Choose the correct simplification of 9x2(4x + 2x2 − 1).

18x4 + 36x3 − 9x2
18x4 − 36x3 + 9x2
36x4 + 18x3 − 9x2
36x4 − 13x3 + 9x2

Sheila wants to bake six muffins but the recipe is for 12 muffins . this means you only need half of the ingredients listed how much of the of each ingredient does she need? one cup and banana chips ,7 tablespoons oil , two eggs, 3/4 cups flour 1/4 cup walnuts show all you work and justify your answer using a baby toulmin.

Express the following as a function of a single angle. cos(60) cos(-20) - sin(60) sin(-20)

Someone answer this check out the image!