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Doss [256]
3 years ago
8

Write the trinomial as a square of a binomial x^2+2xy+y^2

Mathematics
2 answers:
vitfil [10]3 years ago
3 0

Answer:

\large\boxed{x^2+2xy+y^2=(x+y)^2}

Step-by-step explanation:

(x+y)^2=(x+y)(x+y)\\\\\text{Use FOIL}\ (a+b)(c+d)=ac+ad+bc+bd\\\\=(x)(x)+(x)(y)+(y)(x)+(y)(y)=x^2+xy+xy+y^2=x^2+2xy+y^2

bixtya [17]3 years ago
3 0

Answer:

6

1

38

Step-by-step explanation:

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If a line of type measures 5 inches (12.5 centimeters) in length, how many picas long is it
Kryger [21]
It would be 30 picas

6 0
3 years ago
−5a – ( 6a + 3) + 8}<br> plz help show step by step
Rom4ik [11]

Answer:

11a+5

Step-by-step explanation:

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5 0
2 years ago
Find the slope given these points (0,5) &amp; (6,2)
andrezito [222]

Answer:

m= -1/2

Explanation:

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5 0
3 years ago
Which could be the first step in solving this system of equations by substitution?
Ainat [17]

Answer:

The first step is to replace the y in y-x=15 with 7x (we can do this because the first equation tells us that they're equal)

solve and get

(2.5,17.5)

or x= 2.5 y=17.5

Step-by-step explanation:

The first step is to recognize that y=7x which means that we can just replace the y in the second equation with 7x

7x-x=15

6x=15

x=2.5

Then we can solve for y

y=7(2.5)

y=17.5

3 0
2 years ago
A bicycle store costs ​$2250 per month to operate. The store pays an average of ​$40 per bike. The average selling price of each
lesantik [10]

Answer:

75

Step-by-step explanation:

Given That :

Operation cost = $2250 per month

Purchase price per bike = $40

Average selling price per bike = $70

How many bicycles must the store sell each month to break even ;

Break even point = point at which there is net profit / loss = 0

Let number of bicycles store must sell = x

Operation cost + (purchase price * Number of bicycles) = selling price * Number of bicycles

2250 + 40x = 70x

2250 = 70x - 40x

2250 = 30x

x = 2250 / 30

x = 75

To break even 75 bicycles must be sold

5 0
2 years ago
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