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3 years ago

I really need help with this ?

Mathematics

1 answer:

marin [14]3 years ago

8 0

Answer:

Step-by-step explanation:

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A pond 85 feet across; 1 inch = 4 feet

enot [183]

Well... all u have to do is 85 divided by 4 which equals 21.25..... unless there is another part of the question!!

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3 years ago

Perimeter of a rectangle with these dimentions w--12 l--10

GuDViN [60]

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3 years ago

Cuanto es 4n - 2 =-18

Zepler [3.9K]

Espero que esto ayude!!!

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2 years ago

5. What is the value of x?<br> х<br> 4 in.<br> 3 in.<br> 6 in.

satela [25.4K]

Answer:

13in

Step-by-step explanation:

13in because if you add all

4 0

2 years ago

If you are reading this please help!!!!

Soloha48 [4]

Given:

$1. -3 x^{2}\left(4 x^{3}-7\right)\\$2. $(6 x-5)(2 x+3)$\\3. $(3 x-1)\left(x^{2}+5 x-2\right)$$

To find:

The product of the polynomials.

Solution:

1. $-3 x^{2}\left(4 x^{3}-7\right)$ $=-3 x^{2}(4 x^{3}) -3 x^{2}(-7)$

Multiply the numerical coefficient and add the powers of x.

$=-12 x^{5}+21 x^{2}$

2. $(6 x-5)(2 x+3)=6 x(2 x+3)-5(2x+3)$

Multiply each term of first polynomial with each term of 2nd polynomial.

Multiply the numerical coefficient and add the powers of x.

$=12 x^2+18x-10 x-15$

$=12 x^2+8x-15$

3. $(3 x-1)\left(x^{2}+5 x-2\right)=3 x(x^{2}+5 x-2)-1(x^{2}+5 x-2)$

Multiply each term of first polynomial with each term of 2nd polynomial.

Multiply the numerical coefficient and add the powers of x.

$=3x^{3}+15 x^2-6x-x^{2}-5 x+2$

Add or subtract like terms together.

$=3x^{3}+14 x^2-11x+2$

The answer for multiplying polynomials:

$1. -12 x^{5}+21 x^{2}$

$2. \ 12 x^2+8x-15$

$3. \ 3x^{3}+14 x^2-11x+2$

3 0

3 years ago