Solve the problem.Suppose that a radio transmission pattern can be modeled by 
for 
where the units are miles. Determine the predominant direction(s) of transmission and the distance(s) of transmission in such direction(s). Assume that the positive 
points east.
A. Northeast and southwest; 80 miles
B. Northeast; 80 miles
C. Northeast and southwest; 6400 miles
D. North and south; 80 miles
Answer: A
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Find the indicated probability. Round your answer to 6 decimal places when necessary.A fair die is rolled. What is the probability of rolling an odd number or a number less than 3?
A. 
B. 1
C. 
D. 
Provide the requested information about the circular function.What are the x-intercepts of y = cos x?
A. x = n?
B. x = 
+ n?
C. x = 2n?
D. x = 
+ n?
Solve for x.
? 11
A. x ? - 
or x ? 
B. x ? - 
or x ? 
C. - 
? x ? 
D. - 
? x ? 
Write a word name for the number in the sentence.The holder of the "magic number" 555,888,333,999 (which was generated during a college's lottery for distributing student housing) was eligible to choose from among the best dormitories.
A. five hundred billion, eight hundred eighty-eight million, three hundred thirty-three thousand, nine hundred ninety-nine B. five hundred fifty-five million, eight hundred eighty-eight thousand, three hundred thirty-three hundred, nine hundred ninety-nine C. five hundred fifty-five billion, eight hundred eighty-eight million, three hundred thirty-three thousand, nine hundred ninety-nine D. fifty-five billion, eight hundred eighty-eight million, three hundred thirty-three thousand, nine hundred ninety-nine