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Arturiano [62]
3 years ago
11

7. Which property of polynomials says that the sum of two polynomials is also a polynomial?

Mathematics
1 answer:
vlabodo [156]3 years ago
4 0

Answer:

Closure property

Step-by-step explanation:

The closure property of polynomials for addition says that, if we add any two polynomials , the result is also a polynomial.

For is

{x}^{2}  + 2

is a polynomial.

x - 2

is also a polynomial.

The sum of the two polynomials is

{x}^{2}  + 2  + x - 2 =  {x}^{2} + x

The result:

{x}^{2}  + x

is also a polynomial.

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You are given an original figure with coordinates B(-7,-2), A(5,-2), and D(-7,7) and its image with coordinates J(-3,0), K(1,0),
MAVERICK [17]

Answer:

see below

Step-by-step explanation:

DB = 9  units  (by counting)

BA = 12 units  (by counting)

DA  can be found by using the pythagorean theorem

a^2 +b^2 = c^2

BD^2 + BA^2 = DA ^2

9^2 +12^2 = DA^2

81 +144 = DA^2

225 = DA ^2

Take the square root of each side

sqrt(225) = sqrt(DA^2)

15 = DA

LJ = 3  units  (by counting)

JK = 4 units  (by counting)

LK  can be found by using the pythagorean theorem

a^2 +b^2 = c^2

LJ^2 + JK^2 = LK ^2

3^2 +4^2 = LK^2

9 +116 = LK^2

25 = LK ^2

Take the square root of each side

sqrt(25) = sqrt(LK^2)

5 = LK

Scale factor from BAD to JKL

15 to 5

Divide each side by 5

3 to 1

We multiply by 1/3 to go from the big to small

7 0
3 years ago
The sum of two numbers is 24 and their quotient is 5 <br> what are the two numbers
ELEN [110]
The numbers are "x" and "y";
Therefore, we can suggest this system of equations:
x+y=24                         ⇒x=24-y
x/y=5

solve this problem by substitution method.
(24-y)/y=5
24-y=5y
-y-5y=-24
-6y=-24
y=-24/-6=4

x=24-y
x=24-4
x=20

Answer: the numer are: 20 and 4

4 0
3 years ago
Simplify: 2(4x + 8)<br> (X)<br> /h<br> X<br> X
jasenka [17]

Answer:

x = -2

Step-by-step explanation:

2(4x+8)

= 8x+16

8x+16 = 0

-16 -16

8x = -16 (do -16÷8 & get)

x = -2

8 0
3 years ago
Please help it's not working
Vaselesa [24]

Answer: 582.7526

Step-by-step explanation:

p =3,14

r =13,4:2=6.7

r^2=44.89

SA= 3,14*44.89+3,14*6,7*21= 582,7526

5 0
3 years ago
What is 62.5 percent in two equevelent forms
Eddi Din [679]
62.5% - percent
.625 - decimal
5/8 - faction
8 0
3 years ago
Read 2 more answers
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