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andriy [413]
3 years ago
9

PLEASEEEE HELPP MEEE WITHHH NUMBERSSS 9 AND 10 PLEASEEE HELPPP MEEEEE!!!!!!!!

Mathematics
1 answer:
notsponge [240]3 years ago
8 0

Answer:

hi dont report me we are friends

Step-by-step explanation:

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The value of a machine when new is £8000. The value depreciates by 10% each year. Work out its value after 3 years
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5,600

8000*.10(y)
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3 years ago
Given: 1; -5; -13 ; -23 ; ...<br><br> Derive a formula for the nth term in the pattern.
mylen [45]

Answer:

  f(n) = -n^2 -3n +5

Step-by-step explanation:

Suppose the formula is ...

  f(n) = an^2 +bn +c

Then we have ...

  f(1) = 1 = a(1^2) +b(1) +c

  f(2) = -5 = a(2^2) +b(2) +c

  f(3) = -13 = a(3^2) +b(3) +c

__

Here's a way to solve these equations.

Subtract the first equation from the second:

  -6 = 3a +b . . . . . 4th equation

Subtract the second equation from the third:

  -8 = 5a +b . . . . . 5th equation

Subtract the fourth equation from the fifth:

  -2 = 2a

  a = -1

Then substituting into the 4th equation to find b, we have ...

  -6 = 3(-1) +b

  -3 = b

and ...

  1 = -1 +(-3) +c . . . . . substituting "a" and "b" into the first equation

  5 = c

The formula is ...

  f(n) = -n^2 -3n +5

3 0
3 years ago
A sculpture is in the shape of a square pyramid. The sculpture has a height of 6 meters and a volume of 50 cubic meters. Find th
Anton [14]

Answer : a link for your answer<em> https://quizlet.com/140197143/surface-area-and-volume-surface-area-of-rectangular-pyramids-flash-cards/</em>

<em>Step-by-step explanation:</em>

4 0
3 years ago
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What is 3 to the 5th power?
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729 is 3 to the 5th power 

3 x 3 x 3 x 3 x 3 is 729
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Rachel enjoys exercising outdoors. Today she walked 5 2/3 miles in 2 2/3 hours. What is Rachel’s unit walking rate in miles per
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5 2/3 divided by 2 2/3 = 17/3 divided by 8/3 = 17/8 = 2 1/8 miles per hour

2 2/3 divided by 5 2/3 = 8/3 divided by 17/3 = 8/17 hours per mile
5 0
1 year ago
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