exam
Maths Puzzle
Numerical Ability
Carol has 18 coins with a total value of $3.45. If the coins are dimes and quaters, how many of each kind are there?
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exam Other Question
Write an exponential function of the form y=ab^x whose graph passes through the given points.
17. (1,4),(2,12)
For an ellipse with foci (0,+or-1) and a major axis with length 6.
a) Explain in 1-2 sentences how you decide if this ellipse is horizontal or vertical.
b) In 3-4 sentences, e