Solve the problem.To convert a Fahrenheit temperature to a Celsius temperature, we subtract 32 from the Fahrenheit temperature and then multiply the result by 
. When the temperature is 50°F, what is the temperature in degrees Celsius? Round to the nearest tenth of a degree.
A. 4.2°C
B. 122.0°C
C. 58.0°C
D. 10.0°C
Answer: D
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Find the slope of the curve for the given value of x.y = x3 - 9x, x = 1
A. slope is -3 B. slope is -6 C. slope is 1 D. slope is 3
As part of a statistics project, a 6th grade teacher brings to class a container with 300 red marbles and 500 white marbles which are thoroughly mixed. To figure out how many marbles in the container are red without actually counting them all, a student randomly draws 40 marbles from the container. Of the 40 marbles drawn, 16 are red.The N-value for this population is
A. 40. B. 16. C. 800. D. 300. E. none of these
Express the product as a sum or difference.cos 3x cos 6x
A. 
(cos 9x - cos 3x)
B. cos2 12x2
C. 
(cos 9x - sin 3x)
D. 
(cos 3x + cos 9x)
Solve the problem.What is the probability of spinning a D on this spinner?
A. 
B. 
C. 
D. 