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3 years ago

The sum of two numbers is 48 and the difference is 4. what are the numbers?

Mathematics

1 answer:

alexandr1967 [171]3 years ago

5 0

Answer:

22 and 26

Step-by-step explanation:

48-4= 44

44÷2= 22 (first no.)

22+4= 26 (second no.)

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Step-by-step explanation:

Let define some notation:

[L]= represent longitude , [T] =represent time

And we have defined:

s(t) a position function

$v = \frac{ds}{dt}$

$a= \frac{dv}{dt}$

Part a

If we do the dimensional analysis for v we got:

$v = \frac{[L]}{[T]} = LT^{-1}$

Part b

For the acceleration we can use the result obtained from part a and we got:

$a = \frac{[L}{T}^{-1}]}{{T}}= L T^{-1} T^{-1}= L T^{-2}$

Part c

From definition if we do the integral of the velocity respect to t we got the position:

$\int v dt = s(t)$

And the dimensional analysis for the position is:

$\int v dt = s(t) = [L]=L$

Part d

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$\int a dt = v(t)$

And the dimensional analysis for the position is:

$\int a dt = v(t) = [L][T]^{-1}=LT^{-1}$

Part e

If we take the derivate respect to the acceleration and we want to find the dimensional analysis for this case we got:

$\frac{da}{dt}= \frac{[L][T]^{-2}}{T} = [L][T]^{-2} [T]^{-1} = LT^{-3}$

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<span>The GPF is 2.

Happy studying^_^

</span>

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3 years ago

The sum of two numbers is 48 and the difference is 4. what are the numbers?​

The sum of two numbers is 48 and the difference is 4. what are the numbers?