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jonny [76]
2 years ago
13

Write as a product: (2x+y)2–(x–2y)2

Mathematics
1 answer:
daser333 [38]2 years ago
8 0

(2x+y)^ - (x-2y)^

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

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

3x^ - 3y^ + 8xy , I believe ! I'm not 100% on this one though, sorry,!!

(^ is ^2 !!)

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A jogger ran 3 miles due east of his house. then he ran 5 miles at a heading of 30o east of north (or 30o ne). how far is he fro
Natasha_Volkova [10]

Magnitude of the net displacement: 7.0 miles

Step-by-step explanation:

In order to find the total displacement of the man, we have to resolve each displacement along the x- and y- direction.

Taking x as positive x direction and y as positive north direction:

- The first motion is 3 miles due east, so

A_x = 3 mi\\A_y = 0

- The second motion is 5 miles at 30^{\circ} east of north, so:

B_x = 5 sin 30^{\circ}=2.5 mi\\B_y = 5 cos 30^{\circ}=4.3 mi

So the components of the net displacement are

R_x = A_x + B_x = 3 + 2.5 = 5.5 mi\\R_y = A_y+B_y = 0 + 4.3 = 4.3 mi

And so the magnitude of the net displacement is

d=\sqrt{R_x^2+R_y^2}=\sqrt{5.5^2+4.3^2}=7.0 mi

So, he is 7.0 miles far from the house.

Learn more about distance and displacement:

brainly.com/question/3969582

#LearnwithBrainly

4 0
3 years ago
I need help please?!!!!
Neporo4naja [7]

Answer:

Yes.

Step-by-step explanation:

7 0
2 years ago
The length of a rectangle is 25
Flauer [41]
The width is 35in, the length is 95in
7 0
3 years ago
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devlian [24]

Answer:

sorry cant help

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
7) What is the slope-intercept form of this equation? Show all your work. 6x + 2y = 12​
mariarad [96]

Answer:

3

Step-by-step explanation:

6x+2y=12

2y=6x-12

y=6x/2- 12/2

y=3x-6

7 0
2 years ago
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