Solve the inequality.x2 + 7x ? 0
A. [0, 7]
B. (-?, -7] or [0, ?)
C. [-7, 0]
D. (-?, 0] or [7, ?)
Answer: B
Mathematics
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Determine whether it is true or false that the described rigid movement(s) will produce a figure with symmetry to the figure shown.Reflect about axis L
A. True B. False
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Solve the problem.At step 1 in the construction of the Sierpinski gasket, there is 1 hole. At step 2 in the construction, there are 4 holes. How many holes are there at step 4 of the construction?
A. 121. B. 13. C. 10. D. 40. E. none of these
Mathematics
Add.-8.4 + (-21.1)
A. 29.5 B. -12.7 C. 12.7 D. -29.5
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Convert the units using two or three unit fractions.10 gal = 
c
A. 80 B. 40 C. 160 D. 20
Mathematics