Find the sum.1 + 2 + 3 + ... + 536
A. 287,296
B. 287,832
C. 143916
D. 143380
Answer: C
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Solve the problem.For a hyperbolic mirror the two foci are 42 cm apart. The distance of the vertex from one focus is 6 cm and from the other focus is 36 cm. Position a coordinate system with the origin at the center of the hyperbola and with the foci on the y-axis. Find the equation of the hyperbola.
A. 
- 
= 5
B. 
- 
= 1
C. 
- 
= 5
D. 
- 
= 1
Determine whether the graph of the equation is symmetric with respect to the x-axis, the y-axis, and/or the origin.x2 + y - 36 = 0
A. origin B. x-axis C. y-axis D. x-axis, y-axis, origin E. none
Find the dot product v ? w.v = i + 2j, w = 6i - j
A. 4 B. 0 C. 8 D. -4
Construct the requested tree diagram.Use the tree diagram to count how many four-child families have two boys and two girls.
A. 6 families B. 4 families C. 2 families D. 8 families