 2x2 + 8x
A. (x2 - 2)(x2 + 4x) B. x(x + 4)(x2 + 2) C. x(x2 + 2)(x - 4) D. Prime
Mathematics
Use a combination of rules for exponents to simplify. Write answers with only positive exponents. Assume that all variables represent nonzero real numbers.
2
A. 
B. 
C. 
D. 
Mathematics
Find the nth term of the geometric sequence.a1 = 1792, r = 
, n = 2
A. a2 = - 
B. a2 = 448
C. a2 = -448
D. a2 = 
Mathematics