A pair of similar triangles is shown. Find the measure of the segment marked with the letter x.
A. x = 12
B. x = 7
C. x = 21
D. x = 28
Answer: C
Mathematics
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Solve the problem.Find an equation for the level curve of the function f(x, y) = 100 - x2 - y2 that passes through the point 
.
A. x2 + y2 = 108 B. x2 - y2 = 8 C. x2 + y2 = 8 D. x2 + y2 = - 8
Mathematics
Solve the problem.For what value of a is the volume of the tetrahedron formed by the coordinate planes and the plane 
equal to 9?
A. a = 
B. a = 
C. a = 
D. a = 9
Mathematics
Sketch the graph.A generator produces a voltage 
, where t is the time in seconds. Graph V as a function of t for 
.
A. 
B. 
C. 
D. 
Mathematics
Provide an appropriate response.Which fraction is equivalent to 
and has a denominator of 30?
A. 
B. 
C. 
D. 
Mathematics