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3 years ago

Please help me with this question!!

Mathematics

2 answers:

Verdich [7]3 years ago

8 0

Answer:

y is 8

Step-by-step explanation:

since this is a 30 60 90 triangle side a is x sqrt3 side b (which is y) is x and side c is 2x. since side c is 16 you divide by two or 16/2x and find x which 8 and since x is 8 and c is two times side b ur answer is 8 my friend

xxTIMURxx [149]3 years ago

5 0

Y is 8
Answer
I don’t feel like explaining

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Answer:

Step-by-step explanation:

Given

at 9 am temperature of the body is $90.3^{\circ}F$

1 hr later temperature $89^{\circ}F$

Temperature of room $T=68^{\circ}F$

According to newtons law

$\frac{\mathrm{d} T}{\mathrm{d} t}=-k\left ( T-T_{room}\right )$

$\frac{\mathrm{d} T}{\mathrm{d} t}=-k\left ( T-68\right )$

$\frac{dT}{T-68}=-kdt$

Integrating

$=\int \frac{dT}{T-68}=-kdt$

$\ln |T-68|=-kt+c$

$T-68=Ae^{-kt}$

Now at 9 am i.e. t=0,

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$A=22.3$

At 10 am i.e. t=1 hr T=89

$89-68=22.3e^{-k}$

$e^{-k}=21$

$k=0.06006$

Temperature of Normal human body is $T=98.6 ^{\circ}F$

$98.6-68=e^{-0.06006t}$

$30.6=e^{-0.06006t}$

Taking log both sides

$t=-5.27$

i.e. 5 hr and 16.2 min

i.e. victim murdered at 3 am and 43.8 min

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Read 2 more answers

PLEASE SOMEONE HELP ME

borishaifa [10]

Answer:

use a perimeter calculator if you want to for me using a calcultor is pretty uch illegal in my head and it diesnt help e on bit and use one only if you need to thus I wouldn'tknow your answer and I can't use a calculator as I don't really need it sorry.

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