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Alex777 [14]
2 years ago
11

I GIVEEEEEEEEE BRAINLISTTTT

Mathematics
1 answer:
LuckyWell [14K]2 years ago
4 0

Answer:

(x,y)--> (x+4,y-4)

Step-by-step explanation:

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<img src="https://tex.z-dn.net/?f=%5Csqrt%5B4%5D%7B5x%2F8y%7D" id="TexFormula1" title="\sqrt[4]{5x/8y}" alt="\sqrt[4]{5x/8y}" al
Furkat [3]

Answer:  \frac{\sqrt[4]{10xy^3}}{2y}

where y is positive.

The 2y in the denominator is not inside the fourth root

==================================================

Work Shown:

\sqrt[4]{\frac{5x}{8y}}\\\\\\\sqrt[4]{\frac{5x*2y^3}{8y*2y^3}}\ \ \text{.... multiply top and bottom by } 2y^3\\\\\\\sqrt[4]{\frac{10xy^3}{16y^4}}\\\\\\\frac{\sqrt[4]{10xy^3}}{\sqrt[4]{16y^4}} \ \ \text{ ... break up the fourth root}\\\\\\\frac{\sqrt[4]{10xy^3}}{\sqrt[4]{(2y)^4}} \ \ \text{ ... rewrite } 16y^4 \text{ as } (2y)^4\\\\\\\frac{\sqrt[4]{10xy^3}}{2y} \ \ \text{... where y is positive}\\\\\\

The idea is to get something of the form a^4 in the denominator. In this case, a = 2y

To be able to reach the 16y^4, your teacher gave the hint to multiply top and bottom by 2y^3

For more examples, search out "rationalizing the denominator".

Keep in mind that \sqrt[4]{(2y)^4} = 2y only works if y isn't negative.

If y could be negative, then we'd have to say \sqrt[4]{(2y)^4} = |2y|. The absolute value bars ensure the result is never negative.

Furthermore, to avoid dividing by zero, we can't have y = 0. So all of this works as long as y > 0.

3 0
3 years ago
E: f= 3:7<br> f:g= 2:3<br> Work out e:g<br><br> Give your answer in its simplest form.
Alisiya [41]

Answer:

what?

Step-by-step explanation:

...............

5 0
3 years ago
Read 2 more answers
What is the sum of a 6-term geometric series if the first term is 21 and the last term is 1,240,029?
igor_vitrenko [27]
21 times x to the fifth (where x is the ratio between values) equals 1240029
1240029/21=59049
59049^(1/5)=9
so the values are 21, 21*9, 21*9^2, 21*9^3, 21*9^4, 1240029
the sum of these values is 1395030
5 0
3 years ago
Read 2 more answers
Two more than 3times and the number is 17 find the number​
Nonamiya [84]

Answer:

5

Step-by-step explanation:

Let the number be x

Therefore 3times the number will be 3x

3x + 2= 17

3x =17-2

3x=15

x=15/3

x= 5

5 0
2 years ago
THE FASTEST AND CORRECT ANSWER GETS BRAINLIEST!!! ANSWER TO GET BRAINLIEST!!!!!!!!!
jolli1 [7]

Answer:

9 minutes

Step-by-step explanation:

First, you will want to add up all the time spent per problem.

3(9.5)+2(8.25)=45

Then, divide 9 from 45. 45÷5=9.

Therefore, she would have spent 9 minutes per problem.

8 0
3 years ago
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