Solve the problem.The perimeter of a triangle is 82 cm. The triangle is isosceles now, but if its base were lengthened by 5 cm and each leg were shortened by 6 cm, it would be equilateral. Find the base of the original triangle.
A. 19
B. 20
C. 31
D. 25
Answer: B
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Write the converse, inverse, or contrapositive off the proposition, as indicated.If the sum of the interior angles of a geometric figure is 180 degrees, then the figure is a triangle. (contrapositive)
A. If the sum of the interior angles of a geometric figure is not 180 degrees, then the figure is not a triangle. B. If a geometric figure is not a triangle, then the sum of the interior angles is 180 degrees. C. If a geometric figure is not a triangle, then the sum of the interior angles is not 180 degrees. D. If a geometric figure is a triangle, then the sum of the interior angles is 180 degrees.
Use the rules for exponents to rewrite the expression and then evaluate the new expression. 
A. -14 B. -5 C. 0 D. 1
Determine whether the given values of x are solutions to the compound inequality. (Y/N).x - 3 < 10 and 3x > 9; x = 12, x = 3
A. Yes, No B. No, Yes C. No, No D. Yes, Yes
Graph the function.f(x) = ?1 - x?
A. 
B. 
C. 
D. 