Please Solve:Adding and Subtracting PolymonialsAdd: (–6 – n + 2n2) + (8 – 3n – 10n2)
A.–2 – 4n – 8n2
B.2 – 2n – 8n2
C.2 – 4n – 8n2
D.–2 – 2n – 8n2

Add: (8x + 2y – 3z – 4) + (–4x – 5y + 4z + 6)
A.–4x + 3y – z + 2
B.4x – 3y – z + 2
C.–4x + 3y –z – 2
D.4x – 3y + z + 2

Subtract and simplify: (2p^2q – 3pq^2 + q^3) – (p^2q + q^3)
A.p^2q – 3pq^2
B.2p^2q – 3pq^2
C.p^2q – 3pq^2+2q^3
D.p^2q – 2pq^2

Subtract and simplify: (–y^2 – 3y – 5) – (–3y^2 – 7y + 4)
A.2y^2 – 10y + 4
B.2y^2 + 4y – 9
C.–2y^2 – 10y – 1
D.2y^2 – 7y – 9

Subtract and simplify: (10x^4 – 2x + 7) – (6x^4 + 2x^3 – 4x^2 – 1)
A.4x^4 – 2x^3 + 4x^2 – 2x + 6
B.4x^4 + 2x^3 – 4x^2 – 2x + 8
C.4x^4 – 2x^3 + 4x^2 – 2x + 8
D.16x^4 + 2x^3 + 4x^2 – 2x + 8

Answers

Answer 1

Answer: $Add:\n \n (-6-n + 2n^2) + (8 - 3n - 10n^2) =\n \n= -6-n + 2n^2 + 8 - 3n - 10n^2 =\n \n=2 - 4n -8n^2 \n \n Answer : \ C. \ \ \2 - 4n - 8n2$

$Add: \n \n (8x + 2y - 3z -4) + (-4x - 5y + 4z + 6) = \n \n =8x + 2y - 3z -4 -4x - 5y + 4z + 6=\n \n=4 x - 3 y + z + 2 \n \n Answer : \ D. \ \ \ 4x - 3y + z + 2$

$Subtract \ and \ simplify: \n\n (2p^2q - 3pq^2 + q^3) -(p^2q + q^3)=\n \n= 2p^2q - 3pq^2 + q^3 - p^2q -q^3 = \n \n= p^2q - 3pq^2 \n \n Answer : \ A. \ \ \ \ p^2q - 3pq^2$

$Subtract \ and \ simplify: \n\n (-y^2 - 3y-5) - (-3y^2 - 7y + 4)= \n \n= -y^2 - 3y-5+3y^2 +7y- 4 =\n \n=2y^2+4y-9 \n \nAnswer : \ B.\ \ \ \ 2y^2 + 4y - 9$

$Subtract \ and \ simplify: \n\n (10x^4 -2x + 7)-(6x^4 + 2x^3 -4x^2 - 1) = \n \n = 10x^4 -2x + 7 - 6x^4 - 2x^3 +4x^2 + 1=\n \n=4x^4 -2x^3 +4x^2-2x + 8 \n \nAnswer : \ C. \ \ \ \4x^4 -2x^3 + 4x^2- 2x + 8$

Answer 2

Answer: $1)\n(-6-n + 2n^2) + (8-3n-10n^2) =2-4n-8n^2\ \ \ \Rightarrow\ \ \ Ans.\ C\n\n2)\n(8x+2y-3z-4)+(-4x-5y+4z+6)=4x-3y+z+2\ \Rightarrow\ Ans.D\n\n3)\n(2p^2q-3pq^2+q^3)-(p^2q + q^3) =p^2q-3pq^2\ \ \ \Rightarrow\ \ \ Ans.\ A\n\n4)\n (-y^2-3y-5)-(-3y^2-7y + 4) =-y^2-3y-5+3y^2+7y - 4=\n.\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ =2y^2+4y-9\ \ \ \Rightarrow\ \ \ Ans.\ B\n$

