Solve the problem.If friction is ignored, the time t (in seconds) required for a block to slide down an inclined plane is given by the formula t = 
where a is the length (in feet) of the base and g ? 32 feet per second per second is the acceleration of gravity. How long does it take a block to slide down an inclined plane with base a = 12 when 
If necessary, round the answer to the nearest tenth of a second.
A. 1.6 sec
B. 2.2 sec
C. 0.4 sec
D. 1.3 sec
Answer: D
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Write the number in words.480,050,591
A. forty-eight million, fifty thousand, five hundred ninety-one B. four hundred eighty million, fifty thousand, five hundred ninety-one C. four million, eight hundred five thousand, five hundred ninety-one D. four hundred eighty million, five hundred thousand, five hundred ninety-one
Perform the indicated operation. Write the result in the form a + bi.
? 
A. 
B. -i
C. -
D. i
Guess the rule used to change one number into another.
A. n2 + 10 B. 3n + 8 C. 4n + 6 D. None of the above is the correct rule.
Provide an appropriate response.The sales manager of a department store finds that its daily sales begins to fall after the end of a promotional campaign. The sales in dollars as a function of the number of days after the campaign's end is given by S(d) = 36,000
-0.1d. If she does not want sales to drop below 30,000 per day before starting a new campaign, when should she start a new campaign?
Fill in the blank(s) with the appropriate word(s).