Determine whether the equation is quadratic.x3 + 3x2 + x = 0
A. Yes
B. No
Answer: B
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Evaluate the function for the given values of a and b. Then use the intermediate value theorem to determine which of the statements below is true.a = 1 and b = 2f(x) = 8x3 - 9x - 3
A. f(1) and f(2) have opposite signs, therefore f does not have a real zero between 1 and 2. B. f(1) and f(2) have the same sign, therefore the intermediate value theorem cannot be used to determine whether f has a real zero between 1 and 2. C. f(1) and f(2) have the same sign, therefore f does not have a real zero between 1 and 2. D. f(1) and f(2) have opposite signs, therefore f has a real zero between 1 and 2.
Divide, if possible. Write the answer in simplest form.3
÷ 9
A. 
B. 
C. 
D. 
Solve.An electronics manufacturer's revenue R for selling x mobile phones is given by 
A competing electronics manufacturer's revenue for selling a similar mobile phone is 
Under what circumstances will both manufacturers make the same revenue?
A. They will make the same revenue if they sell 430 phones. B. They will make the same revenue if they sell 0 or 215 phones. C. They will make the same revenue if they sell 0 or 430 phones. D. They will never make the same revenue.
Solve the problem.Ohm's law relates the current in a circuit, I, in amperes, the voltage of the circuit, V, in volts, and the impedance of the circuit, Z, in ohms, by the formula 
Find V, the voltage of a circuit, if 
and Z = (2 + 4i) ohms.
A. (-32 - 66i) volts B. (28 + 66i) volts C. (-32 + 66i) volts D. (28 - 66i) volts