$5)\n(10x^4-2x + 7)-(6x^4 + 2x^3-4x^2-1) =\n=10x^4-2x + 7-6x^4 - 2x^3+4x^2+1=\n=4x^4-2x^3+4x^2-2x+8\ \ \ \Rightarrow\ \ \ Ans.\ C$

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A 9 kg bag of mangoes for $12 what is it per kg

Answers

you can divide 12 dollars by 9 kg to get 1.33 dollars per Kg

12 : 9 = 1.33333333333333

What is the greatest common factor of 28 and 48

Answers

The greatest common factor of 28 and 48 is 4. The greatest common factor of two numbers is the highest number that can be multiplied to get both numbers.

Factors of 28 - 1, 2, 4, 7, 14, 28
Factors of 48 - 1, 2, 3, 4, 6, 8, 12, 24, 48

To check this, we can divide both numbers by 4 and see if our answers have any common factors. If they do, we need to check and see if there was a bigger factor we could have used.

28/4 = 7
48/4 = 12

Because 7 and 12 have no common factors other than 1, we were correct. The greatest common factor of 28 and 48 is 4.

Hope this helps!

4 is the GCF of the 28 and 48.

Let's find the prime factorizations of 28 and 48:

Prime factorization of 28:

28 = 2 × 2 × 7

Prime factorization of 48:

48 = 2 × 2 × 2 × 2 × 3

Now, let's identify the common prime factors of 28 and 48, which are the prime factors that appear in both factorizations:

Common prime factors: 2 × 2

To find the GCF, we multiply the common prime factors together:

GCF = 2 × 2 = 4

Therefore, the greatest commonfactor of 28 and 48 is 4.

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Solve the proportion of x. 6/10=9x

Answers

I'm guessing since it's a proportion that you meant 6/10 = 9/x, so in that case.

6 9
---- = --- You have to cross-multiply.
10 x

(6x) = 90 Then divide by 6 normally.

x = 15

5 × 10/12 what is the product?

Answers

Answer:

Step-by-step explanation:

10 divided by 12= 0.83

0.83 times 5= 4.16 or 26/625

Suppose you invest $20,000 at the age of 40, and agree to start receivingpayments at the age of 50. At age 47, you decide you want to withdraw $7500
from your account. What is the IRS fee you will have to pay? Remember, the
IRS charges 10% if you withdraw before you are 59.5.
O
O
o
O
A. $750.00
B. $75.00
C. $500.00
D. $100.00
SURMIT

Answers

The amount of the IRS fee you will have to pay is A. $750.00.

What is Percentage?

Percentage is defined as the parts of a number per fraction of 100. We have to divide a number with it's whole and then multiply with 100 to calculate the percentage of any number.

Percentage is usually denoted by the symbol '%'.

Given that,

Amount you invested at the age of 40 = $20,000

You will receive payments at the age of 50.

Amount withdrawn at the age of 47 = $7500

IRS charges 10% if you withdraw before you are 59.5.

Since your age is 47, you have to pay 10% IRS fees.

IRS fees = 10% of 7500

= 10/100 × 7500

= $750

Hence the IRS fee you will have to pay is A. $750.00.

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Answer: A. $750.00

Step-by-step explanation:

Simplify and explain your answer 4/7+2/5(1/5+1/10)

Answers

$(4)/(7)+(2)/(5)\cdot((1)/(5)+(1)/(10))=(4)/(7)+(2)/(5)\cdot((2)/(10)+(1)/(10))=(4)/(7)+(2)/(5)\cdot(3)/(10)=(4)/(7)+(1)/(5)\cdot(3)/(5)\n\n=(4)/(7)+(6)/(25)=(4\cdot25)/(7\cdot25)+(6\cdot7)/(25\cdot7)=(100)/(175)+(42)/(175)=(142)/(175)$

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