An arithmetic sequence has this recursive formula: (a=7
1er = 8-1-4
What is the explicit formula for this sequence?
O A. an = 7 + (n - 4)(-1)
B. an=-4+(n-1)7
O C. an = 7+ (n-1)(-4)
D. a, = (-1) + (n - 7)(-4)

In which figure is de bc ? a. figure 1 b. figure 2 c. figure 3 d. figure 4

Which statement is true? the given sides and angles cannot be used to show similarity by either the sss or sas similarity theorems. the given sides and angles can be used to show similarity by the sss similarity theorem only. the given sides and angles can be used to show similarity by the sas similarity theorem only. the given sides and angles can be used to show similarity by both the sss and sas similarity theorems.

Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. x^2 - 4x - 5 = 0