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2 years ago

NEED HELP ASAP!!!!!!!!

Mathematics

1 answer:

Zolol [24]2 years ago

5 0

Answer:

x = 2.4

y = 31

Step-by-step explanation:

Angle B = 25x

BC = 31

therefore , this is an equilateral triangle all sides and angles are equal,

25x =60

x = 2.4

BC = BA = AC

y= 31

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1 year ago

What is the range of y = (x - 5)^2 – 1?

Setler79 [48]

1. The graph is a parabola.

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2 years ago

(1 point) Newton's law of cooling states that the temperature of an object changes at a rate proportional to the difference betw

slavikrds [6]

Answer:

a. $\frac{dT}{dt}=k(T-Tm); T(0)=190$

b. $C_{0}=122$

c. $k=-0.00259$

d. $t=153.39838\\$ minutos

Step-by-step explanation:

a. Newton's law of cooling states that the speed with which a body is cooled is proportional to the difference between its temperature and that of the medium in which it is found. Then, the initial value problem is given by:

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c. After 33 minutes of serving the coffee has cooled to 180°:

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$150=122e^{-0.00259t}+68\\\\Ln(\frac{150-68}{122})=-0.00259t\\\\t=153.39838\\\\$

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3 years ago

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Helga [31]

You just need to use your test-taking skill to eliminate the wrong answers here.

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3 years ago

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