avagarrett365
contestada

PLEASE ANSWER WILL MARK BRAINLIEST!!

The table shows the soil density of several soil samples at different depths.

(a) Write the quadratic regression equation that models the data. Let x = depth below the surface
and let y = soil density.
(b) Use the equation to estimate the soil density of a sample at a depth of 20 m. Show your work.

PLEASE ANSWER WILL MARK BRAINLIEST The table shows the soil density of several soil samples at different depths a Write the quadratic regression equation that m class=

Respuesta :

vialia

Answer:

(a) y = -0.4931x² + 23.3798x + 996.0289

(b) x = 20

y = -0.4931x² + 23.3798x + 996.0289

y = -0.4931(20)² + 23.3798(20) + 996.0289

y = -0.4931(400) + 467.596 + 996.0289

y = -197.24 + 467.596 + 996.0289

y = 1266.3849

Otras preguntas