I only got this partially correct please tell me the correct answer

I can't figure out this question?

laila [671]

Do 6/30 and you will get .2lbs a day.

3 0

3 years ago

Read 2 more answers

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

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 :

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5 0

2 years ago

Lin rode her bike 2 miles in 8 minutes. She rode at a constant speed. How

hodyreva [135]

Answer: 4

Step-by-step explanation:

For this question, we have to divide the number 8 by 2.

8 ÷ 2 = 4

Now, we have to take the quotient, 4, and multiply it by 1.

1 x 4 = 4

The answer is 4.

6 0

3 years ago

What is the approximate value for 813 divided by 13 A. 30 B. 35 C. 40 D. 45

kirill115 [55]

None of the options is correct. 813 divided by 13 equals 62.538461, whose approximate value is 62

13 times 813 equals 62.538461.

813/13 produces a non-terminating, repeating decimal as a consequence.

The repeating pattern seen above, 538461, is referred to as repetend and is shown with an overline and vinculum.

Another typical parenthetical remark is this one: 813/13 = 62.(538461): However, it's likely that you may see the reptend marked with an ellipsis in daily use: 813 / 13 = 62.538461… .

Decimal 813 divided by 13 equals 62.538461.

In a fraction, 813 is equal to 813/13.

To learn more about division from given link

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7 0

1 year ago

Margo borrows $1300, agreeing to pay it back with 7% annual interest after 6 months. How much interest willshe pay?Round your an

MaRussiya [10]

Recall the formula for determining the interest using simple interest

$\begin{gathered} I=Prt \\ \text{where} \\ P\text{ is the principal amount} \\ r\text{ is the rate in decimal form} \\ t\text{ is time} \end{gathered}$

Convert the rate into decimal form by dividing by 100%

$7\%\div100\%=0.07$

Substitute the following values

P = $1300, r = 0.07, t = 6/12 (12 months in a year, only 6 months has passed)

$\begin{gathered} I=Prt \\ I=1300\cdot0.07\cdot\frac{6}{12} \\ I=91\cdot\frac{1}{2} \\ I=45.5 \end{gathered}$

Therefore, Margo will pay back $45.50 in interest.

7 0

1 year ago