Along, very smooth board is inclined at an angle of 15° with the horizontal. a weight starts from rest 10 ft from the bottom of the board slides downward under the action of gravity alone. (a) find how long it will take the weight to reach the bottom of the board. (b) determine the terminal speed.

The lengths of nails produced in a factory are normally distributed with a mean of 4.91 centimeters and a standard deviation of 0.05 centimeters. find the two lengths that separate the top 4% and the bottom 4%. these lengths could serve as limits used to identify which nails should be rejected. round your answer to the nearest hundredth, if necessary.

Twice the sum of a number and 4 is equal to three times the difference of the number and 7. find the number.

Kayaks rent for $35 per day. which expression can you use to find the cost in dollars of renting 3 kayaks for a day?