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If f(x) = │(x2 – 50)│, what is the value of f(-5) ?
A. 75
B. 25
C. 0
D. -25
E. -75
( √2 - √3 )2 =
A. 5 - 2√6
B. 5 - √6
C. 1 - 2√6
D. 1 - √2
E. 1
230 + 230 + 230 + 230 =
A. 8120
B. 830
C. 232
D. 230
E. 226
Amy has to visit towns B and C in any order. The roads connecting these towns with her home are shown on the diagram. How many different routes can she take starting from A and returning to A, going through both B and C (but not more than once through each) and not travelling any road twice on the same trip?
A. 10
B. 8
C. 6
D. 4
E. 2
In the figure above AD = 4, AB = 3 and CD = 9. What is the area of triangle AEC ?
A. 18
B. 13.5
C. 9
D. 4.5
E. 3
