I think it would be the last one from my calculations im not positive but its what makes sense.
Answer:
y= 7/2x - 2
Step-by-step explanation:
Answer:
20
Step-by-step explanation:
25% change to .25
.25 x 80
Just solve 25 x 80 which equals 2000
then move decimal over twice giving you 20.00 or 20
<h3>
Answer: 1.21</h3>
Work Shown:
z = (x - mu)/sigma
z = (72.4 - 69.0)/(2.8)
z = (3.4)/(2.8)
z = 1.2142857 .... which is approximate
z = 1.21
Answer:
Step-by-step explanation:
When the three cards are removed, the sample space becomes 49.
Probability of a heart = 13/49. No hearts were removed from the deck.
Probability of a king = 3/49. One king was removed from the deck.
Probability of the 10 of hearts = 1/49. There's only one 10 of hearts in the deck, and it was not removed.
Probability of a black face card = 3/49. Three of the black face cards were removed, so all that is left are the king, queen, and jack of clubs.
Probability of an ace OR a queen = 7/49 = 1/7. There are 3 queens and 4 aces remaining in the deck.
