During the construction of an office building, a hammer is accidentally dropped from a height of 784 ft. The distance the hammer falls in t sec is 
. What is the hammer's velocity when it strikes the ground? What is its acceleration?
?
A. ?224 ft/sec; 32 ft/sec2
B. ?32 ft/sec; 32 ft/sec2
C. ?266 ft/sec; 38 ft/sec2
D. ?224 ft/sec; 38 ft/sec2
E. ?266 ft/sec; 32 ft/sec2
Answer: A
Mathematics
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Multiply or divide as indicated.
? 
A. 
B. 
C. 
D. 
Mathematics
Decide whether or not the equation has a circle as its graph. If it does not, describe the graph.x2 + y2 + 10x - 18y + 42 = 0
A. yes B. no; the graph is the point (-5, 9) C. no; the graph is nonexistent D. no; the graph is the point (5, -9)
Mathematics
Simplify.
A. 
B. 
C. 
D. 
Mathematics
Use the distributive property to simplify.-5(2m - 8)
A. -10m - 40 B. -10m + 40 C. -40m + 10 D. 40m - 10
Mathematics