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3 years ago

Find dy/dx (derivative) using Implicit Differentiation: xe^y=x-y

1 answer:

6 0

D (xe^y)/dx = d(x - y)dx
(e^y)dx/dx + xd(e^y)/dx = 1 - y'
e^y + xy'e^y = 1 - y'
(1 + xe^y)y' = 1 - e^y
y' = (1 - e^y)/(1 + xe^y)

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Am i right im not sure please help

cluponka [151]

Yes, absolutely! You have correctly identified a good line of best fit and found a point that matches with the 450 thousand. Good job!

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4 years ago

Rosalina just started a new job. She has $500 in her bank account. Every week, she deposits $40 into her bank account. Write an

Mrrafil [7]

Answer:

10.14 years

Step-by-step explanation:

The following equation describes the percentage of all eligible voters that are registered to vote as a function of time:

V=100-30e^{-0.04t}

The time 't' for which V(t) = 80 is the amount of years required for the percentage of registered voters to reach 80%:

80=100-30e^{-0.04t}\\\frac{20}{30}= e^{-0.04t}\\ln(\frac{2}{3})=-0.04t*ln(e)\\ t=10.14\ years

It will take 10.14 years until 80% of all eligible voters in your county are registered to vote

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3 years ago

Read 2 more answers

Which of the following p-values will lead us to reject the null hypothesis if thelevel of significance equals 0.05?a.0.15b.0.10c

Ipatiy [6.2K]

Answer: 0.025

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3 years ago

Find the value of . X 100° Y 130° x 66° w Z

Mice21 [21]

Answer:

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2 years ago

Please help me please! Also, please show your work image shown below in attachment

WINSTONCH [101]

Answer:

see below

Step-by-step explanation:

some of your answers that you currently have are wrong, I'll note those mistakes below

- when factoring (ie 5x+15) only factor out things that can divide both numbers into a whole number ratio

5x+15 = 5(x+3), not (x+3)(x+5)

ie $\frac{10x^2+20x}{x+2}$

we see that 10x can divide the numerator in a whole number ratio

$10x^2+20x$ = 10x(x+2), not (x+2)(x+10)

second mistake: the first binomial expansion is incorrect.

you have the expansion formula right, but you added terms wrong, go look at it again

3. x^2+3x+2/ x^2+5x+6

(x+1)(x+2)/(x+3)(x+2)

(x+1)/(x+3)

4. (x^2+6x+8)/(x^2-16)

(x+4)(x+2)/(x+4)(x-4)

(x+2)/(x-4)

5. we can't simplify that any more, x and y are different variables so therefore we cannot cross out stuff on numerator and denominator

6. (x^4y^6)^2

(x^4y^6)(x^4y^6) = $x^8y^{12}$

remember that (x^a)(x^b) = x^(a+b)

or remember that (x^a)^b = x^ab

6 0

3 years ago