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3 years ago

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:

Step-by-step explanation:

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Acar can travel 25 miles per gallon. Approximately how many gallons of fuel will the car need to travel 30

FrozenT [24]

Answer:

The gallons of fuel car need to travel 30 km is <u>0.75</u> approximately .

Step-by-step explanation:

Given:

The car can travel 25 miles per gallon. (1 mile = 1.6 km)

Now, we need to convert 25 miles into km .

25 miles = 25 × 1.6 km

= 40 km

So, the car can travel 40 km per gallon.

Then, we find out in 1 km how many gallons are used:

$40 km = 1 gallons$

$1\ km = \frac{1}{40}\ gallons$

$1\ km = 0.025\ gallons$

Now, we find out how much gallons of fuel will the car need to travel 30 km:

Gallons of fuel the car need to travel 30 km = $30\times 0.025$

= $0.75 gallons$ .

Therefore, the gallons of fuel car need to travel 30 km is 0.75 approximately.

6 0

3 years ago

If light travels at 10,000 km in 3.0 x 10² seconds,

eduard

Answer:

1000xm

Step-by-step explanation:

1 meter = 3.2808 feet, hence. 9.8424 x 10^8 feet in 1 second. 1 foot in x seconds. hence it takes 1 / (9.8424 x 10^8) = 0.10168 x 10^(-8) seconds. ➡️1km = 1000xm⬅️

4 0

1 year ago

When the denominator equals 0, the argument of a square root is less than 0, or the argument of a logarithm is less than or equa

Evgen [1.6K]

The function is undefined.

4 0

3 years ago

13. A packet of sweets costs $2.45.

Margaret [11]

Answer:

$2.45*4/7=$1.4

So felipe gets $1.4

Step-by-step explanation:

$2.45*4/7=$1.4

So felipe gets $1.4

4 0

3 years ago

There were 6 friends who played a game of golf. Here were their scores. Player Score Sara -3 Steve 0 Kyle -2 Anna +3 Betsy +2 Mi

HACTEHA [7]

Answer: -4

Step-by-step explanation:

= -3 + 0 +(-2) + 3 + 2 +(-4)

= -3 - 2 + 3 + 2 - 4

= -4

6 0

4 years ago