Suppose each edge of the cube shown in the figure is 7 inches long.
?
?
Find the measure of the angle formed by diagonals CF and 0CH.
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Round your answer to the nearest tenth of a degree.
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A. ?
B. ?
C. 
D. ?
E. ?
Answer: C
Mathematics
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Estimate the answer by rounding as indicated.Estimate by rounding to the nearest ten.
A. 130 B. 40 C. 37 D. 30
Mathematics
Supply the missing numbers. fraction decimal percent49%
A. 
0.49
B. 
0.49
C. 
4.9
D. 
4.9
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Find the domain of the rational expression. 
A. {x|x is a real number and x ? -8 and x ? -9} B. {x|x is a real number and x ? 8 and x ? 9} C. {x|x is a real number} D. {x|x is a real number and x ? -8 and x ? 9}
Mathematics
Graph the inequality.x2 + (y + 3)2 ? 25
A. 
B. 
C. 
D. 
Mathematics