Write the number in trigonometric form. Let 0° ? ? < 360°.4
- 4i
A. 8(cos 30° + i sin 30°)
B. 8(cos 300° + i sin 300°)
C. 8(cos 60° + i sin 60°)
D. 8(cos 330° + i sin 330°)
Answer: D
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Determine convergence or divergence of the series.
A. Converges B. Diverges
Solve.Claire is reading a 501-page book. If she has just finished reading page 219, how many more pages must she read to finish the book?
A. 392 pages B. 292 pages C. 283 pages D. 282 pages
Determine which function matches the graph. Do this without using your grapher.
A: y = 2 + 
- 
B: y = x - 1 + 
- 
C: y = 2 - 
/> - 
D: y = x - 1 - 
+ 
A. C
B. B
C. A
D. D
Solve the problem.Charles's law states that the volume V of a gas varies directly as its temperature T in kelvin, provided that the pressure and mass of the gas remains constant. (To convert a Celsius temperature to a kelvin temperature, add 273.) A container of gas has a volume of 450 milliliters at 8°C. If the gas is cooled and now has a volume of 390 milliliters, what is its temperature in degrees Celsius? Round your answer to the nearest hundredth of a degree as needed.
A. -29.47°C B. 265.13°C C. 6.5°C D. 276°C