Solve the problem.How many of the "words" below have both horizontal and vertical reflection symmetry?NON OXO IHI SOS VIV HOOK
A. 2
B. 1
C. 4
D. 3
Answer: A
Mathematics
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Use De Morgan's laws to write a statement that is equivalent to the given statement. ~p ? (q ? ~r)
A. (~q ? r) ? p B. p ? (~q ? ~r) C. (~q ? ~r) ? p D. p ? (~q ? r)
Mathematics
Evaluate.Let a = 
i + 
j , b = 
i + 
j. Find a - b.
A. 
i + 
j
B. 
i + 
j
C. 
i + 
j
D. 
i - 
j
Mathematics
Write the fraction as a decimal in hundredths with the remainder expressed as a fraction.
A. 0.08 
B. 0.08 
C. 0.08 
D. 0.08 
Mathematics
Solve the variation problem.The amount of water used to take a shower is directly proportional to the amount of time that the shower is in use. A shower lasting 22 minutes requires 15.4 gallons of water. Find the amount of water used in a shower lasting 4 minutes.
A. 3.5 gallons B. 2.1 gallons C. 2.8 gallons D. 88 gallons
Mathematics