Of 50 students selected at random at a school, 15 said they preferred their hamburgers plain. How many of the 1500 students enrolled in the school would you expect to prefer their hamburgers plain?
A) 520 students
B) 450 students
C) 425 students
D) 625 students
E) 550 students
B) 450 students
Mathematics
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Each matrix is nonsingular. Find the inverse of the matrix. Be sure to check your answer.
A. 
B. 
C. 
D. 
Mathematics
Evaluate the expression.(10a + 10b)0
A. 1 B. 10a + 10b C. 0 D. 10
Mathematics
Solve.Find the dimensions of a rectangular enclosure with perimeter 54 yd and area 152 yd2.
A. 9 yd by 18 yd B. 8 yd by 18 yd C. 8 yd by 19 yd D. 9 yd by 19 yd
Mathematics
Determine whether the sequence of vertices is an Euler circuit.
A ? B ? C ? D ? E ? F ? A
A. Yes B. No
Mathematics