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murzikaleks [220]
3 years ago
14

Which expressions are equivalent to x+2y+x+2 2(x+y+1) 2x+4y+y none of the above

Mathematics
1 answer:
Setler79 [48]3 years ago
4 0
Hey there!

Keep in mind that x+2y+x+2 is the same thing as 2x+2y+2, since you can add 1x and 1x together to get 2x at the beginning of your expression. 

Now, take a look at your answer choices:

2(x+y+1)

If you use the distributive property on this (which you do by multiplying 2 by each term in your trinomial), you will get the following:

(2)(x) = 2x
(2)(y) = 2y
(2)(1) = 2

2x + 2y + 2

This means that your first answer choice is equivalent. 

Let's take a look at your second answer choice: 

2x+4y+y

You can simplify this by adding together your like terms, which is the y term:

2x+5y

This is not equivalent, so your answer will be your first option only. 

Hope this helped you out! :-)
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A cylinder has a base diameter of 20 meters and a height of 10 meters. What is it’s volume in cubic meters, to the nearest tenth
Korvikt [17]

3141.6 cubic meters

Step-by-step explanation:

The volume of a cylinder is given by;

πr²h

π * (²⁰/₂)² * 10

π * 100 * 10

= 3141.6

4 0
3 years ago
Answer ^^<br><br> super ez<br><br> lol
Alla [95]

low,low

low, high

high,high

6 0
3 years ago
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Tim wants to ride his bike for 25 miles or less on some mountains bike trails . The table shows the distance of three different
Basile [38]

yo sup??

the sum of trails taken should be less than 25 miles

Black bear=B

Eagle Ridge=E

Doe Run=D

(btw names sound cool XD)

we will now try different combinations

B+E=7 1/2 ++ 10 1/4 which is clearly less than 25

B+D=7 1/2 + 8 3/4 which also less than 25

E+D=10 1/4 + 8 3/4 which is also less than 25

B+D+E=7 1/2 + 10 1/4 + 8 3/4 which is greater than 25

Therefore only the 1st,2nd and 3rd case are possible

Hope this helps.

7 0
3 years ago
Help please! I need answers quickly :((
Rzqust [24]

Answer:

y = - \frac{1}{2} x + 2

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Calculate m using the slope formula

m = (y₂ - y₁ ) / (x₂ - x₁ )

with (x₁, y₁ ) = (0, 2) and (x₂, y₂ ) = (4, 0) ← 2 points on the line

m = \frac{0-2}{4-0} = \frac{-2}{4} = - \frac{1}{2}

The line crosses the y- axis at (0, 2) ⇒ c = 2

y = - \frac{1}{2} x + 2 ← equation of line

5 0
3 years ago
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Could you please help ​
abruzzese [7]
The answer is 9, a square has 4 equal sides so you do 36 divided by 4 and you get 9
3 0
2 years ago
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