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Nonamiya [84]
3 years ago
14

Simplify -2/3 squared 63x^3

Mathematics
1 answer:
OverLord2011 [107]3 years ago
3 0

the answer is

- 2x \sqrt{7x}

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The variable y is directly proportional to the variable x. If y = 32 when x = 20, what is the value of x when y = 40?
elena55 [62]

Answer:

The Correct option is C ) 25

Therefore the value of x is 25 when y =40.

Step-by-step explanation:

Given:

Variable 'y' is directly proportional to the variable 'x'.

\therefore y=kx     ......Direct Variation

Where,

k = Constant of proportionality

To Find:

value of x = ? when y = 40

Solution:

First we need to find Constant of proportionality

When x = 20 and y = 32

Substituting the values we get

32=k\times 20\\k=\dfrac{32}{20}=1.6\\\\k=1.6

Now when k =1.6 , y = 40 then x will be

40=1.6\times x\\\\x=\dfrac{40}{1.6}=25\\\\x=25

Therefore the value of x is 25 when y =40.

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Answer:

B

Step-by-step explanation:

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Andrew [12]
5 is the value ahhahaha
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Find the first five terms of the sequence below <br> a1=3<br> An=an-1+6
mihalych1998 [28]
The first dove terms are:3,9,12,15,18
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Solve - 1.2x + 2.5 = 0.8x + 6.5
lesantik [10]

Answer: x is -2

Steps:

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x =  4/-2

x = - 2

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