2 years ago

Help please, totally don't know the answer to this.

Mathematics

2 answers:

Elenna [48]2 years ago

8 0

Answer:

5 shirts

Step-by-step explanation:

30.60 / 6.12 = 5

MariettaO [177]2 years ago

5 0

5 shirts because $6.12 x 5 gives you $30.60

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AlekseyPX

The numbers are 15, 17 and 19

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2 years ago

If the last digit of a number is 0 or 5, then the number is divisible by 10. True False

Whitepunk [10]

Answer:

False

Step-by-step explanation:

15 isn't divisible by 10

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3 years ago

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A 120-pound person uses 3 calories per minute walking at a 20 min/mile pace. approximately, how many miles would a person have t

lora16 [44]

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4 years ago

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Consider the differential equation: xy′(x2+7)y=cos(x)+e3xy. Put the differential equation into the form: y′+p(x)y=g(x), determin

icang [17]

Answer:

Linear and non-homogeneous.

Step-by-step explanation:

We are given that

$\frac{xy'}{(x^2+7)y}=cosx+\frac{e^{3x}}{y}$

We have to convert into y'+P(x)y=g(x) and determine P(x) and g(x).

We have also find type of differential equation.

$y'=\frac{(x^2+7)y}{x}(cosx+\frac{e^{3x}}{y}}$

$y'=\frac{(x^2+7)cosx}{x}y+\frac{(x^2+7)e^{3x}}{x}$

$y'-\frac{cosx(x^2+7)}{x}y=\frac{e^{3x}(x^2+7)}{x}$

It is linear differential equation because this equation is of the form

y'+P(x)y=g(x)

Compare it with first order first degree linear differential equation

$y'+P(x)y=g(x)$

$P(x)=-\frac{cosx (x^2+7)}{x},g(x)=\frac{e^{3x}(x^2+7)}{x}$

$\frac{dy}{dx}=\frac{(x^2+7)(ycosx+e^{3x})}{x}$

Homogeneous equation

$\frac{dy}{dx}=\frac{f(x,y)}{g(x,y)}$

Degree of f and g are same.

$f(x,y)=(x^2+7)(ycosx+e^{3x}),g(x,y)=x$

Degree of f and g are not same .

Therefore, it is non- homogeneous .

Linear and non-homogeneous.

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3 years ago

R these correct? Miles per hour transferred to kilometers per hour, show ur work and explain, thanks

Arlecino [84]

They are correct (if rounded up)

Newberry park: 16.0934km

Thousand Oaks: 20.9215km

Los Angeles: 88.5139km

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4 years ago