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3 years ago

Select the equation that most accurately depicts the word problem.

Mathematics

1 answer:

lakkis [162]3 years ago

5 0

Answer:

A 3n = $3.85

Step-by-step explanation:

For every 3 pounds of butter you have, you have to pay $3.85

the equation is = 3n = $3.85

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Add the following polynomial of x3+3xy-2×y2+y3,2×3-5x2y-3xy2-2y3<br>

ANTONII [103]

The addition of the polynomial $x^{3}+3xy-2xy^{2} +y^{3}$ with $2x^{3}-5x^{2} y-3xy^{2}-2y^{3}$ is $3x^{3}+3xy-5x^{2} y-5xy^{2}-y^{3}$ .

What is a polynomial?

⇒ A polynomial is an expression consisting of indeterminates and coefficients, that involves only the operations of addition, subtraction, multiplication, and non-negative integer exponentiation of variables.

⇒ In the addition of polynomials, the like terms are added while in subtraction, the like terms are subtracted.

Calculation;

We have been given two polynomial which we have to add $x^{3}+3xy-2xy^{2} +y^{3}$ and $2x^{3}-5x^{2} y-3xy^{2}-2y^{3}$

The sign after addition or subtraction will always be of the variable having more value.

$(x^{3}+3xy-2xy^{2} +y^{3} )+(2x^{3}-5x^{2} y-3xy^{2}-2y^{3})$

On adding like terms with each other

⇒ $(x^{3} +2x^{3})+ 3xy-5x^{2} y-(2xy^{2}+3xy^{2})+(y^{3}-2x^{3})$

⇒ $3x^{3}+3xy-5x^{2} y-5xy^{2}-y^{3}$

Hence the addition of the polynomial $x^{3}+3xy-2xy^{2} +y^{3}$ and $2x^{3}-5x^{2} y-3xy^{2}-2y^{3}$ is $3x^{3}+3xy-5x^{2} y-5xy^{2}-y^{3}$ .

Learn more about polynomial here :

brainly.com/question/1487158

#SPJ9

5 0

2 years ago

Which two men created the nations first two political parties

Schach [20]

Answer:

the men go to da moon

Step-by-step explanation:

7 0

3 years ago

One group of scientists (Group A) has measured a time for a particular chemical reaction to be completed to be 7.34 ± 0.05 s. A

Nesterboy [21]

Answer:

1. Group A and B agree with each other.

2. Group A and C do not agree with each other.

Step-by-step explanation:

When we are analizing this problem, we will see what are the ranges of this measured times. Since we are taking into account the error we can see that :

Group A varies from 7.34-0.05 to 7.34+0.05. So the limits are (7.29 ;7.39)

Group B varies from 7.38-0.03 to 7.38+0.03. So the limits are (7.35; 7.41)

Group C varies from 7.46-0.06 to 7.46+0.06. So the limits are (7.40; 7.52)

Question 1 is about the overlapping response in Group A and Group B. And yes, we have an overlap between 7.35 to 7.39. Among this times both group A and B are in agree with each other within the experimental uncertainty.

Question 2 is now referring to Group A and Group C. And no, there isn't any common time where both groups agree with each other.

7 0

3 years ago

4023×40 pls help now thanks alot

Mazyrski [523]

You can put this into a calculator
But the answer is 160920

3 0

3 years ago

The table shows the number of points scored each game for 2 different basketball teams. Find the mean absolute deviation(M. A. D

N76 [4]

Answer:

mean:

team 1: 41

team 2: 56

Step-by-step explanation:

add all numbers then divide by how many numbers

3 0

3 years ago