exam Maths Puzzle Numerical Ability

Help! What is an augmented matrix? Give an example based on a system of equations. Thank You!

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exam Other Question

F(X)=

2X
-----
X^2+16

FIND ALL VERTICAL AND HORIZONTAL ASYMPTOTES In 1990, 28% of babies in the United States were boren to parents who were not married. Throughout the 1990s, this increased by approx. 0.6% per year. If this trend continues in which year will 37% of babies be born out of wedlock?

thanks.