The temperature during a day can be modeled by a sinusoid. answer the following question given that the low temperature of 53 degrees occurs at 4 am and the high temperature for the day is 99 degrees. find the temperature, to the nearest degree, at 8 am.

73 degrees

Step-by-step explanation:

Given that the temperature during a day can be modeled by a sinusoid.

At 4 am. lowest = 53 deg and at 4 pm highest = 99 deg

Amplitude = (99-53)/2 = 23

Mean temp = 76 deg

If 4 am is taken as t =0 then we have middle temp = 46 degrees at 10 a.m.

Hence equation would be of the form

T(t) =23 sin (pi t/12)+53 where T is the temperature and t is time in hours from 4 a.m.

At 8 am t =4

So T(4) = 23 sin pi/3 +53  = 19.92+53  =72.92

Nearly 73 degrees

lo.lll

step-by-step explanation:

$4034.40

the perimeter of the field is the sum of the lengths of the four sides:

47 yd + 158 yd + 47 yd + 158 yd = 410 yd

the cost of 3 ft (1 yd) of fence is 3×$3.28 = $9.84.

so the cost of jake's wood perimeter fance is

(410 yd) × ($9.84 /yd) = $4034.40