Tim wants to purchase a watch for $98.99. he has a coupon that will discount the watch by 10%. if sales tax is 7.5%, what will tim pay at the register? (round to the nearest penny)

$95.77

Step-by-step explanation:

We are told that Tim wants to purchase a watch for $98.99.

He has a coupon that will discount the watch by 10%. So price of watch after using coupon will be,

Now let us find the price of watch after sales tax of 7.5%.

Therefore, Tim will pay $95.77 at the register.

answer: cos [   arcsin (3/5) - arccos (1/2) ] =

step-by-step explanation: × = 3/5 = 0.6--> x = 36.87 and x = 180 - 36.87 = 143.13 deg

cos y = 1/2 --> y = +- 60 deg a. cos (x - y) = cos (143.13 - 60) = cos 83,13  

=

0.12

b. cos (36.87 - 60) = cos (-23.23) = 0.92

answer is c

step-by-step explanation:

81/12=324/x

x=48