Provide an appropriate response.Find the x-coordinate of the vertex of a graph of the quadratic function 
A. - 
B. 
C. 
D. - 
E. none of the above
Answer: B
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Solve the problem.Find the radius of gyration about the lamina bounded by the coordinate axes and the line 
if 
.
A. 
= 
B. 
= 
C. 
= 
D. 
= 
The bar graph shows the percent of income spent on leisure activities in various countries of the world. Use the graph to answer the question.
In which country is the lowest percent of income spent on leisure activities? What percent is this?
A. China; 94.4% B. USA; 70.6% C. Australia; 8.3% D. China; 5.6%
Solve.On a biology test, a student got 25 questions correct but did not pass. On a second attempt, the student got 37 questions correct. What was the percent of increase?
A. 32.4% B. 48% C. 12% D. 52%
Find the direction angle ? for the given vector. Let 0° ? ? < 360° and round ? to the nearest tenth when appropriate.
A. 53.1° B. 117.1° C. 216.9° D. 233.1°