Solve the problem.Ron takes two hr more time than Paul to mow the lawn. Working together they can mow the lawn in 
. How long does it take each of them working alone?
A. Paul: 10 hr; Ron: 12 hr
B. Paul: 8.3 hr; Ron: 10.3 hr
C. Paul: 9.1 hr; Ron: 11.1 hr
D. Paul: 8 hr; Ron: 10 hr
Answer: C
Mathematics
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Perform the matrix operation.Let A =
and B = 
. Find 3A + B.
A. 
B. 
C. 
D. 
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Find the average inventory.
A. $71,489.00 B. $285,956.00 C. $60,205.00 D. $57,191.20
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Find the domain of the function.f(x) = 
A. 
, or 
? 
B. 
, or (-?, -4) ? 
? 
C. 
, or 
? 
? (4, ?)
D. {x| x ? 4}, or (-?, 4) ? (4, ?)
Mathematics
Convert to scientific notation.0.0000072618
A. 7.2618 × 106 B. 7.2618 × 10-7 C. 7.2618 × 10-5 D. 7.2618 × 10-6
Mathematics