How to use a trigonometric function to find the value of x

Select the correct answer from each drop-down menu. rewrite the formula to find voltage. the formula for electrical power (p, in watts) is where v is the voltage in volts and r is the resistance in ohms. for a particular brand of water heater, r is 32 ohms and p is 0.5 watts. the formula to find v is , and the voltage at which the heater operates is volts.

Evaluate the following expression 1/3^2

Two times a number plus three times another number equals 4. three times the first number plus four times the other number is 7. find the numbers