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3 years ago

Let n be the middle number of three consecutive even integers. Write an expression for the sum of these integers.

Mathematics

1 answer:

Alisiya [41]3 years ago

6 0

N - 1 = 1st number
n = middle number
n + 1 = 3rd number

(n - 1) + n + (n + 1) = 3n <== ur expression

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Simplify. <br><br> −3x3(−2x2+4x−3)

stepladder [879]

Answer:

$-3x^3(-2x^2+4x-3)$ simplifies to $6x^5-12x^4+9x^3$

Step-by-step explanation:

Given expression $-3x^3(-2x^2+4x-3)$

We have to simplify the above expression,

Consider the given expression $-3x^3(-2x^2+4x-3)$

Multiply each term in brackets by $-3x^3$ , we get,

$-3x^3(-2x^2+4x-3)=-3x^3(-2x^2)-3x^3(4x)[-3x^3(-3)$

Solving further, using $x^n\cdot x^m=x^{n+m}$ we get,

$-3x^3(-2x^2)-3x^3(4x)[-3x^3(-3)=6x^5-12x^4+9x^3$

Thus, $-3x^3(-2x^2+4x-3)$ simplifies to $6x^5-12x^4+9x^3$

4 0

3 years ago

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alexira [117]

They still need 40 bottles

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3 years ago

I need help<br><br> simplify: 4^8/4^-4

LenKa [72]

Answer:

$4^{12}$

Step-by-step explanation:

using the rule of exponents

$\frac{a^{m} }{a^{n} }$ = $a^{(m-n)}$ , then

$\frac{4^{8} }{4^{-4} }$ = $4^{(8-(-4))}$ = $4^{(8+4)}$ = $4^{12}$

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1 year ago

Explain how to find the mean of a data set

leva [86]

To find mean you add all the values in your data together and divide by the # of values you have.

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Ratio is the number of something beside another number of something i.e. ( There are 2 boys and three girls so the Ratio would be 2:3) Therefore the answer would be 5:11:4:4. Yiou want the goats ratio of the total number of animals so we will add all animals EXcEPT the goat. 5+11+4 = 20 so the ratio would be 4:20

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3 years ago