Results for which equation is correct? translation from Spanish to English

what is correct ?
what is correct ?

what is correct please?
what is correct ?

it is correct to say that:
it is correct to say that:

please check that all the data entered is correct.
please check that all the data entered is correct.

the heat equation is used in probability and describes random walks.
the heat equation is used in probability and describes random walks.

the heat equation is the prototypical example of a parabolic partial differential equation.
the heat equation is the prototypical example of a parabolic partial differential equation.

this equation is relatively accurate for electric field strengths lower than about 108 v m−1.
this equation is relatively accurate for electric field strengths lower than about 108 v m−1.

not useless and the trend is correct, but i don't know how accurate the long term slope is.
not useless and the trend is correct, but i don't know how accurate the long term slope is.

since heat density is proportional to temperature in a homogeneous medium, the heat equation is still obeyed in the new units.
since heat density is proportional to temperature in a homogeneous medium, the heat equation is still obeyed in the new units.

the heat equation is, technically, in violation of special relativity, because its solutions involve instantaneous propagation of a disturbance.
the heat equation is, technically, in violation of special relativity, because its solutions involve instantaneous propagation of a disturbance.

when a refractometer is used, it is correct to report the result as "refractometric dried substance" (rds).
when a refractometer is used, it is correct to report the result as "refractometric dried substance" (rds).

the equation is set up as follows;:formula_72following the additive property for covariant differentiation we get:formula_73.
the equation is set up as follows;:formula_72following the additive property for covariant differentiation we get :formula_73.

== the physical problem and the equation =====derivation in one dimension===the heat equation is derived from fourier's law and conservation of energy .
== the physical problem and the equation =====derivation in one dimension===the heat equation is derived from fourier's law and conservation of energy .

=== brownian motion ===the random trajectory of a single particle subject to the particle diffusion equation (or heat equation) is a brownian motion.
=== brownian motion ===the random trajectory of a single particle subject to the particle diffusion equation (or heat equation) is a brownian motion.

it seems generally agreed that pliny's account of the matter is correct in most of the particulars; and there have been various dissertations on the way in which a statue of venus could have been changed into one of nemesis.
it seems generally agreed that pliny's account of the matter is correct in most of the particulars; and there have been various dissertations on the way in which a statue of venus could have been changed into one of nemesis.

exercise 7 according to the table and considering that bulgaria's total gdp was 54.4 billion eur in 2008, how much industrial waste was generated? country industrial waste per unit of gdp, 2008 municipal waste per capita, 2008 (tonnes per million (kg) norway 100 380 bulgaria 20 460 greece 80 650 slovenia 35 280 a) 108 800 tonnes. b) 1 088 000 tonnes. c) 272 000 tonnes. d) 2 720 000 tonnes. e) none of the above is correct. solution: having a look at the data (we have an amount in billion eur in the statement and others in tonnes per million eur in the table), and especially at the answer options, seeing that there are two pairs very similar, we can guess that an essential issue of this exercise -and the reason why i have included it in our sample questions indeed- is going to be the order of magnitude. note that the interpretation of the calculations according to the question ("how much industrial waste generated in bulgaria") is not difficult: we have 56
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