The height of a monument is 20m. A horizontal cross-section at a distance x meters from the top is an equilateral triangle with side 
meters. Find the volume of the monument. Select the correct answer.
a. 
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Solve.Find the intersection: {-5, 0, 2, 5} ? {2, 5, 7}.
A. {2, 5} B. {-5, 0, 2, 5, 7} C. {-5, 0, 2, 5} D. {2, 5, 7}
Which organization hosts professional development conferences for teachers?
a. NCTM b. The College Board c. ASCD d. All of the above
Solve the problem.A machine produces open boxes using square sheets of plastic. The machine cuts equal-sized squares measuring 3 inches on a side from each corner of the sheet, and then shapes the plastic into an open box by turning up the sides. If each box must have a volume of 675 cubic inches, find the length of one side of the open box.
A. 15 in. B. 21 in. C. 18 in. D. 14 in.
The terminal side of ? in standard position contains the given point. Find the values of the six trigonometric functions of ?.(7, 
)
A. sin ? = 
cos ? = 
tan ? = 
csc ? = 
sec ? = 
cot ? = 
B. sin ? = 
cos ? = 
tan ? = 
csc ? = 
sec ? = 
cot ? = 
C. sin ? = 
cos ? = 
tan ? = 
csc ? = 
sec ? = 
cot ? = 
D. sin ? = 
cos ? = 
tan ? = 
csc ? = 
sec ? = 
cot ? = 