In what ways does Martha's use of the service to communicate with Ash's digital copy impact h grieving process? Is it a healthy way to cope with loss? Why or why not? E.g. Martha's use of the service impacted her grieving process by _ it is/is not a healthy way to with loss because -

For a nonzero constant a, find the intercepts of the graph of \( \left(x^{2}+y^{2}\right)^{2}=a^{2}\left(x^{2}-y^{2}\right) \). Then test for symmetry with respect to the \( x \)-axis, the \( y \)-axis, and the origin. What are the intercepts? Select the correct choice below and, if necessary, fill in the answer box to complete your choice. A. The intercept(s) is/are (Use a comma to separate answers as needed. Type an ordered pair.) B. There are no intercepts. Test ( \( \left.x^{2}+y^{2}\right)^{2}=a^{2}\left(x^{2}-y^{2}\right) \) for symmetry with respect to the \( x \)-axis, the \( y \)-axis, and the origin. Select all that apply. A. The graph of the equation is symmetric with respect to the \( x \)-axis. B. The graph of the equaxtion is symmetric with respect to the \( y \)-axis. C. The graph of the equation is symmetric with respect to the origin. \( \square \) D. The graph of the equation is not symmetric.

¿Cuanto es \( 300-400 \) ? \( \begin{array}{llll}\text { A) } 1000 & \text { B) }-1000 & \text { c) } 2000\end{array} \)

Question \( 10,5.3 .79 \) A ball is thrown straight upward. The function \( f(t)=-16 t^{2}+64 t \) describes the ball's height above the ground, \( f(t) \), in feet, \( t \) seconds after it is thrown. \( 90 \%, 9 \) of 10 points Complete parts a through \( c \). a. Find \( f(1) \). \( f(1)=\square \)

Ejemplos: 1) \( 5 x+4=20 \) 2) \( 5 x^{2}+2 x=8 \) 3) \( 4 x^{3}+3 x^{2}+2 x=2 \)

В треугольнике \( A B C \) известно, что \( A B=5, B C=7 \) \( A C=9 \). Найдите \( \cos \angle A B C \).