Use factoring to solve the equation.3x2 - 23x = 8
A. -3, 8
B. - 
, -3
C. - 
, 8
D. - 
, 3
Answer: C
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Write the complex number in standard polar form. Write the argument in radians using exact values.z = 2 - 2i
A. 2
B. 2
C. 2
D. 2
Find the constant of proportionality k, and write the linear function relating the two variables.Suppose that y varies inversely with x. When x = 65, then y = 9.
A. k = 585; y = 
B. k = 585; y = 
C. k = 
; y = 
D. k = 
; y = 
x
Solve the problem.A thermometer reading 11°C is brought into a room with a constant temperature of 30°C. If the thermometer reads 17°C after 4 minutes, what will it read after being in the room for 7 minutes? Assume the cooling follows Newton's Law of Cooling: U = T + (Uo - T)ekt.(Round your answer to two decimal places.)
A. 5.87°C B. 28.67°C C. 20.22°C D. 39.78°C
In a mix of pennies and nickels, there are 22 coins with a total value of 82 cents. How many nickels are there?
A. 11 nickels B. 7 nickels C. 8 nickels D. 15 nickels