Find the lengths of the sides of the triangle with the indicated vertices.
?
?
A. d1=
, d2= 
, ?d3=
B. d1=
, d2=, d3= 
C. d1=
, d2= , d3= 
D. d1=
, d2= 
, d3= 
E. d1=
, d2= 
, d3=
Answer: D
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Find the vertex, focus, and directrix of the parabola. Graph the equation.(y + 1)2 = 4(x + 3)
A. vertex: (3, 1)
focus: (3, 2)
directrix: y = 0
B. vertex: (-3, -1)
focus: (-2, -1)
directrix: x = -4
C. vertex: (1, 3)
focus: (2, 3)
directrix: x = 0
D. vertex: (-3, -1)
focus: (-3, 0)
directrix: y = -2
Use mathematical induction to prove the following.(48)n = 48n
What will be an ideal response?
Simplify.If Q(x) = x2 - 4, find Q(-2).
A. -6 B. 4 C. 36 D. 0
Solve the problem.In a 1-mile race, the winner crosses the finish line 10 feet ahead of the second-place runner and 30 feet ahead of the third-place runner. Assuming that each runner maintains a constant speed throughout the race, by how many feet does the second-place runner beat the third-place runner? (5280 feet in 1 mile.)
A. -20.11 ft B. 10.02 ft C. -10.06 ft D. 20.04 ft