In a university statistics class, two-thirds of the students purchased a printed textbook and the others selected an e-text. If there are 118 students enrolled, how many are using an e-text? Round to the nearest whole number.
A. 79
B. 44
C. 87
D. 39
Answer: D
Mathematics
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Solve.A pile of sand is cone-shaped. If the radius of the base is 8 feet and the altitude is 9 feet 6 inches, how many cubic feet of sand is in the pile? Round to the nearest tenth.
Fill in the blank(s) with the appropriate word(s).
Mathematics
Graph the inequality.x ? 2 
A. 
B. 
C. 
D. 
Mathematics
Write the augmented matrix for the system.-2x + 9y = 11 8y = 8
A. 
B. 
C. 
D. 
Mathematics
Solve.After being struck with a hammer, a gong vibrates 18 vibrations in the first second and in each second thereafter makes 
as many vibrations as in the previous second. Find how many vibrations the gong makes before it stops vibrating.
A. 22 vibrations B. 27 vibrations C. 54 vibrations D. 64 vibrations
Mathematics