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Zepler [3.9K]
3 years ago
11

Jeez math help please!!!!!

Mathematics
1 answer:
viva [34]3 years ago
4 0
(3y^7)^3      3^3*y^(7*3)              
------------ = ------------------   
    9y^9           9*y^9

(3y^7)^3      3^3*y^(7*3)        27*y^21      (mult. together the exponents 3 and 7)
------------ = ------------------ = --------------
    9y^9           9*y^9                 9*y^9

That 27/9 reduces to 3.     y^(21) / y^9  reduces to y^12.

Thus, we obtain           3*y^12   (answer)

Please do the next one, asking questions if need be, and showing your work.

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A 3 m spring requires 12 J to stretch to 3.1 m. How much work is required to stretch the spring to 3.2m?
Cerrena [4.2K]
I DONT KNOW BROOjssj
7 0
2 years ago
What is -1.1 repeating as a fraction
Thepotemich [5.8K]

Hey \\ There!

\frac{-1.1}{1} ( \frac{10}{10} )\\ \\ -1.1(10) = -11   \\ \\ 1(10)= 10 \\ \\ \\  Fraction:  \frac{-11}{10} this is also equal to: -1\frac{1}{10}

Your answer would probably be: \frac{-11}{10} =  -1\frac{1}{10}

Good luck on your assignment and enjoy your day! 

~MeIsKaitlyn:)
4 0
3 years ago
How many solutions does this linear system have?
ziro4ka [17]

Answer: C is correct, No solution

Step-by-step explanation:

Let’s simplify the second equation,

8x-4y=-20

We can divide the whole equation by 4...

8x/4-4y/4=-20/4

Which becomes....

2x-y=-5

Now let’s move things around to see if it’s the same equation as the one on top...

-y=-2x-5

y=2x+5

Now we need to solve the systems...

y=2x-5

y=2x+5

Since their slopes are both 2 and their y-intercepts are not identical, the answer is no solution. The two lines will continue on without ever crossing because they have the same slope.

4 0
3 years ago
Help me please I need to do my unit testtt
Luda [366]

Answer:

B.

Step-by-step explanation:

Although the numbers given are negative, we can see that by the lines surrounding them, it is asking for their absolute value. Since absolute values are always positive, the correct answer would be B.

5 0
2 years ago
Adele Swam the length of the pool in 32.56 seconds. Alexandria swam the length of the pool in 29.4 seconds. How many seconds fas
Sati [7]

Answer

Find out how many seconds faster has Alexandria's time then Adele's time .

To proof

Let us assume that seconds faster has Alexandria's time then Adele's time be x.

As given in the question

Adele Swam the length of the pool in 32.56 seconds. Alexandria swam the length of the pool in 29.4 seconds.

Than the equation becomes

x = 32.56 - 29.4

x = 3.16 seconds

Therefore the 3.16 seconds faster has Alexandria's time then Adele's time .

Hence proved


7 0
3 years ago
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