Question 7 of 10 An arithmetic sequence has this recursive formula:
a = 9
lan = 2,4-3
What is the explicit formula for this sequence?
O A. an=-3+ (n - 1)9
O B. a, = -1 + (n - 9)(-3)
O C. an = 9+ (n-3)(-1)
D. an = 9+ (n - 1)(-3)

What is the solution of log2  (3x  -  7)  =  3? 4 5

On the way home from visiting his family, vincent’s plane cruised at an altitude of 3.2 × 10^4 feet. he had heard that a man named felix baumgartner skydived from an altitude of 1.28 × 10^5 feet. vincent wants to know how much higher felix went on his skydiving trip. question 1 you have already seen how adding numbers works in either scientific notation or standard notation. but can you subtract numbers in scientific notation and get the same results as subtracting in standard notation? to find out, first solve vincent’s problem in standard notation. part a write the cruising altitude of vincent’s plane in standard notation.

Fracisco's game involves 3 green, 2 yellow, 4 red, and 3 black marbles. if he randomly draws three marbles from the bag, without replacement, what is the probability that he will draw yellow, and then red, and then black? a)1/192 b)1/72 c)3/220 d)1/55