3 years ago

An example of an addition problem in which you would and would not group the addends different to add

Mathematics

1 answer:

murzikaleks [220]3 years ago

5 0

I dont think so. and you should add and then reseporate the groups.

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Rationalize the numerator or denominator, and simplify:

allochka39001 [22]

$\dfrac{\sqrt[3]{x+h}-\sqrt[3]x}h\times\dfrac{\sqrt[3]{(x+h)^2}+\sqrt[3]{x(x+h)}+\sqrt[3]{x^2}}{\sqrt[3]{(x+h)^2}+\sqrt[3]{x(x+h)}+\sqrt[3]{x^2}}=\dfrac{(\sqrt[3]{x+h})^3-(\sqrt[3]x)^3}\cdots$
$=\dfrac{x+h-x}\cdots=\dfrac h\cdots$

The $h$ s then cancel, leaving you with the $\cdots=\sqrt[3]{(x+h)^2}+\sqrt[3]{x(x+h)}+\sqrt[3]{x^2}$ term.

If it's not clear what I did above, consider the substitution $a=\sqrt[3]{x+h}$ and $b=\sqrt[3]x$ . Then

$a^3-b^3=(a-b)(a^2+ab+b^2)$
$\implies\dfrac{a-b}h=\dfrac{a-b}h\times\dfrac{a^2+ab+b^2}{a^2+ab+b^2}=\dfrac{a^3-b^3}{h(a^2+ab+b^2)}$

4 0

3 years ago

A camp counselor and four campers are to be seated along a picnic bench. In how many ways can this be done if the counselor must

Lady_Fox [76]

Answer: 6 ways

Step-by-step explanation:

4 0

1 year ago

- 3 (n-3)-5<br> simplify the expression using distributive property please rnnn

Tju [1.3M]

Distribute the “-3” to both n&-3 —> -3n+9 then your left with -5 and subtract 9-5

-3n+4

Hope this helps:)

4 0

3 years ago

Please help right in <br>y=mx+b form

slavikrds [6]

Y=2/2x+0
hope this helps

ps~~u dont need that 0

4 0

3 years ago

Help? 2+2-8+6-2+9+5-6+6-3+8-1+7-0+8-1+10-2+11+

SOVA2 [1]

Answer:

Step-by-step explanation:

2+2 = 4

4 - 8 = -4

-4 + 6 = 2

2 - 2 = 0

0 + 9 = 9

9 + 5 = 14

14 - 6 = 8

8 + 6 = 14

14 - 3 = 11

11 + 8 = 19

19 - 1 = 18

18 + 7 = 25

25 - 0 = 25

25 + 8 = 33

33 - 1 = 32

32 + 10 = 42

42 - 2 = 40

40 + 11 = 51

6 0

3 years ago