2 years ago

14 is 40% of ___? Or what is 14 40% of

Mathematics

1 answer:

kondaur [170]2 years ago

8 0

Answer:

Step-by-step explanation:

14÷4=3.5

40÷4=10

3.5x10=35

10x10=100

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Find an explicit solution to the Bernoulli equation. y'-1/3 y = 1/3 xe^xln(x)y^-2

NNADVOKAT [17]

$y'-\dfrac13y=\dfrac13xe^x\ln x\,y^{-2}$

Divide both sides by $\dfrac13y^{-2}(x)$ :

$3y^2y'-y^3=xe^x\ln x$

Substitute $v(x)=y(x)^3$ , so that $v'(x)=3y(x)^2y'(x)$ .

$v'-v=xe^x\ln x$

Multiply both sides by $e^{-x}$ :

$e^{-x}v'-e^{-x}v=x\ln x$

The left side can be condensed into the derivative of a product.

$(e^{-x}v)'=x\ln x$

Integrate both sides to get

$e^{-x}v=\dfrac12x^2\ln x-\dfrac14x^2+C$

Solve for $v(x)$ :

$v=\dfrac12x^2e^x\ln x-\dfrac14x^2e^x+Ce^x$

Solve for $y(x)$ :

$y^3=\dfrac12x^2e^x\ln x-\dfrac14x^2e^x+Ce^x$

$\implies\boxed{y(x)=\sqrt[3]{\dfrac14x^2e^x(2\ln x-1)+Ce^x}}$

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2 years ago

What is the value of y?

sergij07 [2.7K]

Find TU with Pythagorean theorem:
TU=√6²-3²=√36-9=√27=3√3
Now you can find y:
y=√TU²+9²=√27+81=√108=6√3

3 0

2 years ago

What is 3 1/3 x 2 1/4 ?

vfiekz [6]

$3 \frac{1}{3} \times 2 \frac{1}{4} \\ = \frac{(3 \times 3) + 1}{3} \times \frac{(2 \times 4) + 1}{4} \\ = \frac{9 + 1}{3} \times \frac{8 + 1}{4} \\ = \frac{10}{3} \times \frac{9}{4} \\ = \frac{90}{12} \\ = \frac{15}{2}$
The answer is 15/2 = 7.5

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2 years ago

Read 2 more answers

Kelly jarred 30 liters of jam after 8 days. What is the unit rate? Pleasee help

zepelin [54]

Answer:

3.75 liters a day

Step-by-step explanation:

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2 years ago

Your car averages 380 miles on a 14-gallon tank of gas. You run out of gas on a deserted highway, but have One-half gallon of la

Kamila [148]

Answer:

380/14= 27.14 miles per gallon

27.14/2=13.57 miles

they wont reach the gas station

Step-by-step explanation:

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2 years ago