Heart Rate and Population Estimation

The video tutorial covers four examples of solving application problems using formulas. It starts with calculating the maximum heart rate for a 40-year-old using a given formula. Next, it demonstrates how to find the height of a golf ball after 3 seconds using a quadratic equation. The third example involves calculating the future value of a savings bond with simple interest. Finally, the video estimates the US population for the years 1995 and 2016 using an exponential growth formula.

What is the formula used to calculate the recommended maximum heart rate for a person based on their age?

• M = 0.8 * (220 - a)

• M = 220 - 0.8 * a

• M = 0.8 + (220 - a)

• M = 220 * 0.8 - a

If a person is 40 years old, what is their recommended maximum heart rate in beats per minute?

• 200 bpm

• 180 bpm

• 144 bpm

• 160 bpm

What is the equation used to calculate the height of a golf ball after T seconds?

• H = 80T - 16T^2

• H = -80T + 16T^2

• H = 16T^2 - 80T

• H = -16T^2 + 80T

After 3 seconds, what is the height of the golf ball above the ground?

• 144 feet

• 96 feet

• 80 feet

• 120 feet

What is the formula for calculating simple interest?

• A = P + PRT

• A = P + RT

• A = PRT + P

• A = P * R * T

If Sally invests $1,000 at a 4% annual interest rate, what will be the value of her investment after 5 years?

• $1,100

• $1,500

• $1,200

• $1,040

What is the base year used in the population estimation formula?

• 2010

• 1990

• 1995

• 2000

Using the population estimation formula, what was the estimated population of the US in 1995?

• 300 million

• 266 million

• 321 million

• 250 million

In the year 2016, what was the estimated population of the US according to the formula?

• 400 million

• 350 million

• 266 million

• 321 million

What is the growth factor used in the population estimation formula?

• 1.9

• 2.0

• 1.8

• 1.5