In the diagram shown, AE = 1/3 AC and ED ||CB. Explain why DF must be one-fourth the length of CD.
Pleas help asap

In the past, professional baseball was played at the astrodome in houston, texas. the astrodome has a maximum height of 63.4 m. the height of a baseball t seconds after it is hit straight up in the air with a velocity of 45 ft/s is given by h = -9.8t2 + 45t + 1. will a baseball hit straight up with this velocity hit the roof of the astrodome? use the discriminant to explain your answer.

Ihave trouble finding the nth term of a linear sequence

If x is 6, then 7x= a. 13 b. 42 c. 42x d. 76