Find the quotient. Assume that all variables represent nonzero real numbers.
A. 27r7 - 45r4
B. 3r8 - 5r5
C. 3r9 - 5r6
D. 3r7 - 5r4
Answer: D
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Provide an appropriate response.Find the length of the vector whose endpoint is: (-5, 5)
Fill in the blank(s) with the appropriate word(s).
Solve the problem. Round amounts of money to the nearest cent.The caretaker at the mall puts 370 mL of antistatic into the humidifier every day. How many liters are needed for a three-month (30 days/month) supply?
A. 333 L B. 33,300 L C. 33.3 L D. 3330 L
Solve the problem.A faucet is used to add water to a large bottle that already contained some water. After it has been filling for 5 seconds, the gauge on the bottle indicates that it contains 25 ounces of water. After it has been filling for 12 seconds, the gauge indicates the bottle contains 53 ounces of water. Find and interpret the average rate of change in the volume of water per second.
A. 4 ounces per second; the average rate of change in the volume of water is 4 ounces per second.
B. 41 ounces per second; the average rate of change in the volume of water is 41 ounces per second.
C. 5 ounces per second; the average rate of change in the volume of water is 5 ounces per second.
D. 
ounce per second; the average rate of change in the volume of water is 
ounce per second.
Determine whether the matrix is in row-echelon form. If it is, then determine also whether it is in reduced row-echelon form.
A. Yes; yes B. Yes; no C. No