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3 years ago

Solve for X PLEASE HELP!!

Mathematics

1 answer:

tester [92]3 years ago

3 0

U set ST and SR equal
7x + 24 = 115
7x = 91
x = 13

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Find the general solution of (x+3)y’=2y

gregori [183]

Answer:

$y=C(x+3)^2$

Step-by-step explanation:

We are given:

$\displaystyle (x+3)y^\prime=2y$

Separation of Variables:

$\displaystyle \frac{1}{y}\frac{dy}{dx}=\frac{2}{x+3}$

So:

$\displaystyle \frac{dy}{y}=\frac{2}{x+3} \, dx$

Integrate:

$\displaystyle \int\frac{dy}{y}=\int\frac{2}{x+3}\, dx$

Integrate:

$\displaystyle \ln|y|=2\ln|x+3|+C$

Raise both sides to e:

$|y|=e^{2\ln|x+3|+C}$

Simplify:

$|y|=(e^{\ln|x+3|})^2\cdot e^C$

So:

$|y|=C|x+3|^2$

Simplify:

$y=\pm C(x+3)^2=C(x+3)^2$

5 0

3 years ago

Neil took his family of five out to dinner at HogTastic Pit BBQ. They all ordered the buffet and drink at $12.80 each. Neil left

adoni [48]

The answer for your problem would be $64.225
there it is your answer

6 0

3 years ago

A function is shown below

Scrat [10]

Answer:

Step-by-step explanation:

Put input value instead of the x into equation and calculate the output:

y = -5x - 7

x = -4, then find the value of y:

y = -5(-4) - 7 = 20 - 7 = 13

The output is 13 when the input is -4

6 0

2 years ago

Read 2 more answers

Find the domain of the function f(x) = 7x2 + 8x - 15.

amm1812

Answer:

Domain is all real numbers or (negative infinity, positive infinity)

Step-by-step explanation:

Domain is all values of x (inputs) that will work with the function. Since a parabola has no limits for x, and all numbers work for x, then the domain can be any number. That leaves us with All Real Numbers as our answer.

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3 years ago

Archaeologists can determine the diets of ancient civilizations by measuring the ratio of carbon-13 to carbon-12 in bones found

harkovskaia [24]

Answer:

yessirrr

Step-by-step explanation:

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3 years ago