Which statement justifies that 3x2 − 2x − 4 multiplied by 2x2 + x − 3 obeys the closure property of multiplication? the result 6x4 − 2x2 + 12 has a degree of 4. the result 6x4 − 2x2 + 12 is a trinomial. the result 6x4 − x3 − 19x2 + 2x + 12 is a polynomial. the result 6x4 − x3 − 19x2 + 2x + 12 has a degree of 4. i think it is b.

We have been given two polynomials

Let us first multiply these polynomials.

Now, we know that polynomials follows closure property of multiplication.

It means that when we multiply two polynomials, the result will be a polynomial.

Since, when we multiplied the given polynomials, we got which is a polynomial.

Therefore, the correct option is

The result   is a polynomial.

the answer is a) y= 2 csc [0.5 (x+pi/2)]-1

step-by-step explanation:

step by step resolutions

1) n+n+1+n+2=51

3n+3=51

3n=48

n=16

the three numbers are 16, 17 and 18.

2) x+15=4x

3x=15

x=5

radha is now 5 years old

3) the two digits are x and y.

y=3x

(10x+y)+(10y+x)=88

y=3x

11x+11y=88

y=3x

x+y=8

x+3x=8

x=2

the original number can be either 28 or 82.

4) n+(n+2)+(n+4)=48

3n+6=48

3n=42

n=14

the numbers are 14, 16 and 18.

5) y=x+3

10y+x+10x+y=143

y=x+3

11x+11y=143

y=x+3

x+y=13

x+x+3=13

2x=10

x=5

the original number can be 57 or 75.

hope this !