What is the difference 4y/xy - 2x/xy^3

Answers

Answer 1

Answer: $(4y)/(xy)-(2x)/(xy^3)=(4)/(x)-(2)/(y^3)\n\n\n(4y)/(xy)-(2x)/(xy^3)=(4y^3)/(xy^3)-(2x)/(xy^3)=(4y^3-2x)/(xy^3)$

Answer 2

Answer: Hi Kally

Here is what I was able to come up!

4/x-2/x^2y^3

Double check it ok...

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What should be added to 4c (– a + b + c) to obtain
3a (a + b + c) – 2b(a – b + c)?

Answers

Step-by-step explanation:

here hope it is helpful

the writing is not mine so yeah

PLSSSSSSSSSSSSSSSSSSS HELPPPPPPPPPPPPPPPPPPP!!!!GUARaNTEE REWARDAmanda earned a score of 940 on a national achievement test that was normally distributed. The mean test score was 850 with a standard deviation of 100. What proportion of students had a higher score than Amanda? Use your z table.

Answers

To solve this question, you¨ll need to use a table of the standardized Normal distribution, or you could use a graphing calculator. The answer will be the cumulative property which will be a number with decimals. However, this represents the students who had a lower score then her, You´ll need to subtract this from 1 in order to get the opposite number, which will be the kids who scored higher. Be sure to multiply the result by 100 to get a percentage. Your answer should be 0.806 hope this helped!

Sum of two digit number is9.When we interchange the digits it is found that the resulting new number becomes twice the other number. What are the numbers

Answers

Answer:

4 and 5

Step-by-step explanation:

Let the numbers be x and y

If their sum is 9, hence;

x + y = 9 ....1

When reversed

10y+x = 2(10x+y)

10y+x = 20x + 2y

10y - 2y = 20x - x

8y = 19x

y = 10x/8 ...2

Substitute equation 2 into 1;

From 1;

x+y = 9

x +(10x/8) = 9

18x/8 = 9

18x = 72

x = 72/18

x = 4

Since x+y =9

y = 9-x

y =9-4

y = 5

Hence the numbers are 4 and 5

0.05 is ten times as much as

Answers

0.5
you just need to move the dot to the right

.05 is ten times more than a number so if x is the number, 10x=.05
x=.005

solve quadratic equation by factoring How do you do it 3k^2 + 72 = 33k

Answers

its going to be 33k -9k= 24k divided by 72 is 3. u do 72 ÷ 24 = 3

Please solve, -8-2(7r+1)=-94

Answers

Answer:

r = 6

Step-by-step explanation:

Hello!

-8 - 2(7r + 1) = -94

Add 8 to both sides

-2(7r + 1) = -86

Divide both sides by -2

7r + 1 = 43

Subtract 1 from both sides

7r = 42

Divide both sides by 7

r = 6

Hope this Helps

-8-14r-2=-94
-10-14r=-94
-14r=-84
r=6

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