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guapka [62]
4 years ago
15

Expand (x+2y)^2 plzzzzzzzz​

Mathematics
1 answer:
deff fn [24]4 years ago
8 0
(x + 2y) ^2

(x + 2y) (x + 2y)

x^2 + 2xy + 2xy + 4y^2

= x^2 + 4xy + 4y^2
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Im gonna sleep after this but for now Help ^^
Margaret [11]

Answer:

Both prisms have the same volume.

Step-by-step explanation:

<u>Volume of Naomi's Prism:</u>

5 x 2 x 14 = 140cm^3

<u>Volume of Ben's Prism</u><u>:</u>

(5 x 4) / 2 x 14 = 10 x 14 = 140cm^3

They therefore have the same volume.

7 0
2 years ago
Read 2 more answers
What is an equation of the line that passes through the points (0, -4) and (-4, 6)?
olganol [36]

Answer:

The equation of the line is.

y=-\frac{5}{2}x-4

Step-by-step explanation:

Given:

The given points are (0, -4) and (-4, 6)

The equation of the line passing through the points (x_{1},y_{1}) and (x_{2},y_{2}) is.

\frac{x-x_{1}}{x_{2}-x_{1}}=\frac{y-y_{1}}{y_{2}-y_{1}}

Thus, the equation of the line that passes through the points (0, -4) and (-4, 6) is

\frac{x-0}{(-4)-0}=\frac{y-(-4)}{6-(-4)}

\frac{x}{-4}=\frac{y+4}{6+4}

-\frac{x}{4}=\frac{y+4}{10}

-\frac{10x}{4}=y+4

-10x=4(y+4)

-10x=4y+16

4y=-10x-16

The above equation is divided by 2 both sides.

2y=-5x-8

y=-\frac{5}{2}x-4

Therefore, the equation of the line that passes through the points (0, -4) and (-4, 6) is y=-\frac{5}{2}x-4

8 0
3 years ago
What’s the slope of this graph? Can y’all guys help please ! Thank y’all
Anvisha [2.4K]

Answer:

3

Step-by-step explanation:

we can think of the <em>slope</em> of a graph as \frac{rise}{run}

the "rise" is the difference in y-values between two points (the change in y)

the "run" is the difference in x-values between two points (the change in x)

when we divide these (rise/run), we find the slope

you can choose any two well-defined points (with clear x and y values), here are the two we will be using:

(remember, points are written as (x, y)  )  

(0 , 2)

(-1 , -1)

for the "rise", we have risen 3 (difference between 2 and -1 = 3 [2- -1 = 3] )

for the "run" we have ran 1 (difference between 0 and -1 = 1) (0 - - 1 = 1)

so, the slope for this graph is: 3/1 ; which simplifies to 3

So, the slope of our graph is 3

<em>--------------------------------------------------------------</em>

<em>technical layout:</em>

<em />

m=\frac{y_{2} -y_{1}}{x_{2}-x_{1}}               (note: slope is called "m" in the format of y=mx + b)

y_{1} means one y-value, y_{2} means other y-value

x_{1} means one y-value, x_{2} means other x-value

{note: it is important to keep the y1 and x1 from the same point, and the y2 and x2 from a shared point}

our equation in this layout:

m=\frac{2 -(-1)}{0-(-1)} = m=\frac{3}{1}

                     m = 3

6 0
2 years ago
24.39 is 9% of what number..........................
Zinaida [17]

Answer:

271

9 percent (calculated percentage %) of what number equals 24.39? Answer: 271.

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Does anyone know the answer???
GaryK [48]

Answer:the answer would be B

Step-by-step explanation:

the operation is +

6 0
4 years ago
Read 2 more answers
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