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schepotkina [342]
4 years ago
11

Write 40 cm as a fraction of 2.8 m. Give your answer in its simplest form.

Mathematics
2 answers:
sladkih [1.3K]4 years ago
5 0
As there are 100cm in a Meter we know that 40/280 =1/7
zysi [14]4 years ago
3 0

Answer:

2.8 m/7

28/70=14*2/35*2=14/35=7*2/7*5=2/5

Step-by-step explanation:

2.8  m=280 cm

40 cm=280cm /7

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Step-by-step explanation:

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4 0
2 years ago
Find lim h→0 f(2+h)-f(2)/h if f(x)=x^2+x+1
bekas [8.4K]

Answer:

5

Step-by-step explanation:

\displaystyle \lim_{h \to 0} \frac{f(2+h)-f(2)}{h}

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\displaystyle\lim_{h \to 0} \frac{4 + 4h + h^2 + h - 4}{h}

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8 0
3 years ago
Solve the system.
liraira [26]

Answer:

Option D is right,.

Step-by-step explanation:

-a+4b+2c=-8   ... i

3a+b-4c=9      ... ii

b=-1                 ... iii

Substitute the value of b, in i and ii

-a-4+2c =-8 or -a+2c = -4

and 3a-1-4c = 9 or 3a -4c =8

Now we have two equations in two variables

-a+2c =-4 and 3a-4c =8

a = 2c+4:  substitute this in the other equatin.

3(2c+4)-4c =8 Or 2c +12 =8

2c =-4 or c = -2

Substitute in -a+2c =12

-a-2 = -4

a = -2+4 =2

a=2, b=-1 and c =-1 is the solution.


6 0
3 years ago
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garik1379 [7]
Ignore the scribbles
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7 0
3 years ago
Will give brainlest 5 star and thans
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Answer:

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Step-by-step explanation:

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3 years ago
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