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denis-greek [22]
3 years ago
6

I need help solving this question

Mathematics
1 answer:
PSYCHO15rus [73]3 years ago
5 0
6+_+7=
9+_-8=
9+_+3
11+_-17
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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
The number of hours, t, that bacteria spread 10-fold can be modeled by the equation B(t) = B0(10)2t. There are 15 bacteria prese
Whitepunk [10]
W is your awnser. just w


4 0
3 years ago
To eliminate the terms and solve for y in the tewest steps, by which constants should the equations be multiplied by before
Novosadov [1.4K]

Answer:

the equation is not shown...

Step-by-step explanation:

but to solve for y you should use the first equation that is use the coefficient of x in the first equation to multiply all the terms in the second equation.

And use the coeffient of x in the second equation to multiply the the terms in the first equation.

It would have been better if the equation was shown for better explanation.

6 0
3 years ago
Pls help. I don't understand.
Nana76 [90]

Answer:

112

Step-by-step explanation:

I took the same test

7 0
3 years ago
Read 2 more answers
Caleb mowed 18 lawns in 6 hours. What was his rate of mowing in lawns per hour? Express your answer in simplest form.
erik [133]

Answer:

3

Step-by-step explanation:

to find the distance you need to divide the lawns by how long it took.

6 dived by 18= 3

3 0
3 years ago
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