Solve triangle abc given that a=56 b=57 b=9
a) c=64, a=10.2, c=9.8
b) c=67, a=10.2, c=9.88
c) c=67, a=8.9, c=9.88
d) c=66, a=8.7, c=9.88

Find the value of x for which abcd must be a parallelogram -9-6x x-30

Which approach to the theory-and-research cycle does the following sequence reflect: (1) specific observations suggest generalizations, (2) generalizations produce a tentative theory, (3) the theory is tested through the formation of hypotheses, and (4) hypotheses may provide suggestions for additional observations?

Lee has $1.75 in dimes and nickels. the number of nickels is 11 more than the number of dimes. how many of each coin does he have?