F(x) = -2(x + 3)(x - 7). When graphed, ti Write the left x-intercepts atandwrite left x intercepts first write the x-intercepts as ordered pairs :(a, b)
​

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.

Determine whether the set of whole numbers is closed under addition. explain why the set is or is not closed. give an example.

Marco has $38.43 dollars in his checking account. his checking account is linked to his amazon music account so he can buy music. the songs he purchases cost $1.29. part 1: write an expression to describe the amount of money in his checking account in relationship to the number of songs he purchases. part 2: describe what the variable represents in this situation.