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Yuri [45]
3 years ago
15

Use complete sentences to explain how to easily find the expansion of (x + 2)^39.

Mathematics
1 answer:
ValentinkaMS [17]3 years ago
8 0
You would take (x+2)'39 and raise to the 39 then × 39 to x+2 and then you would get your answer
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What point on the line y=9x+8 is closest to the origin
Marat540 [252]

to find the point, find the location

realize that the shortest line that crosses through the origin and y=9x+8 is perpendicular to y=9x+8

perpendicular lines have slopes that multiply to get -1

y=9x+8 has a slope of 9

9*m=-1, m=-1/9

the slope of the mystery line is -1/9

since it passes through the origin, the y intercept is 0

y=(-1/9)x is the equation of the line from the point to the origin

find the intersection of this line and the original line

set them equal to each other

(-1/9)x=9x+8

multily both sides by 9

-x=81x+72

minus 81 both sides

-82x=72

divide both sides by -82

x=-36/41

find y

y=(-1/9)x

y=(-1/9)(-36/41)

y=4/41

the point is (\frac{-36}{41},\frac{4}{41})

3 0
3 years ago
Pls help i dont get how to do this
Lorico [155]

Step-by-step explanation:

What this is saying is...20 is a whole number; but 3/4 is not. What they are saying is, if you have to add a mixed number with a whole number, you can add both of the whole numbers together. Then, you add the 3/4 at the end...because it is not a whole number. You can break apart a mixed number by separating the whole number and the fraction.

Hope this helps :)

3 0
3 years ago
10 m<br> 8 m<br> 6.2 m<br> 8 m<br> What’s the area
hjlf

Answer:

what's the shape? that's important to

8 0
3 years ago
Help i’ll give Brain :(
vesna_86 [32]

Answer:

1, 4 and 5

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
13. Given the volume, V, of the rectangular prism below, find h, the height of the prism. V = (x ^ 2 + 2x)/(x + 1) l= 2x + 4 w=
NikAS [45]

Given:

Volume of a rectangular prism is:

V=\dfrac{x^2+2x}{x+1}

Dimensions of the rectangular prism are:

l=2x+4

w=\dfrac{x}{8}

To find:

The height of the rectangular prism.

Solution:

The volume of a rectangular prism is:

V=l\times w\times h

After substituting the values, we get

\dfrac{x^2+2x}{x+1}=(2x+4)\times \dfrac{x}{8}\times h

\dfrac{x(x+2)}{x+1}=\dfrac{2x(x+2)}{8}\times h

\dfrac{x(x+2)}{x+1}\times \dfrac{8}{2x(x+2)}=h

\dfrac{1}{x+1}\times \dfrac{8}{2}=h

\dfrac{4}{x+1}=h

Therefore, the correct option is C.

8 0
3 years ago
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