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Nezavi [6.7K]
3 years ago
6

Divide do not round your answer 54.9÷ 6.1 please help ............​

Mathematics
1 answer:
Oxana [17]3 years ago
4 0

Answer:

it's is 9. . .......................

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Write the formula for the sum of 7 consecutive numbers if the first number is m. \
vlabodo [156]

Answer:

Step-by-step explanation:

If you have an odd number of consecutive numbers, the middle number should be x. So 7 of them would be written as

(x - 3)+(x - 2) + (x - 1) + x + (x + 1) + (x + 2) + (x+3)

That way all you are left with is 7x because the integers cancel.

That is not your question

You question is

Sum = m+(m + 1)  + (m + 2) + (m + 3) + (m + 4) + (m + 5) + (m + 6)

3 0
3 years ago
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Find three real numbers​ x, y, and z whose sum is 6 and the sum of whose squares is as small as possible. g
mart [117]
We're minimizing x^2+y^2+z^2 subject to x+y+z=6. Using Lagrange multipliers, we have the Lagrangian

L(x,y,z,\lambda)=x^2+y^2+z^2+\lambda(x+y+z-6)

with partial derivatives

\begin{cases}L_x=2x+\lambda\\L_y=2y+\lambda\\L_z=2z+\lambda\\L_\lambda=x+y+z-6\end{cases}

Set each partial derivative equal to 0:

\begin{cases}2x+\lambda=0\\2y+\lambda=0\\2z+\lambda=0\\x+y+z=6\end{cases}

Subtracting the second equation from the first, we find

2x-2y=0\implies x=y

Similarly, we can determine that x=z and y=z by taking any two of the first three equations. So if x=y=z determines a critical point, then

x+y+z=3x=6\implies x=y=z=2

So the smallest value for the sum of squares is 2^2+2^2+2^2=12 when (x,y,z)=(2,2,2).
8 0
3 years ago
3 ( x + 8 ) = 5 -1/2 ( 8x + 18 )
Contact [7]

Answer:

x=-4

Step-by-step explanation:

7 0
3 years ago
Are two lines that lie in parallel planes always parallel?
zhannawk [14.2K]
Of course not.

-- Take a washable marker, and give your little sister another washable marker.

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-- When you say 'GO', both of you draw a straight line on the wall.
   Then look at the lines.

-- The front and back walls are parallel planes, but it would be
amazing if the two lines are parallel.  One could even be a
horizontal line and the other a vertical one . . . definitely not parallel. 
7 0
3 years ago
carey, jake, and Evab collect baseball cards. Carey has 305 cards, carey has morcarey has 187 more cards than jack and evan has
Doss [256]
I'm pretty sure it would be 118 but I might be wrong
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3 years ago
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