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3 years ago

13

Write a numerical expression to match the word expression. ) Two less than one-third of the product of nine fourths and twelve 1

2 1 3 2 alt ( x 12) 4

1 answer:

avanturin [10]3 years ago

8 0

Answer: $\frac{1}{3} ((\frac{9}{4})(12))-2$

Step-by-step explanation:

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Find gradient <br><br>xe^y + 4 ln y = x² at (1, 1)

cricket20 [7]

$xe^y+4\ln y=x^2$

Differentiate both sides with respect to <em>x</em>, assuming <em>y</em> = <em>y</em>(<em>x</em>).

$\dfrac{\mathrm d(xe^y+4\ln y)}{\mathrm dx}=\dfrac{\mathrm d(x^2)}{\mathrm dx}$

$\dfrac{\mathrm d(xe^y)}{\mathrm dx}+\dfrac{\mathrm d(4\ln y)}{\mathrm dx}=2x$

$\dfrac{\mathrm d(x)}{\mathrm dx}e^y+x\dfrac{\mathrm d(e^y)}{\mathrm dx}+\dfrac4y\dfrac{\mathrm dy}{\mathrm dx}=2x$

$e^y+xe^y\dfrac{\mathrm dy}{\mathrm dx}+\dfrac4y\dfrac{\mathrm dy}{\mathrm dx}=2x$

Solve for d<em>y</em>/d<em>x</em> :

$e^y+\left(xe^y+\dfrac4y\right)\dfrac{\mathrm dy}{\mathrm dx}=2x$

$\left(xe^y+\dfrac4y\right)\dfrac{\mathrm dy}{\mathrm dx}=2x-e^y$

$\dfrac{\mathrm dy}{\mathrm dx}=\dfrac{2x-e^y}{xe^y+\frac4y}$

If <em>y</em> ≠ 0, we can write

$\dfrac{\mathrm dy}{\mathrm dx}=\dfrac{2xy-ye^y}{xye^y+4}$

At the point (1, 1), the derivative is

$\dfrac{\mathrm dy}{\mathrm dx}\bigg|_{x=1,y=1}=\boxed{\dfrac{2-e}{e+4}}$

4 0

3 years ago

The value of a baseball card can be represented by the equation Y - 3x439, where x represents the number of years

kobusy [5.1K]

Answer:

1047 cards

Step-by-step explanation:

3x349=1047 3x300=900 3x40=120 3x9=27 900+120+27=1047

6 0

3 years ago

Read 2 more answers

Cant figure how to answer this

Aleksandr-060686 [28]

Answer:

-5(2) (-2) +2 + 4(-2) +7 = 21

-4(2) -2(-2) -10 = -14

21/14 = -1.5 or -1 1/2

4 0

3 years ago

7 x (-2) = ? * what’s the answer

Karolina [17]

Hey there!

<h3>Guide: </h3>

Negative & negative = positive
Positive & negative = negative
Positive & positive = positive
Negative & positive = negative

<h3>So, far <u>in your particular question we’re doing</u> <u>positive</u> (7) <u>&</u> <u>negative</u> (-2) so <u>that means your</u> <u>result will most likely be a negative </u></h3><h3 />

<em>Now let’s answer your question, shall we </em>

<h2>7 • (-2) =<em><u> -14</u></em> </h2>

Good luck on your assignment and enjoy your day!

~LoveYourselfFirst:)

3 0

3 years ago

(80 + 240 times 3) ÷ 20<br><br> Solve the equation

shutvik [7]

240x3= 720

720+80 = 800

800/20= 40

The answer is 40.

Tell me if this helps
Please mark me as brainliest

8 0

2 years ago