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3 years ago

Which is bigger 6400km or 4300000m? By know much? Explain your answer?

Mathematics

1 answer:

never [62]3 years ago

6 0

Answer:

6400km

Step-by-step explanation:

Because 4300000m = 4300km

6400 km > 4300 km

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Simplify this expression: (-2 - 8x) + (-4x - 10)

nevsk [136]

Answer:

The simplified form of expression<u> </u>(-2 - 8x) + (-4x - 10) is

-12(x + 1)

Step-by-step explanation:

It is given an expression (-2 - 8x) + (-4x - 10)

<u>To find the simplified expression of (-2 - 8x) + (-4x - 10)</u>

Let expression is given by

(-2 - 8x) + (-4x - 10) = -2 - 8x -4x -10

= -2 -10 -4x -8x

= -12 -12x

-12(x + 1) (since -12 is common in both terms)

Therefore simplified form is -12(x + 1)

5 0

3 years ago

Read 2 more answers

What are the missing operations?

Ronch [10]

Answer:

Solution in photo

Step-by-step explanation:

6 0

3 years ago

jennifer has started a blog and is using the bar chart below to keep track of how many followers she has, how many followers wil

Whitepunk [10]

If she is starting on day 1 with 0 followers and advances up 2 followers every day, by day "n" she would have 28 followers.

8 0

3 years ago

Let y′′′−9y′′+20y′=0. find all values of r such that y=erx satisfies the differential equation. if there is more than one correc

DerKrebs [107]

we are given

differential equation as

$y'''-9y''+20y'=0$

we are given

$y=e^{rx}$

Firstly, we will find y' , y'' and y'''

those are first , second and third derivative

First derivative is

$y'=re^{rx}$

Second derivative is

$y''=r*re^{rx}$

$y''=r^2e^{rx}$

Third derivative is

$y'''=r^2*re^{rx}$

$y'''=r^3e^{rx}$

now, we can plug these values into differential equation

and we get

$r^3 e^{rx}-9r^2 e^{rx}+20re^{rx}=0$

now, we can factor out common terms

$e^{rx}(r^3 -9r^2 +20r)=0$

we can move that term on right side

$(r^3 -9r^2 +20r)=0$

now, we can factor out

$r(r^2 -9r +20)=0$

$r(r-5)(r-4)=0$

now, we can set them equal

$r=0$

$r-5=0$

$r=5$

$r-4=0$

$r=4$

so, we will get

$r=0,4,5$ ...............Answer

4 0

4 years ago

Please help! I cant afford to fail.. PLEASE NO LINKS

vova2212 [387]

Answer: The answer that I got was J.

7 0

3 years ago