What is required to have a legally valid contract? a. the contract must contain appropriate legalese. b. the contract must be put in writing. c. the contract must represent a valid agreement between parties. d. the contract must represent a valid agreement between parties and an exchange of something of value between parties must have occurred or been promised to occur

Evaluate the expression for the given value of the variable. 5×(h+3) for h=7

Which of the following functions corresponds to the above sinusoid? a. 10 cos πx - 5 b. -5 sin x - 5 c. -10 cos πx/2 - 0.5 d. 10 sin πx - 5

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).