Find the product of the complex number and its conjugate.5 - 5i
A. 25 - 25i
B. 50
C. 0
D. 25 + 25i
Answer: B
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Perform the indicated operation. If possible, simplify.Multiply:
A. cos2 x B. - cos2 x C. sin2 x - 2sin x - 1 D. sin2 x - sin x - 1
If possible, evaluate the expression by hand. If not, approximate the answer to the nearest hundredth.
2
A. -9
B. 
C. 9
D. 
Provide an appropriate response.To graph a straight line, we must find a minimum of points.
Fill in the blank(s) with the appropriate word(s).
Solve the problem.A thermometer reading 
is brought into a room with a constant temperature of 
If the thermometer reads 
after 4 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. 65.15°F B. 36.47°F C. 89.02°F D. 50.98°F