Find all real solutions of the equation, approximating when necessary (hint: answer is not A) x^{3}+4x^{2}+10x+15=0
A) x=2.426
B) x=-2.426
C) x=5.218
D) x=-5.218

Joanie watched 1 out of three of a movie in the morning

If the car had not hit the fence, how much farther would it have skidded? solve the skid-distance formula to find the extra distance that the car would have traveled if it had not hit the fence. round your answer to two decimal places. note that unit conversion is built into the skid distance formula, so no unit conversions are needed.

Amass weighing 16 pounds stretches a spring 8/3 feet. the mass is initially released from rest from a point 2 feet below the equilibrium position, and the subsequent motion takes place in a medium that offers a damping force that is numerically equal to 1/2 the instantaneous velocity. find the equation of motion if the mass is driven by an external force equal to f(t)=cos(2t).