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)

Idont understand math at all! : o( use this scenario to answer the remaining questions: brenton purchased a new bedroom set for $4,500.00. he lives in arizona and pays a 8.75% sales tax. if he made a 50% down payment and financed the rest, what amount did he finance? what is the total sales tax brenton will pay? enter your answer in currency format, round to the nearest cent. what was brenton's total amount financed? enter your answer in currency format, round to the nearest cent.

Suppose i flip two identical coins. what is the probability that i get one head and one tail?

Hey hotel charges guests $19.75 a day to rent five video games at this rate which expression can be used to determine the charge for renting nine video games for one day at this hotel? pls