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makkiz [27]
2 years ago
15

Can anyone help me with this​

Mathematics
1 answer:
Hatshy [7]2 years ago
8 0
It’s D. I’ll show you in the picture below
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A. Is the sum of two polynomials always a polynomial? Explain
IgorLugansk [536]

Answer:  The answers for both (a) and (b) is YES.


Step-by-step explanation: A polynomial is an algebraic expression containing   two or more algebraic terms, i.e., the sum of several terms that contain different powers of the same variable or variables with real coefficients.

For example, p(x) = 4x²+x+2 is a polynomial in variable 'x'.

(a) Yes, the sum of two polynomials is again a polynomial. For example,

if p(x) = ax² + bx + c  and  q(x) = dx² + ex + f, where, a, b, c, d, e and f are real numbers, then their sum will be

p(x) + q(x) = (a+d)x²+(b+e)x+(c+f), which is again a polynomial in 'x' with real coefficients.

(b) Yes, the difference of two polynomials is again a polynomial. For example,

p(x) - q(x) = (a-d)x²+(b-e)x+(c-f), which is again a polynomial in 'x' with real coefficients.

Thus, the answer is YES.

6 0
3 years ago
What is the area of the polygon below?
emmasim [6.3K]

Answer:

20

Step-by-step explanation:

3 0
3 years ago
Humberto evaluates the expression 4t2 for t=3. He correctly substitutes 3 for t in the expression, but then says that the value
AveGali [126]

Answer:

36

Step-by-step explanation:

He multiplied the four and the three first when he multiplied the equation together. However, according to the order of the operations, he was supposed to square three first. 3^2 = 9. Then multiplied 9*4 = 36.

4 0
3 years ago
The cost, d, of a DVD is twice as much as the cost, v, of a VCR tape.
prisoha [69]
It’s B because the dvd is twice the vcr tape
5 0
2 years ago
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The anwser to this problem is $2.71
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