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3 years ago

6

Nêu định nghĩa số hữu tỉ? Nêu quy tắc cộng, trừ, nhân ,chia số hữu tỉ?

2 answers:

expeople1 [14]3 years ago

6 0

số hữu tỉ là các số x có thể biểu diễn dưới dạng phân số $\frac{a}{b}$ trong đó a và b là các số nguyên với b {\displaystyle \neq }\neq 0.[1] Tập hợp số hữu tỉ ký hiệu là {\displaystyle \mathbb {Q} }{\displaystyle \mathbb {Q} }.[2]

Step-by-step explanat

ion:

love history [14]3 years ago

6 0

Answer:

Step-by-step explanation:

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PLEASE HELP!!!!!!!!!!!!!!

MaRussiya [10]

The answer is the top answer

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4 years ago

What binomial do you have to add to the polynomial:

marshall27 [118]

Answer:

a) $-2x^2+5xy$

b) $-3y^2+5xy$

Step-by-step explanation:

<u>Part (a)</u>

Given polynomial : $2x^2+3y^2-5xy+1$

The binomial that should be added to the given polynomial to get a polynomial that does not contain the variable x is:

$-2x^2+5xy$

$(2x^2+3y^2-5xy+1)+(-2x^2+5xy)$

$=2x^2+3y^2-5xy+1-2x^2+5xy$

$=2x^2-2x^2+3y^2-5xy+5xy+1$

$=3y^2+1$

<u>Part (b)</u>

Given polynomial : $2x^2+3y^2-5xy+1$

The binomial that should be added to the given polynomial to get a polynomial that does not contain the variable y is:

$-3y^2+5xy$

$(2x^2+3y^2-5xy+1)+(-3y^2+5xy)$

$=2x^2+3y^2-5xy+1-3y^2+5xy$

$=2x^2+3y^2-3y^2-5xy+5xy+1$

$=2x^2+1$

7 0

2 years ago

Please help with question below!

Charra [1.4K]

Answer:

45

Step-by-step explanation:

45 is constant, because no mater how many miles you drive, you will always be charged $45. It stays the same

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4 years ago

Read 2 more answers

What is the gcf of 32 and 56

Archy [21]

Answer:

The GCF of 32 and 56 are 8.

Step-by-step explanation:

Answer above! Enjoy! :)

8 0

3 years ago

5 pockets of potatoes R125,00. how much will 4 pockets cost?

dsp73

Cost of 1pocket of potatoes = 5/125
=25
só,
4pockets = 25 multiply by 4 = 100

your answer is 100

Hi! (◕‿◕)

5 0

3 years ago