I lake near the Arctic Circle is covered by sheet of ice during the cold winter months. When spring arrives, the ice starts to melt. S models the ice sheet's thickness (in meters) after t weeks. S=-0.25 t+4 What is the ice sheet's thickness at the beginning of spring? meters

Identify Equation: Identify the given equation for the ice sheet's thickness. The equation provided is S = -0.25t + 4, where S represents the ice sheet's thickness in meters and t represents the time in weeks after the beginning of spring.Determine Time Value: Determine the value of t at the beginning of spring. At the beginning of spring, t = 0 weeks, because no time has passed since the start of the melting period.Substitute and Calculate: Substitute t = 0 into the equation to find the ice sheet's thickness at the beginning of spring. S = -0.25(0) + 4 S = 0 + 4 S = 4 metersVerify Calculation: Verify that the calculation is correct and no math errors have been made. The calculation is straightforward: multiplying zero by any number results in zero, and adding four to zero gives four.

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A lake near the Arctic Circle is covered by sheet of ice during the cold winter months. When spring arrives, the ice starts to melt. $\newline$ $S$ models the ice sheet's thickness (in meters) after $t$ weeks. $\newline$ $S=-0.25t+4$ $\newline$ What is the ice sheet's thickness at the beginning of spring? $\newline$ $meters$

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Q. A lake near the Arctic Circle is covered by sheet of ice during the cold winter months. When spring arrives, the ice starts to melt.

\newline

S

models the ice sheet's thickness (in meters) after

t

weeks.

\newline

S=-0.25t+4

\newline

What is the ice sheet's thickness at the beginning of spring?

\newline

meters

Identify Equation: Identify the given equation for the ice sheet's thickness. $\newline$ The equation provided is $S = -0.25t + 4$ , where $S$ represents the ice sheet's thickness in meters and $t$ represents the time in weeks after the beginning of spring.
Determine Time Value: Determine the value of $t$ at the beginning of spring. $\newline$ At the beginning of spring, $t = 0$ weeks, because no time has passed since the start of the melting period.
Substitute and Calculate: Substitute $t = 0$ into the equation to find the ice sheet's thickness at the beginning of spring. $S = -0.25(0) + 4$ $S = 0 + 4$ $S = 4$ meters
Verify Calculation: Verify that the calculation is correct and no math errors have been made. The calculation is straightforward: multiplying $0$ by any number results in $0$ , and adding $4$ to $0$ gives $4$ .