Answer:
multiply by 5
Step-by-step explanation:
in order to get t by itself, you must do the incerverse operation of division, which is multiplication
5(t/5)=5(2.9)
the 5 crosses out and you get
t=14.5
Answer:
i cant see it
Step-by-step explanation:
Answer:
Step-by-step explanation:
The desired formula parameters for Newton's Law of Cooling can be found from the given data. Then the completed formula can be used to find the temperature at the specified time.
__
<h3>Given:</h3>

<h3>Find:</h3>
k
T(4)
<h3>Solution:</h3>
Filling in the given numbers, we have ...
185 = 68 +(208 -68)e^(-k·3)
117/140 = e^(-3k) . . . . . subtract 68, divide by 140
ln(117/140) = -3k . . . . . . take natural logarithms
k = ln(117/140)/-3 ≈ 0.060
__
The temperature after 4 minutes is about ...
T(4) = 68 +140e^(-0.060·4) ≈ 68 +140·0.787186
T(4) ≈ 178.205
After 4 minutes, the final temperature is about 178 °F.
Answer:
13.008 or 13 1/125 or 1626/125
Step-by-step explanation:
The length of UV is 11.
Solution:
UV = 2x - 13
VW = -18 + 2x
UW = 17
UV + VW = UW
2x - 13 - 18 + 2x = 17
4x - 31 = 17
Add 31 on both sides.
4x - 31 + 31 = 17 + 31
4x = 48
Divide by 4 on both sides.

x = 12
UV = 2x - 13
= 2(12) - 13
= 24 - 13
UV = 11
The length of UV is 11.