Answer:
Step-by-step explanation:
We will find probability of picking yellow in first try (denote as P(y1) )
and then find probability of picking yellow in 2nd try ( denote as P(y2) )
and then multiply both to get our answer.
Total number of marbles = 2 + 3 + 3 = 8 marbles
Of them, 3 are yellow, so
P(y1) = 3/8
Now, since WITHOUT replacement, we have taken a yellow, that means there are now 2 yellow and total will decrease by 1 as well, so total is 7, So
P(y2) = 2/7
Now,
P(y1 and y2) = 3/8 * 2/7 = 6/56 = 3/28
The first one is the correct answer,
Answers: Is 13 Over 3. (13/3)
As you may have noticed, to transform an improper fraction into a mixed number, you must divide the numerator by the denominator. The quotient will be the integer part of the number, and the remainder will be the numerator of the remaining fraction, which will have the same denominator as the original.
Answer:
Step-by-step explanation:
In Problem 6, 3/x = tan 30 degrees, or x/3 = 1 / (tan 30 degrees), or
x = 3 / (tan 30 degrees). Using a calculator: x = 3 / (0.449) = 6.68 units
In Problem 9, we begin by finding the length of the hypotenuse of the upper triangle: sin 60 degrees = 9√3 / hypotenuse, or
hypotenuse = 9√3/ (√3 / 2) = 9/2. Then the hypotenuse of the 45-45-90 triangle is 9/2. Thus, cos 45 degrees = x / (9/2), or
2x √3
---- = -------
9 2
9√3
Cross-multiplying, we get 4x = 9√3, so that x = -------------
4
Answer:
OOH, wooks wike wittle karen needs some help to cheat? awhh, what happened? are you done accusing other people of cheating and now you need to have a go at it??
Step-by-step explanation: