Which equation represents the graphed function?

Mathematics

2 answers:

Andrews [41]1 year ago

5 0

The answer is C, that’s because blah blah blah guy on top is correct I just want 5 points ily

taurus [48]1 year ago

3 0

Hello, the answer should be $y=1/4(x)-2$

Detailed solution is given in the photo. We need to find the slope of the line. We found the slope by drawing a right triangle. Then, we got the result by substituting two different points in the equation. Good luck!

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Charles has 24 marbles. He has 6 more marbles than blue marbles. Which equation represents this situation.

statuscvo [17]

Answer:

n + (n + 6) = 24.

Step-by-step explanation:

Let him have n blue marbles, then he has n + 6 other narbles.

He has a total of 24 marbles, so:

n + (n + 6) = 24.

8 0

2 years ago

Read 2 more answers

(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:

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