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svetlana [45]
3 years ago
10

What’s the difference between the polynomials ?

Mathematics
1 answer:
babymother [125]3 years ago
4 0

Answer:

7x^2-4x+3y^2      ( the ^ means the exponent EX: 5^2 is 5 squared. )

Step-by-step explanation:

Remove the parenthesis (a) = a

12x^2-11y^2-13x- (5x^2-14y^2-9x)

-(5x^2 - 14y^2 - 9x)

Distribute parenthesis

-(5x^2) - (14y^2) - (-9x)

Apply minus - plus rules

-5x^2 + 14y^2 + 9x

= 12x^2 - 11y^2 - 13x - 5x^2 + 14y^2 + 9x

Simplify

12x^2-11y^2-13x-5x^2+14y^2+9x

Group like terms

12x^2-5x^2-13x+9x-11y^2+14y^2

Add similar elements

7x^2-13x+9x-11y^2+14y^2

Add similar elements ( - 13x + 9x = -4x )

7x^2-4x-11y^2+14y^2

Add similar elements 11y^2 + 14y^2 = 3y^2

7x^2-4x+3y^2

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What are the solutions to lx + 2) = -13?
Masja [62]

Answer:

B

Step-by-step explanation:

Because -15 + 2 = -13

8 0
3 years ago
If a watch cost $40 and you must pay 6.5% sales tax how much will the tax be
Readme [11.4K]

Answer:

The tax will be $2.60

Step-by-step explanation:

Tax = \frac{6.5}{100} × 40

      = $2.60

3 0
3 years ago
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I'm still confused on trig even after studying it quite a bit, can someone help me with this?
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Answer:

\sin(x)  =  \frac{opposite \: side}{hypotenuse}

\cos(x)  =  \frac{adjacent}{hypotenuse}

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7 0
3 years ago
PLEASE HELP!! Being timed need help asap.
ivanzaharov [21]

If points D, E, F and G make a rectangle with the given coordinates for each point then the area of the rectangle is 150 sq. units

How to find distance between two points?

Distance between two points is the length of the line segment that connects the two points in a plane.

The formula to find the distance between the two points is usually given by D = √((x₂ – x₁)² + (y₂ – y₁)²)

This formula is used to find the distance between any two points on a coordinate plane or x-y plane.

According to the given question:

The four vertices are D(-1,-3), E(-9, -9), F(-18, 3) and G(-10, 9) check the attachment below.

Distance between two points D = √((x₂ – x₁)² + (y₂ – y₁)²)

Side DE = √((-9 – (-1))² + (-9 – (-3))²) = √100 = 10 units

Side EF = √((-18 – (-9))² + (3 – (-9))²) = √225 = 15 units

Side FG = √((-10 – (-18))² + (9 – 3)²) = √100 = 10 units

Side GD = √((-1 – (-10))² + (-3 – 9)²) = √225 = 15 units

∴ Area of rectangle = l x b = DE . EF

Area = 10 x 15 = 150 sq. units

Hence the area of rectangle with the given coordinates is 150 sq. units

To learn more about distance between two points visit

brainly.com/question/24485622

#SPJ1

6 0
1 year ago
In order to practice at home, Tadeo purchased a basketball and a volleyball that cost a total of $67, not including tax. If the
hoa [83]

Answer: B. b + v = 67; b = 2v + 4

Step-by-step explanation: since both the basketball and the volleyball cost 67, we can represent that as b + v = 67.

If you multiplied the cost of the volleyball by 2 and then added 4, you would get the cost of the basketball:

b = 2v + 4

Hope this was helpful! Let me know if you have any further questions. :)

6 0
4 years ago
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