Formulas play an important part in many fields of mathematics and science. You can create a new formula using substitution to combine formulas.
a. Using the formulas A = s2 and d = s√2 write a formula for A in terms of d.
b. Using the formulas P = IE and E = IR, write a formula for P in terms of I and R.
c. Using the formulas A = πr2 and C = 2πr, write a formula for A in terms of C.