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3 years ago

What does R mean in this

Mathematics

2 answers:

insens350 [35]3 years ago

5 0

Answer = it means the statement has infinite solutions, because the equations are the same, the two sides of the equation will always equal each other

Mila [183]3 years ago

4 0

Answer:

Step-by-step explanation:

its 0 i think

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There is a sale on a gallon of milk at the grocery store. The original price was $2.99 and the new price is $2.49. What is the p

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2 years ago

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Prove that H c G is a normal subgroup if and only if every left coset is a right coset, i.e., aH = Ha for all a e G

Kaylis [27]

$\Rightarrow$

Suppose first that $H\subset G$ is a normal subgroup. Then by definition we must have for all $a\in H$ , $xax^{-1} \in H$ for every $x\in G$ . Let $a\in G$ and choose $(ab)\in aH$ ( $b\in H$ ). By hypothesis we have $aba^{-1} =abbb^{-1}a^{-1}=(ab)b(ab)^{-1} \in H$ , i.e. $aba^{-1}=c$ for some $c\in H$ , thus $ab=ca \in Ha$ . So we have $aH\subset Ha$ . You can prove $Ha\subset aH$ in the same way.

$\Leftarrow$

Suppose $aH=Ha$ for all $a\in G$ . Let $h\in H$ , we have to prove $aha^{-1} \in H$ for every $a\in G$ . So, let $a\in G$ . We have that $ha^{-1} =a^{-1}h'$ for some $h'\in H$ (by the hypothesis). hence we have $aha^{-1}=h' \in H$ . Because $a$ was chosen arbitrarily we have the desired .

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3 years ago

Which set of numbers is not closed under multiplication ?

kodGreya [7K]

Answer:

D). irrational numbers

Step-by-step explanation:

The irrational numbers are the set of number which can NOT be written as a ratio (fraction). Decimals which never end nor repeat are irrational numbers. Irrational numbers are "not closed" under addition, subtraction, multiplication or division.

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3 years ago

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write the equation of a line that includes the point (1,5) and has a slope of 3 in slope intercept form.

lina2011 [118]

Y=3x+? (1,5)
5=3(1)+?
5=3+?

y=3x+2

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3 years ago

Which of the following is the same as 727.526? In word form btw! ty

Zielflug [23.3K]

Answer:

seven hundred twenty-seven and five hundred

twenty-six thousandths

Step-by-step explanation:

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3 years ago