Homework I, Page 7 of 9 \( x=0 \) to \( x=4 \) around the \( y \)-axis. \( x \) due on October 16,20

7. Dinitrogen tet and \( \Delta \mathrm{S}^{\circ}=176.1 \) states at equilibr a. \( +56.5^{\circ} \mathrm{C} \)

1.) Which of the following is "subtract 8 from 5 and multip Select all that apply a. \( 5-8 \times 2 \) b. \( (5-8) \times 2 \) c. \( 8-5 \times 2 \) d. \( (8-5) \times 2 \) e. \( 2 \times(8-5) \)

Joe is building a post for his mailbox. To find the correct dimensions, he needs to expand this expression: \( (x-3)(x-9)(x-4) \). Select the equivalent expression written in the format \( a x^{3}+b x^{2}+c x+d \). a.) \( x^{3}-16 x^{2}+75 x-108 \) b.) \( x^{3}-10 x^{2}-3 x+108 \) c.) \( x^{3}+10 x^{2}-3 x-108 \) d.) \( x^{3}+16 x^{2}-75 x+108 \)

What is the preduct of the \( 2 x \) and the \( 3 x^{2} y^{2}+x y^{3} ? \) a.) \( 6 x^{3} y^{2}+x y^{3} \) b.) \( 6 x^{2} y^{2}+2 x y^{3} \) c.) \( 6 x^{3} y^{2}+2 x^{2} y^{3} \) d.) \( 6 x y^{2}+x y^{3} \)

CBD. Найдите углы \( A B C \) и CBD. 6. Точки \( A, B \) и \( C \) лежат на одной прммой, \( A B=15 \mathrm{~cm} \), отрезок \( A C \) в 4 раза болыне отрезка \( B C \). Найдите диину отрезка \( A C \).