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3 years ago

What is the product of 2x + y and 5x – y + 3?

Mathematics

2 answers:

andrew11 [14]3 years ago

8 0

<h3>What is the product of 2x + y and 5x – y + 3?</h3>

The polynomial product has the distributive property.

Step 1: We have to distribute each term of the first polynomial to every term of the second polynomial.

(2x + y) * (5x - y +3) = 2x(5x - y + 3) + y(5x - y + 3) =

= 10x² - 2xy + 6x + 5xy - y² + 3y =

Step 2: Combine like terms.

= 10x² - y² + 3xy + 6x + 3y

Answer : 10x² - y² + 3xy + 6x + 3y

$\textit{\textbf{Spymore}}$

Bess [88]3 years ago

6 0

Answer:10x^2+3xy+6x+-1y^2+3y

On edg: 10,3,6,-1,3

Step-by-step explanation:

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A bag contains 5 red, 4 green, and 3 blue marbles.

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Answer:

1/12

Step-by-step explanation:

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3 years ago

"5. Multiple-choice questions each have five possible answers (a,b,c,d,e), one of which is correct. Assume that you guess the an

Nina [5.8K]

Answer:

A) P(WWC) = 0.128

B) P(WCC) = 0.032

P(CWC) = 0.032

P(CCW) = 0.032

C) probability of getting 2 correct answers when 3 guesses are made is i.e P (1 wrong and 2 correct) = 0.064

Step-by-step explanation:

A) Using the multiplication rule, we have; P(A and B) = P(A) x P(B)

Probability of a wrong answer = 4/5 = 0.8

Probability of a correct answer = 1/5 =0.2

Thus; P(WWC) = 0.8 x 0.8 x 0.2 = 0.128

B) Beginning with one wrong and two correct answers, a complete list of all possibilities is;

P(WCC), P(CWC), P(CCW)

Hence the complete list is;

(0.8 x 0.2 x 0.2); (0.2 x 0.8 x 0.2); (0.2 x 0.2 x 0.8)

So we have;

P(WCC) = 0.032

P(CWC) = 0.032

P(CCW) = 0.032

C) Based on the results above, the probability of getting 2 correct answers when 3 guesses are made is i.e P(1 wrong and 2 correct) = 2 x 0.032 = 0.064

7 0

3 years ago

What is the sum of f and 6

Inga [223]

The sum of f and 6 is simply f+6.
It is like this because f is a variable and we do not know its value.

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3 years ago

Read 2 more answers

What is 1/4=1/12+1/z

Delicious77 [7]

Answer:

$\boxed {z = 6}$

Step-by-step explanation:

Solve for the value of $z$ :

$\frac{1}{4} = \frac{1}{12} + \frac{1}{z}$

-The variable $z$ cannot equal to $0$ since division by zero is undefined. SO, you multiply both sides by $12z$ , which is the least common multiple of $4$ , $12$ , and $z$ :