Sometimes subtraction involves borrowing. true or false

Mathematics

2 answers:

Sergio [31]2 years ago

7 0

Answer:

true

Step-by-step explanation:

Gelneren [198K]2 years ago

3 0

Answer:

True.

Step-by-step explanation:

You will need borrowing for situations like this; 11 - 09

To subtract 1 by 9, you need to borrow.

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I’m so confused! Can someone help me with this? Please and thank you!

ludmilkaskok [199]

Answer:

Step-by-step explanation:

1) the domain is x∈[0;+∞);

2) the solution is:

$\sqrt{x}\leq 10; \ => \ x\leq 100;$

3) finally, the solution with the domain is:

x∈[0;100].

7 0

2 years ago

10. simplify the rational expression by rationalizing the denominator.( 1 point ) 4√150/√189x

ddd [48]

Rationalizing the denominator, simply means "getting rid of that pesky root at the bottom", and we do so by simply multiplying it by something to take it out, of course, we multiply the bottom, we have to also multiply the top,

$\bf \cfrac{4\sqrt{150}}{\sqrt{189x}}\cdot \cfrac{\sqrt{189x}}{\sqrt{189x}}\implies \cfrac{4\sqrt{150}\sqrt{189x}}{(\sqrt{189x})^2}\implies \cfrac{4\sqrt{(150)({189x})}}{189x}$

$\bf \cfrac{4\sqrt{28350x}}{189x}\qquad 
\begin{cases}
28350=2\cdot 3\cdot 3\cdot 3\cdot 3\cdot 5\cdot 5\cdot 7\\
\qquad 2\cdot 3^2\cdot 3^2\cdot 5^2\cdot 7\\
\qquad 2\cdot (3^2)^2\cdot 5^2\cdot 7\\
\qquad 2\cdot (3^2\cdot 5)^2\cdot 7\\
\qquad 2\cdot (45)^2\cdot 7\\
\qquad 14\cdot 45^2
\end{cases}\implies \cfrac{4\sqrt{14\cdot 45^2}}{189x}
\\\\\\
\cfrac{4\cdot 45\sqrt{14}}{189}\implies \cfrac{180\sqrt{14}}{189x}\implies \cfrac{20\sqrt{14}}{21x}$

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3 years ago

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Sveta_85 [38]

Answer:

ill answer if u can make it english

Step-by-step explanation:

6 0

3 years ago

Actually thats wrong bc my teacher did it with us but i really dont know the answer

Dvinal [7]

Answer: