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 = 8 when 
If necessary, round the answer to the nearest tenth of a second.
A. 0.3 sec
B. 1.1 sec
C. 1.8 sec
D. 1.3 sec
Answer: B
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Answer the question.Which of the statements below suggests an appropriate level of precision?
A. Every day I drive a distance of 75.134 miles to work. B. Every day I drive a distance of 75.1341 miles to work. C. Every day I drive a distance of 76 miles to work. D. Every day I drive a distance of 80 miles to work. [to the nearest 10 miles]
Find the standard quota asked for. Round your answer to two decimal places if necessary.A school district receives a grant to purchase 39 new computers to be apportioned among the 6 schools in the district based on the student population of each school. The student populations are given in the following table.
Find the standard quota for school A.
A. 10.26 B. 9.84 C. 7.8 D. 9.02
Factor completely.12x2 + 25x + 12
A. (3x - 4)(4x - 3) B. (12x + 1)(x + 12) C. (12x + 4)(x + 3) D. (3x + 4)(4x + 3)
Solve the problem.A retired couple invested a total of $160,000. They invested some of the money in safe certificates of deposit yielding 7%. The remainder they invested in AA bonds yielding 10% per year. In the first year they made a total profit of $14,200. How much did they invest at each rate?
A. $100,000 at 7% and $60,000 at 10% B. $100,000 at 10% and $60,000 at 7% C. $110,000 at 10% and $50,000 at 7% D. $90,000 at 7% and $70,000 at 10%