# High school math questions and answers

Recent questions in Secondary
Zhyar Hoshyar Wali 2022-05-25

### Is there a method for polynomial regression in $2D$ dimensions (fitting a function $f\left(x,y\right)$ to a set of data $X,Y$, and $Z$)? And is there a way to apply a condition to the regression in $2D$ that requires all functions fitted to go through the axis line $x=0$?

VARSANI R 2022-05-24

### 3.1 (10 points) Calculate the density of the atmosphere at the surface of Mars, where the pressure is 650 Pa and the temperature is typically 253 K, with a CO2 (44×10-3 kg/mol) atmosphere., and. (b) Compare each of these densities with that of the earth’s atmosphere, which is 1.20 kg/m3 . 3.2 (5 points) Venus (with an average temperature of 730 K and pressure of 92 atm, with a CO2 atmosphere 3.3 (5 points) Saturn’s moon Titan, where -178 oC the pressure is 1.5 atm and the temperature is with a N2 (28×10-3 kg/mol)atmosphere

VARSANI R 2022-05-24
VARSANI R 2022-05-24