A2 + b2 = c2 1. The voltage V of a speaker can be represented by the equation, V = V9x, where x is the power of
the speaker. James wants to buy a speaker with 400 watts of power. What will the voltage be?
2.
2. The hull speed of a sailboat is calculated using the formula V = 1.35VI, where V is the velocity in
knots and L is the waterline length in feet. Brooke is planning on buying a boat with a maximum speed
of 20 knots. How long should the waterline be?
3. A recent study shows that the price of a Toyota Camry is calculated by the function
P = 25,000V150 - 7.5t, where t is time in years. When will a Toyota Camry be worth 20% of the original
price of $25,000?