Determine whether the lines are perpendicular. Use a protractor.
A. Yes
B. No
Answer: A
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Find the volume of the described solid.The base of the solid is the disk x2 + y2 ? 4. The cross sections by planes perpendicular to the 
between 
and 
are isosceles right triangles with one leg in the disk.
A. 
B. 
C. 
D. 
Solve the problem.Maria and Charlie can deliver 96 papers in 2 hours. How long would it take them to deliver 72 papers?
A. 1.5 hr B. 2.3 hr C. 2.7 hr D. 144 hr
Solve the problem.The Blanchards have saved $21,545 for a down payment on a house. If a 15
% down payment is required, what price house can they buy?
A. $333,900 B. $3339 C. $139,000 D. $1390
Solve the problem.A thermometer reading 8°C is brought into a room with a constant temperature of 25°C. If the thermometer reads 16°C after 5 minutes, what will it read after being in the room for 10 minutes? Assume the cooling follows Newton's Law of Cooling: U = T + (Uo - T)ekt.(Round your answer to two decimal places.)
A. 29.76°C B. -1.24°C C. 24.97°C D. 20.24°C