My answer would be a. a radio play is<span> the art of performing stories, acts, or even full-lengths musicals to be broadcast on radios. so baiscly u can really see them at all.</span>
Step-by-step explanation:
<h3><em>
I hope the picture above </em>
<em>helps</em><em>.</em></h3>
18 = 4 × 4 + 4 −√4 = (44 ÷ √4) − 4
The appropriate price is
(150 ft)*(($0.15/in)*(12 in/ft)) = $270.00
Apparently, the factor (12 in/ft) was left out of the computation, so the charge was for $0.15 per foot.
a) The price was not correct. The correct price was $270.00
b) The mistake was charging by the foot rather than by the inch.
You have the correct approximate value of k. The part after that is where things get a bit strange.
You don't plug in t = 5 again. We don't know the value of t yet. We're trying to solve for it.
We do know u(t) is 135 as we want the temperature to be 135 degrees. Plug this in and isolate t.
So
u(t) = 70+380e^(-0.1004183888t)
135 = 70+380e^(-0.1004183888t)
135-70 = 380e^(-0.1004183888t)
65 = 380e^(-0.1004183888t)
380e^(-0.1004183888t) = 65
e^(-0.1004183888t) = 65/380
e^(-0.1004183888t) = 13/76
-0.1004183888t = ln(13/76)
-0.1004183888t = -1.7657839828248
t = -1.7657839828248/(-0.1004183888)
t = 17.5842692152893
So it takes about 17.58 minutes for the item to cool to the desired temp
