10 ь, If d = 10 inches, c = 9 inches, b = 6 inches, and h = 5 inches, what is the area of the triangle above? A. 25 sq in. B. 15 sq in C. 27 sq in. D. 30 sq in. HELP ASAP
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A.s.a.! similarity in right triangles, refer to the figure to complete this proportionc/a = a/? a.) cb.) hc.) rd.) s

The difference of three and the reciprocal of a number is equal to the quotient of 20 and the number. find the number.

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).