Solve the application problem.Suppose that the two triangles shown in the figure are similar. Find x. 
A. x = 5
B. x = 4
C. x = 8
D. x = 9
Answer: B
Mathematics
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Solve the problem.How many spanning trees does the following network have?
A. 7 B. 4 C. 5 D. 6 E. none of these
Mathematics
Write an equation of the line through the given point with the given slope. Write the equation in slope-intercept form.(7, -1); slope: - 
A. y = - 
x + 
B. y = - 
x + 
C. y = 
x - 
D. y = - 
x + 5
Mathematics
Let x be a number. Translate the English phrase or sentence into a mathematical expression. Nine less than a number
A. 9 - x B. x + 9 C. 9x D. x - 9
Mathematics
Graph the function as a solid curve and its inverse as a dashed curve.f(x) = 3x 
A. 
B. 
C. 
D. 
Mathematics