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3 years ago

I don’t understand none of this math

Mathematics

2 answers:

Elena-2011 [213]3 years ago

7 0

Answer:

Step-by-step explanation:

$\frac{a^3-b^3}{5} =\frac{2^3-(-3)^3}{5} =\frac{8-(-27)}{5} =\frac{8+27}{5} =\frac{35}{5} =7$

Ivan3 years ago

4 0

Answer:

Step-by-step explanation:

(a^3 - b^3)/5

Let a =2 and b = -3

(2^3 - (-3)^3)/5

Exponents inside the parentheses

(8 - -27)/5

Subtracting a negative is like adding

(8+27)/5

Finish adding inside the parentheses

35/5

Divide

You might be interested in

5. Using only odd numbers for numerators,

Lady bird [3.3K]

Answer:

3/4 - 1/4 = 1/2
5/8 - 1/8 = 1/2

Step-by-step explanation:

You can pick just about any fraction with an odd numerator and find another at distance 1/2 from it.

For example, 5/7 - 1/2 = 10/14 - 7/14 = 3/14. So your subtraction problem can be ...

5/7 - 3/14 = 1/2

Choosing a denominator divisible by 4 can make both parts of the problem use the same denominator.

3/4 - 2/4 = 1/4, so the corresponding subtraction problem is 3/4 - 1/4 = 1/2.

5/8 - 4/8 = 1/8, so the subtraction problem is 5/8 -1/8 = 1/2.

4 0

3 years ago

What is the remainder when 6x^4-3x^5+2x^3+x-3 is divided by x+1

Svetlanka [38]

The remainder is 3 when we need to divide $6x^4-3x^5+2x^3+x-3\,\,by \,\,x+1$

Step-by-step explanation:

We need to divide $6x^4-3x^5+2x^3+x-3\,\,by \,\,x+1$ and find the remainder

Dividing:

The division is shown in figure below:

The quotient is: $-3x^4+9x^3-7x^2+7x-6$

The remainder is: 3

So, The remainder is 3 when we need to divide $6x^4-3x^5+2x^3+x-3\,\,by \,\,x+1$

Keywords: Division of Polynomials

Learn more about Division of Polynomials at:

#learnwithBrainly

5 0

3 years ago

What is the smallest whole number that can be multiplied by 300 such that the product is a perfect cube?

Neko [114]

300=2×2×5×5×3

We observe that 2 and 5 are grouped in pairs and the 3 is left unpaired.

If we multiply 300 by the factor 3 then

300×3=2×2×5×5×3×3

900=2×2×5×5×3×3 which is a perfect square.

∴ Required number is 3

root of 900 =30

5 0

3 years ago

Read 2 more answers

HELPPPPP!!!! Who Can’t Answer Thisssss!!!!!

LiRa [457]

It would be -8,6, and 4

5 0

3 years ago

Write 22.056 in an expanded form

Sidana [21]

We know the first place after decimal is tenths

The second place after decimal is hundredths

The third place after decimal is the thousandths place

So for 0.056

0 is at the tenths place

5 is at the hundredths place

and 6 is at the thousandths place

Expanding 22.056 we get

22.056 = 20 + 2 + 0.05 + 0.006

22.056 = $20+2+\frac{5}{100}+\frac{6}{1000}$

5 0

4 years ago

Read 2 more answers