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2 years ago

5

Someone help please i don’t want to fail math

1 answer:

VladimirAG [237]2 years ago

5 0

Answer:

Image below!

Step-by-step explanation:

<u>Plotting </u> $\underline{y=2x+3}$ <u />

Step 1: determine the y-intercept

$(0,3)$

plot the point as the first point on the graph

Step 2: Move 2 units up, and 1 unit left (keep repeating this process until you have reached the limit of the graph)

Step 3: Go to the other side of the graph of the first point (y-intercept)

move 2 units down, and 1 unit right keep repeating this process until you have reached the limit of the graph)

<em>When you've completed this process, it should look like this:</em>

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First change to standard form of first order linear differential equation and then by finding the appropriate integrating factor

Leokris [45]

Answer:

Step-by-step explanation:

Given is a Differential equation as

$xy' + y = lnx ; y(e)=1$

To bring it to linear form we can divide the full equation by x

$y'+\frac{y}{x} =\frac{ln x}{x}$

This is of the form

y'+p(x) *y = q(x)

p(x) = 1/x

So find

$e^{\int\limits{\frac{1}{x} } \, dx } = e^{ln x} = x$

Solution is

$xy = \int {x*lnx /x } \, dx =xln x -x +C$

Use the initial value as y(e) =1

$e= eln e -e+C\\C=e$

So solution is

$xy =xln x -x+e$

5 0

4 years ago

HELP PLS I WILL MARK BRAINLIEST ANSWER ASAP HELP PLEASE!!!

hodyreva [135]

Answer:

hope this helps you

4 0

4 years ago

You drive 132 miles in 3 hours. At

yarga [219]

Answer and Step-by-step explanation:

To solve, we need to find how many miles are driven in an hour.

<u>Divide 132 by 3.</u>

132/3 = 44

<u>Now, we need to find how many hours it would take to drive 110 miles.</u>

$\frac{44 miles}{1 hour} = \frac{110 miles}{? hours} \\\\$

<u>Cross multiply.</u>

<u /> $44(?) = 110$ <u />

<u>Divide by 44.</u>

<u /> $? hours = 2.5 hours$ <u />

<u />

<u>So, it would take 2.5 hours to drive 110 miles.</u>

<em><u /></em>

<em><u /></em>

<em><u>#teamtrees #PAW (Plant And Water)</u></em>

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7 0

3 years ago

Explain how to obtain the equation 3x=6 from the given system <br><br><br> 2x+y=5<br> x-y=1

Rudiy27

Answer:

Adding the 2 equations.

Step-by-step explanation:

Add the two equations:

2x+y+(x-y)=5+1

2x+x+y-y=6

3x=6

4 0

3 years ago

Help me please! will mark brainliest for the correct answer

IceJOKER [234]

Answer:

see explanation

Step-by-step explanation:

Using the rules of exponents

$a^{m}$ × $a^{n}$ ⇔ $a^{(m+n)}$

$(a^m)^{n}$ = $a^{mn}$

$a^{-m}$ ⇔ $\frac{1}{a^{m} }$

Thus

$4^{3x-2}$

= $4^{3x}$ × $4^{-2}$

= $(4^3)^{x}$ × $4^{-2}$

= $64^{x}$ × $\frac{1}{4^2}$

= $\frac{64^{x} }{16}$ ← as required

4 0

3 years ago