Answer:
D.
Step-by-step explanation:
And we are given that 
and want to find the value of x. Set h(x) to 0 and we get the equation:
Add both sides by 7
Divide both sides by 3
This is the answer (as an improper fraction). Let me know if you need any clarifications, thanks!
The probability can be calculated as given because there are a total of 52 cards.
<h3>What is probability?</h3>
It is defined as the ratio of the number of favourable outcomes to the total number of outcomes, in other words, the probability is the number that shows the happening of the event.
Total number of card = 52
Number of king of heart = 1
P(getting a king of hearts) = 1/52
P(getting a spade) = 13/52 = 1/4
P (getting a 5 or a club) = (16/52) = 4/13
P(getting a 5 or a 7) = 4/52 + 4/52 = 8/52 = 2/13
P(getting a card which is not a spade) = 1 - 1/4 = 3/4
P(getting 11 of clubs) = 1/52
Thus, the probability can be calculated as given because there are a total of 52 cards.
Learn more about the probability here:
brainly.com/question/11234923
#SPJ1
Answer:
1.6
Step-by-step explanation:
it's really 15x-4+20=0
So carry the 20 and you get 15x-4=20
add the 4 and you get 15x=24
So 24 divided by 15 is 1.6
