A tuning fork with a frequency of 440hz gives off a constant amplitude pressure of 5 pascals. The fork is perfectly quiet, then is struck on a table at t=0 and rises to maximum positive amplitude. Determine a function describing the pressure vs. time of the tuning fork, then answer the following attributes: The function is . (Write in 1 of sin, -sin, cos, -cos exactly)
k=___
a=___ (leave off units)
b=___(round to nearest whole number)

Jim makes $10.35 per hour. write an equation that jim can use to calculate his pay.

/is used for a fraction 1) if x = 2/3 and y = 3/4, what is the value of (x + y) (x/y) expressed as a common fraction? 2) what is the least positive integer greater than 1 that leaves a remainder of 1 when divided by each of 2, 3, 4, 5, 6, 7, 8, and 9? 3) the ponde family's powerjet pumps 420 gallons of water per hour. at this rate, how many gallons of water will it pump in 45 minutes? 4) kim's insurance company pays 80% of the cost of all prescription medication she purchases in a year beyond the first $250 worth of prescriptions. her prescriptions for this year cost a total of $570. how many dollars of this amounts will kim's insurance company pay?

Which of the following is the explicit rule for a geometric sequence defined a recursive formula of a -5a for which the first term is 23?