The ODE has characteristic equation

with roots
, and hence the characteristic solution

For the particular solution, assume an ansatz of
, with derivatives


Substituting these into the ODE gives

so that the particular solution is

(8/9) / (1/4) =
8/9 * 4/1 =
32 / 9 =
3 5/9 ........she can make 3 5/9 one-fourth cup servings
Answer:
b c e
Step-by-step explanation:
To make pastry for an apple pie, you need 4 oz flour and 2 oz fat. The ratio of flour to fat is
4 : 2 .
But this ratio can be simplified in the same way that two fractions can be simplified. We just
cancel by a common factor. So
4 : 2 = 2 : 1 .