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Doss [256]
3 years ago
9

Select the product mentally.(r-s)^2

Mathematics
1 answer:
dusya [7]3 years ago
6 0

(r - s) ^{2} \\   =  {r}^{2}  +  {s}^{2}  - 2rs

First square and add the both terms one by one

You get

{r}^{2}  +  {s}^{2}

then multiply them to get( - 2rs)

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Solve the question below
mamaluj [8]

Answer: the scale factor is 2.5

Step-by-step explanation: hope it helps :)

7 0
3 years ago
What is the slope- intercept equation of the line that passes through(0,2) and (6,6)?
Vsevolod [243]

Answer:

y = 2/3x +2

Step-by-step explanation:

First we need to find the slope

m = (y2-y1)/(x2-x1)

    = (6-2)/(6-0)

    =4/6

   =2/3

The slope intercept form of the equation for a line is

y= mx+b

y =2/3 x +b

We know the y intercept is 2  (the y intercept is when x=0)

y = 2/3x +2

7 0
3 years ago
Read 2 more answers
-4x-2y=30<br> 1/3y=7/3x+5/3<br> we are supposed to use substitution when solving
seropon [69]

Answer:

The solution set is (-20/9, -95/9)

Step-by-step explanation:

To solve using the substitution method, start by solving the second equation for y.

1/3y = 7/3x + 5/3

y = 7x + 5

Now that we have this, we can plug it in for y in the first equation. Then we can solve for x.

-4x - 2(7x + 5) = 30

-4x - 14x - 10 = 30

-18x - 10 = 30

-18x = 40

x = -20/9

Now that we have the value of x, we can solve for y by inputting the x value into either equation.

-4x - 2y = 30

-4(-20/9) - 2y = 30

80/9 - 2y = 30

80/9 - 2y = 270/9

-2y = 190/9

y  = -95/9

4 0
3 years ago
Hey:) can you please help me posted picture of question
n200080 [17]
Use foil or the box method. I really like the box method super easy. Lmk if u don’t know how to do it and I’ll show you
4 0
3 years ago
Read 2 more answers
1.sarah is making her own halloween coustume. the costume requiers 2 5/8 yard of materials write the number of yards needed for
tigry1 [53]
2 5\8=2 x 8 +5=
answer=21\8
4 0
4 years ago
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