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anonymous
 one year ago
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anonymous
 one year ago
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This Question is Closed

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2your part 1 is correct, but part 2 is not

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2dw:1435541483644:dw

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2dw:1435541514136:dw

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2dw:1435541555572:dw

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2The period T is found through the formula T = 2pi/B

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2do you see how to find T?

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2If you're stuck, then \[\Large T = \frac{2\pi}{B}\] \[\Large T = \frac{2\pi}{\frac{\pi}{15}}\] \[\Large T = \frac{\frac{2\pi}{1}}{\frac{\pi}{15}}\] \[\Large T = \frac{2\pi}{1}\times\frac{15}{\pi}\] \[\Large T = ??\]

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2the pi's will cancel

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2yep, the period is 30 seconds that means it takes 30 seconds for the wheel to do one full cycle

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2in part 1, you should NOT have cos/( it should be cos( there is no division sign between the "cos" and the opening parenthesis

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2I noticed that just now. But everything else in part 1 looks good

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0can i do part three and you check?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0actually can you help because i have no idea where to start..

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2we can graph the h(t) function using desmos. That's probably the easiest way an alternative is to remember that cos(x) has a min of 1. That's the smallest output cosine can give

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2since the smallest output is 1, you can replace the cos(pi/15t) with 1 and evaluate

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0so itd be cos((pi/15)1)? orrrr

anonymous
 one year ago
Best ResponseYou've already chosen the best response.020cos((pi/15)1)+30?

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2\[\Large 20*\cos\left(\frac{\pi}{15}t\right) + 30\] \[\Large 20*(1) + 30 = ??\]

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2I replaced all of the cosine with 1

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0hang on ill brb i have to take my dog out

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0okay back lemme look

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0or 49? do you add 1 to 30 and then add 20 or?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0PEMDAS so multiply then add so 20*1 20+30=10

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.220(1)+30 = 10, yes

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2that means the lowest on the Ferris wheel is 10 ft off the ground
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