Question

5 multiple choice 2 points from 1900 to 1912, the olympic mens winning pole vault height was $h(t)=2t + 130$ inches, where $t$ is years since 1900. what are the units on the \130\ in the formula? inches years per inch years inches per year clear my selection

Explanation:

Step1: Analyze the function

The function $H(t)=2t + 130$ gives the height in inches. The two terms on the right - hand side must have the same units since they are added together.

Step2: Determine units of $2t$

The variable $t$ is in years. The coefficient 2 has units of inches per year (because when multiplied by $t$ (in years), the product $2t$ has units of inches).

Step3: Find units of 130

Since $2t$ and 130 are added to get $H(t)$ (height in inches), 130 must also have units of inches.

Answer:

inches