State the name of the property illustrated.(x + 3) + [-(x + 3)] = 0

A. Inverse property of addition
B. Commutative property of addition
C. Identity property of multiplication
D. Inverse property of multiplication


Answer: A

Mathematics

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Solve.ABC phone company charges $21 per month plus 8¢ per minute of phone calls. XYZ phone company charges $15 per month plus 10¢ per minute of phone calls. How many minutes of phone calls in a month make XYZ phone company the better deal?

A. More than 30 minutes B. Less than 30 minutes C. More than 300 minutes D. Less than 300 minutes

Mathematics

Solve the equation for c.103c + 5 = d

A. c = log d - 
B. c = log
C. c = 
D. c = 

Mathematics

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

Mathematics

Find the perimeter of the figure.

A.  m
B.  m
C.  m
D.  m

Mathematics