Rewrite the exponential equation 
in logarithmic form.
A. 
B. 
C. 
D. 
E. 
Answer: D
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Perform the operation and simplify, or solve the equation for the variable.
- 
+ 
A. 
B. 
C. 
D. 
Factor the polynomial completely.343c3 + 64
A. (343c + 4)(c2 - 28c + 16) B. (7c + 4)(49c2 + 16) C. (7c + 4)(49c2 - 28c + 16) D. (7c - 4)(49c2 + 28c + 16)
Solve the system using matrices. If there is no solution or if there are infinitely many solutions and a system's equations are dependent, so state.
A. {(1, -2, 2)} B. infinitely many solutions; dependent equations C. no solution or ? D. {(2, -2, 1)}
Solve the problem.A thermometer is removed from a cup of coffee and placed in water whose temperature (Tm) is 10 °C. The following data were collected over the next 30 seconds. 
Use an exponential regression equation for the T - Tm data to estimate the thermometer reading when it was removed from the hot coffee.
A. 91.28 °C B. 89.92 °C C. 95.64 °C D. 85.62 °C