Type the correct answer in each box.

Mathematics

1 answer:

Ivahew [28]2 years ago

6 0

Answer:

Across x-axis = (-4, 2) across y-

axis = (4, -2)

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Which of the following factors could explain why Dellva Energy had a negative net cash flow last year, even though the cash on i

Dvinal [7]

Answer:

The company sold a new issue of bonds.

Step-by-step explanation:

A new issue of bonds is commonly known as a process or a way by which companies try to acquire a substantial amount of money via bonds selling in a typical bond market. The company, in this case, recorded a negative net cash flow in its balance sheet even with an increase in cash flow because it sold a new issue of bonds.

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(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:

$Tm=68$

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

b. The differential equation obtained is a differential equation of separable variables:

$\frac{dT}{T-Tm}=kdt\\\\\int {\frac{dT}{T-Tm}}=\int{kdt}\\\\Ln|T-Tm|=kt+C\\\\T(t)=C_{0}e^{kt}+Tm=C_{0}e^{kt}+68\\\\T(0)=C_{0}e^{k(0)}+68=190\\\\C_{0}=122$