Answer:
125.7
I got this one right on my test yesterday :)
Answer:
22.5 or 22 1/2 yards
Step-by-step explanation:
71.50 + 52.25 = 123.75
123.75 ÷ 5.50 = 22.5
Answer:
d
Step-by-step explanation:
A) You want to find t such that
.. C(t) = d
.. d = 20 +60*0.95^t
.. (d -20)/60 = 0.95^t
.. log((d -20)/60) = t*log(0.95)
.. t = log((d -20)/60)/log(0.95) . . . . . . time to cool to d degrees (d > 20)
b) C'(t) = 60*0.95^t*ln(0.95)
.. C'(1) = 60*0.95*ln(0.95) ≈ -2.924 °C/min
