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3 years ago

Positive 11 minus negative 9

Mathematics

2 answers:

krek1111 [17]3 years ago

5 0

11-9= 2 its just simple math

Igoryamba3 years ago

3 0

it will leave you with 3

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What's the answer 1/5 divided by 4

iogann1982 [59]

Answer:

1/20

Step-by-step explanation:

1/5 divided by four is 1/20

5x4=20

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3 years ago

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Help me find the sum of

BigorU [14]

Answer:

$5\frac{4}{9}$

Step-by-step explanation:

$\frac{19}{9} + (-\frac{2}{9} ) + \frac{32}{9} = \frac{49}{9} = 5\frac{4}{9}$

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3 years ago

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Hi again i really need help with this.

Elenna [48]

For the first problem you will add 4 to both sides so that n is alone ex:
n-4=-2
+4. +4
————-
n=2
So the answer would be “add 4 to both sides”

And for the second question would be to add 4K to both sides I believe

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3 years ago

MARKING AS BRAINLIEST! LAST ATTEMPT! ) show ur work

matrenka [14]

Answer:

$\sqrt{28} =\sqrt{(7)(4)} =2\sqrt{7} \\\sqrt{40} =\sqrt{(10)(4)} =2\sqrt{10} \\\sqrt{108} =\sqrt{(36)(3)} =6\sqrt{3} \\\sqrt{125} =\sqrt{(25)(5)} =5\sqrt{5}$

$-6\sqrt{81} =-6(9)=-54$

$\sqrt{80} =\sqrt{(16)(5)} =4\sqrt{5)} \\3\sqrt{60} =3\sqrt{(15)(4)} =(3)(2)\sqrt{15} =6\sqrt{15}$

$-\sqrt{200} =-\sqrt{(100)(2)} =-10\sqrt{2}$

$4\sqrt{320} =4\sqrt{(64)(5)} =(4)(8)\sqrt{5} =32\sqrt{5}$

Hope this helps

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3 years ago

Function,d(r) = 0.034r , is used to convert Russian rubles in United States dollars, and function, e(d) = 0.76d , is used to con

Dahasolnce [82]

We have two functions, one which converts rubles to USD and one which converts USD to euros. If we want to convert from rubles to euros, we could just convert it to USD and then euroes.

2000₽ ⇒ USD
$d(r)=0.034r\\d(2000)=0.034(2000)=68$

$68 USD ⇒ €
$e(d)=0.76d\\e(68)=0.76(68)=\boxed{51.68}$

Extra: If you wanted, you could create a function to convert rubles into euroes.
Just substitute that 0.034r for d in e(d) = 0.76d and... $e(r)=0.76(0.034r)=0.02584r$

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3 years ago