2 years ago

Please answer this im dying here

Mathematics

2 answers:

lara [203]2 years ago

4 0

$t\geq-273\\\\
358=20\sqrt{273+t}\\
17.9=\sqrt{273+t}\\
320.41=273+t\\
t=47.41\approx47$

kherson [118]2 years ago

3 0

$v=20\sqrt{273+t};\ t > 0$
We have
$v=358\ m/s$
substitute
$20\sqrt{273+t}=358\ \ \ |:20\\\\\sqrt{273+t}=17.9\ \ \ |square\ both\ sides\\\\273+t=320.41\ \ \ \ |-273\\\\t=47.41\approx47$
Answer: 47°C

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