The phrase "both formulas" is correct and usable in written English.
It is typically used to refer to two specific formulas that are being compared or discussed together. Example: "Both formulas are necessary for solving this equation correctly."
Yet both formulas resonated loudly.
Both formulas are mint-scented and contain Vitamin E ($29 each at exudelipstick.com).com
Both formulas require the same seven pieces of information: age, sex, total cholesterol, "good" HDL cholesterol, smoking status, systolic blood pressure and whether one takes drugs for hypertension.
Both formulas tend to reward the strongest party disproportionately and to handicap weaker parties, though these parties may escape the inequities of the system if their support is regionally concentrated.
In particular, both formulas derived from the closed form solution of equilibrium equations and a formula derived by approximating the closed form solution through an exponential law are here presented.
The really difficult problem, though, is to show that the constant of proportionality for the circumference is precisely twice the constant of proportionality for the area that is, to show that the constant now called π really is the same in both formulas.
Both formulae were stored at 40 °C/75% RH for 3 months according to ICH guidelines.
As the Finn's career went onwards and upwards, McNish's gradually stalled after inconclusive performances in both formula three and F3000.
Since the overestimation is greater than the uncertainty between both formulae, a better analytical model is required.
Through the designed experiment, we observed that both formulae considerably extenuated the energy loss arisen from strikes, which was equivalent to an overestimation of the calculated penetration force.
As a continual approach to assess both formulae, this study provides an energy-based comparison between a DCP and a motor-operated static cone penetrometer (SCP).
