In the current first-year class of a community college, all the students come from three local high schools. Schools I, II, and III supply respectively 40%, 50%, and 10% of the students. The failure rate of students is 4%, 2%, and 6%, respectively. Given that a student fails, what is the probability that he or she came from school I?
Fill in the blank(s) with the appropriate word(s).
0.5
Mathematics
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Graph the equation.f(x) = 
x2
A. 
B. 
C. 
D. 
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Find the standard equation of the sphere with center C and radius r.
C(4,-1,1); r=6
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Solve the problem.How many different ways can you make change for a 25-cent coin using dimes, nickels, and pennies?
A. 10 B. 12 C. 13 D. 11
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Solve the problem.The recommended weight of an adult can be found using the expression: 
where h in the person's height in inches. A man weighs 156 pounds. Write an equation that will solve for the man's height.
A. 156 - 
h = 220
B. 156 + 
h = 220
C. 
h - 220 = 156
D. 
h - 220 = 156
Mathematics