The phrase "apply a combination" is correct and usable in written English.
It can be used when discussing the implementation of multiple elements or methods together to achieve a specific result.
Example: "To solve this complex problem, we need to apply a combination of analytical techniques and creative thinking."
Alternatives: "utilize a mix" or "implement a blend".
We review and combine existing methods of analysing and modelling relative growth rates and apply a combination of methods to Sitka spruce (Picea sitchensis (Bong).
For the numerical simulation we apply a combination of the extended finite-element method (X-FEM) [N.
MAGNet investigators apply a combination of knowledge-based and physics-based methods to study the organizational principles that underlie the operation of cellular networks.
In this effort we apply a combination of theoretical and experimental approaches, both of which contribute directly to the completion of such a project.
We apply a combination of the multiple conformation statistical thermodynamic approach and variational transition-state theory (VTST) to obtain dynamic multi-path rate coefficients (kMP-T-VTST and kMP-LH-VTST).
In this work we apply a combination of molecular dynamics and phase field crystal simulations to investigate stress-driven motion of asymmetrical GBs between cubic crystals over the entire range of inclination angles.
The ambition is to reduce the energy consumption of organisations by applying a combination of relevant technology and behavioural design.
A qualitative approach is then applied (a combination of insights around efficiency gains of open data and real-life examples) and an estimate is reached.
This study applied a combination of both qualitative and quantitative research methodologies.
YouGov applies a combination of matching and weighting to the original panel to produce a representative sample, and the weights often make a substantial difference.
