Simplify. Express the answer using positive exponents.x-9 ? x3 ? x-8
A. 
B. 
C. x14
D. x20
Answer: B
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If possible, solve each system by an algebraic method (substitution or addition method). Otherwise, state that the problem has no solution or an infinite number of solutions.9x - 4y = 47-0.5x + 0.3y = -2.3
A. (4, 7) B. (7, 4) C. (7, 5) D. (6, 5)
Solve the problem.The length of the base of an isosceles triangle is 42.59 meters. Each base angle is 34.17°. Find the length of each of the two equal sides of the triangle. Round your answer to the hundredths place.
A. 51.48 m B. 37.92 m C. 31.37 m D. 25.74 m
Sketch an angle ? in standard position such that ? has the least positive measure and the given point is on the terminal side of ?.(4, -2) 
A. 
B. 
C. 
D. 
Write a general formula to describe the variation.A varies directly with t2; A = 320 when t = 8
A. A = 5t2
B. A = 
C. A = 40t2
D. A = 