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tatiyna
3 years ago
13

A inversely as x, and y=23 when x=8, find when x=4

Mathematics
1 answer:
Feliz [49]3 years ago
6 0

Answer:

  • y=1/x
  • y=k/x
  • k=yx
  • given y=23,x=8
  • k=23×8=184
  • when x=4
  • y=184/4=46ans

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Find the general term of the sequence<br>c.1 { 10, 5, 0, -5, -10 }<br>c.2 { 1, 4, 9, 16, 25 }​
Ivan

Answer:

1. 15 - 5n where n>=1

2. n² where n>=1

Step-by-step explanation:

1. {10, 5, 0, -5, -10} is an Arithmetic Progression

nth term is a + (n - 1)d

where a = first term, n= nth term, d= common difference.

a = 10, d = -5 (5-10, 0-5, -5-0, -10-(-5))

Therefore, nth(General) term of the sequence:

= 10 + (n - 1)-5

= 10 + (-5n) + 5

= 10 + 5 - 5n

= 15 - 5n

Test:

if n = 1; 15 - 5(1) = 10

if n = 2; 15 - 5(2) = 5

if n = 3; 15 - 5(3) = 0 and so on.

2. {1, 4, 9, 16, 25}

The general term of the sequence is n²

Test:

if n = 1; 1² = 1

if n = 2; 2² = 4

if n = 3; 3² = 9 and so on.

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2 years ago
There are 500 computers in an office building. The IT manager randomly chose 40 computers to be inspected for viruses. Of those
EastWind [94]
About 75 computers have a virus
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2 years ago
How do you subtract the following fraction to find the solution?<br> 5 - 4/9
garri49 [273]
Here 5 - 4/9 
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Hence, above fraction becomes,
45/9 - 4/9 = (45 - 4) / 9 = 41 / 9
Hope it helps.
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Chicago has a temperature of -8°F. Seattle has a temperature colder than Chicago. Select all value that could represent the temp
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Answer:

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Step-by-step explanation:

we are looking for a temperature that is less than -8

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Step-by-step explanation:

8 0
3 years ago
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