5 5/9 - 2 4/9?? Help!

Mathematics

2 answers:

joja [24]3 years ago

4 0

Answer:

The answer would be 3 1/9

Step-by-step explanation:

5-2= 3 5/9-4/9 = 1/9

yarga [219]3 years ago

4 0

Answer:

3 1/9

Step-by-step explanation:

(5 x 9 + 5)/9 - 2 4/9

(45 + 5)/9 - 2 4/9

50/9 - 2 4/9

50/9 - (2 x 9 + 4)/9

50/9 - (18 + 4)/9

50/9 - 22/9

(50 - 22)/9

28/9

3 1/9

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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,

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

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

4 0

3 years ago

What is 19.7-6.8 the answer

kenny6666 [7]

Hi! :) 19.7 - 6.8 is 12.9. If you need anymore help, ask me!

5 0

4 years ago

Read 2 more answers

Please help x 15 points

katovenus [111]

A(0,-1)
B(3√3/3, 2)

Slope of AB = (y₂ - y₁)/(x₂-x₁)
Slope = (2-1)/(√3/3 , -0)

Slope = 1/√3/3 = 1/√3 = √3/3

OR SLOPE = tan(a°) = √3/3 and a° = 30°

3 0