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elena55 [62]
3 years ago
7

The SI unit of length is ‘metre’.

Mathematics
2 answers:
galben [10]3 years ago
8 0

Answer:

Converting Units

Step-by-step explanation:

Units like centimeters and kilometers exist

Studentka2010 [4]3 years ago
3 0

Answer:

Step-by-step explanation:

Convert Units

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Q7 Q7.) Find the unit vector in the same direction as v.
igor_vitrenko [27]
Use Pythagorean theorem:

9i-j = sqrt (9^2 - 1^2) = sqrt(81-1) = sqrt80

now divide both terms in V by that:

u = 9/sqrt(80)i - 1/sqrt(80)j

see attached picture: 

7 0
3 years ago
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.Factor 20x2 + 68x - 160
saveliy_v [14]

Answer:

4(5x-8) (x+5)

Step-by-step explanation:

4(5x^2+17x-40)

4(5x-8) (x+5)

3 0
3 years ago
The length of a rectangle is 5 yd longer than its width.
romanna [79]

Answer:

w = 13yd, l = 18yd

Step-by-step explanation:

let x be width, so x+5 = length

Perimeter is sum of all 4 sides, and since opposite sides equal in rectangle,

P = 2(l+w)

  = 2(x+5 +x)

  = 4x + 10

Since perimeter is give as 62yd, equation is

4x + 10 = 62

4x = 52

x = 13

8 0
3 years ago
The sum of two numbers is 25. One of the numbers is fifteen less than the other. Find the numbers.
bija089 [108]

20+5 because 5 is 15 less than 25.

4 0
4 years ago
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Jackie loves to cook fried foods. She recorded the total amount of oil that she used each month in the table below.
SpyIntel [72]
Answer

She used 6/15 litres of oil in January

Explanation

We are given that, in January, she used 3/5 of the amount of oil she used in February.

We are also given that, she used 2/3 litres of oil in February.

Therefore, amount of oil used in January is:

3/5 • 2/3 = 6/15

She used 6/15 litres of oil in January
6 0
3 years ago
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