Solve.The sum of the squares of the digits of a positive two-digit number is 20, and the tens digit is 2 more than the units digit. Find the number.
A. 42
B. 53
C. 35
D. 24
Answer: A
Mathematics
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A. Yes B. No
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A 22-foot ladder leaning against the side of a house makes a 77° angle with the ground (see figure). How far up the side of the house does the ladder reach? Round your answer to four decimal places.
?
?
?
A. 21.4361 feet B. 22.5787 feet C. 4.9489 feet D. 5.0791 feet E. 97.7991 feet
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Use < or > to complete the following. 21 ft 
7 m
A. > B. <
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For the given expression, determine the indicated inverse.- 
additive inverse
A. 
B. 0
C. - 
D. 
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