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3 years ago

Find DF D 20 E 10 F DF =

Mathematics

2 answers:

vichka [17]3 years ago

8 0

Answer:

Step-by-step explanation:

it is right

erastovalidia [21]3 years ago

5 0

It’s 30!

bc DE is 20 and EF is 10, if DF is the entire segment, then you would add 20 & 10, to get 30.

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Two automobiles start together from the same place and travel along the same route. The first averages 40 miles

natita [175]

Answer:

A. (55 x 5) - (40 x 5)

Step-by-step explanation:

You are solving how much miles (further along) would the second car be after 5 hours.

The first car averages 40 miles per hour. 5 hours later, it will have averaged about 200 miles in 5 hours (40 x 5 = 200).

The second car averages 55 miles per hour. 5 hours later, it will have averaged about 275 miles in 5 hours (55 x 5 = 275)

Subtract: 275 - 200 = 75

The second car would have averaged 75 more miles than the first car.

4 0

3 years ago

Read 2 more answers

Help me plz i dont get it its alot ill mark brainliest

Tanzania [10]

Answer:

I CANT SEE IT sorry caops

Step-by-step explanation:

if i could see i could answer

7 0

3 years ago

7^1 in expanded form

In-s [12.5K]

Step-by-step explanation:

${7}^{1} = 7 \times 1 \\ = 7$

8 0

3 years ago

If you ate 1/3 of a pie that is 5/6 how much pie is left

siniylev [52]

Answer: <em>~subtract 1/3 - 5/6 = 4/3 but tats a improper fraction so then you need to simplify and there is your answer 3/4 simple i hope this helped have a nice day (❁´◡`❁)~</em>

Step-by-step explanation:

if you ate 1/3 of a pie that is 5/6 how much pie is left?

5 0

2 years ago

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.

3 0

3 years ago