Provide an appropriate response.Show that the nth triangular number is 
.
What will be an ideal response?
Answers will vary
Mathematics
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Solve the problem.The water reservoir for a city is shaped like a rectangular prism 238 meters long, 188 meters wide, and 18 meters deep at the end of the day, the reservoir is 60% full. How much water must be added overnight to fill the reservoir?
A. 442,966 m3 B. 1,248,358 m3 C. 1,127,549 m3 D. 322,157 m3
Mathematics
Sketch the given surface.z = x2 + 4y2
What will be an ideal response?
Mathematics
The problem tells by what factor and direction the graph of the given function is to be stretched or compressed. Give an equation for the stretched or compressed graph.y = 
compressed vertically by a factor of 2
A. y = 
B. y = 2
C. y = 
D. y = 
Mathematics
Evaluate the determinant.
A. -67 B. 288 C. -72 D. 72
Mathematics