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The probability of getting 2 jelly beans out of n sweets, where 2 of them are jelly beans, is 2/n(n-1).
What is Probability?It is a branch of mathematics that deals with the occurrence of a random event.
The probability of getting 2 jelly beans out of n sweets, where 2 of them are jelly beans, can be calculated using the formula for probability:
P(2 jelly beans) = (number of ways to get 2 jelly beans) / (total number of possible outcomes)
The total number of possible outcomes is the number of ways to choose 2 sweets out of n, which is given by the combination formula:
ⁿC₂= n! / (2!(n-2)!)
The number of ways to get 2 jelly beans is simply 1, since there are only 2 jelly beans in the box and we are choosing 2 sweets.
So, the probability of getting 2 jelly beans is:
P(2 jelly beans) = 1 / (ⁿC₂)
= 1 / (n! / (2!(n-2)!))
= 2 / n(n-1)
Hence, the probability of getting 2 jelly beans out of n sweets, where 2 of them are jelly beans, is 2/n(n-1).
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True or false? The ½ in the function g(x)=½ sqrt x-1 is x>-1
Answer:
true
Step-by-step explanation:
what is the constant rate change shown in the graph below?
Answer:
the two points be
(0,0) and (1,-3)
slope [m]=[-3-0]/[1-0]=-3
constant rate is-3.
PLSSSS I NEED HELP NOW!!! There are 30 markers in a bag. There is at least 1 red marker among any 12 randomly selected markers, and there is at least 1 black marker among every 20 randomly selected markers. How many red markers are in the the bag?
Answer:
Step-by-step explanation:2 /3 red markers in the bag
In the figure, c || d. what are the measures of angle 1 and angle 2?
Answer:
Angle 1 = 105
Angle 2 = 75
Step-by-step explanation:
Angle 2 and angle 75 are corresponding angles.
Corresponding angles are equal.
So,
Angle 2 = 75
Angle 1 and angle 2 are linear pair angles.
Angle 1 + Angle 2 = 180
Angle 1 + 75 = 180
Angle 1 = 180 - 75
Angle 1 = 105
y = 4/5x - 5
y = -5/4x - 5
y = -4/5x - 5
y = 4/5x + 5
Answer:
The answer is the 3rd one.
GIVING BRAINLY FOR WHOEVER ANSWERS THIS
Answer:
20%
Step-by-step explanation:
Probability is always expressed as a part of a whole, thereby in fractions or percentages. From the statistics gathered, it said that 80% of the time, the plane arrives right on schedule in El Centro. That means that the probability of NOT arriving on time is the other portion, which is 20%. The answer is 20%.
What is the solution to the equation below? Х = 4 -3
Answer:
If there's no other variables involved.
x=1
Answer:
x = 1
Step-by-step explanation:
x = 4 - 3
4 - 3 = 1
Hence, x = 1
prove that P(A∩B)=P(A)∩P(B) for all sets A,B.
Step-by-step explanation:
let,
p(A)={1,2,3,4}
p(B)={3,4,5,6}
p(AnB)={3,4}
now,
p{AnB)=P(A)nP(B){3,4}={1,2,3,4}n{3,4,5,6}{3,4}={3,4}LHS=RHS. proved.
hope it helps.
stay safe healthy and happy.Find the measure of the exterior angle.
Step-by-step explanation:
exterior angle
-> (4x + 6)° = x + 102°
3x = 102° - 6°
3x = 96°
x = 32°
4x + 6°= 4×32° + 6° = 128 + 6 = 134°
▪︎The property that satisfies –14 + 6 = –8 (Integer) is:
(a) The associative property
(b) the commutative property
(c) the closure property
(d) the distributive property
Answer:
commutative properties satisfies the property.
If Michelle can ride her bike 5 miles in 20 minutes, how far can she ride her bike in 50 minutes?
A-7.5 miles
B-10.5 miles
C-12.5 miles
D-15 miles
C-20 miles
Answer:
B-10.5 miles
Step-by-step explanation:
SANA PO MAKATULONG
PAKIFOLLOW PO
PLZ ANSWER Which one of these methods finds the volume of the given figure?
I think it's the second one on the top, because the dotted one is actually inside the bigger one and you can get a clear representation of the sizes.
Answer:
Top right
Step-by-step explanation:
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PLEASEEE HELP ME FIND THE SURFACE AREA
Will mark brainliest!!
Answer:
100.48
Step-by-step explanation:
Surface area of a cylinder = [tex]2\pi r^2+2\pi rh[/tex]
Where r = radius and h = height
We are given the diameter ( 4 cm ) and the height ( 6cm )
To convert diameter to radius we simply divide by 2 ( because radius = half the length of the diameter )
4 / 2 = 2 Thus, r = 2
Now we plug in the values of the radius and height into the surface area of a cylinder formula ( note we must use 3.14 for π as the question says to. not doing so can result in a wrong answer )
[tex]SA=2(3.14)(2^2)+2(3.14)(2)(6)\\2^2=4\\4*3.14=12.56\\12.56*2=25.12\\\\2*3.14=6.28\\6.28*2=12.56\\12.56*6=75.36\\\\75.36+25.12=100.48\\SA=100.48cm^2[/tex]
WHAT IS THE GOAL FOR THE TOPIC OF FINDING THE CENTER AND THE RADIUS OF A CIRCLE GIVEN THE EQUATION?
The goal is to find the radius of a circle which also helps to get the diameter. Finding the center helps to measure and know the circumference.
What is the tenth term of the sequence described by the rule?
A(n)=−9+5(n−1)
Answer:
46
Step-by-step explanation:
Replace n by 10 in the rule a(n) = -9 + 5(n - 1):
a(10) = -9 + 5(9) = 45 - 9 = 46
The pie chart shows the age distribution in a village of 120 people.
b)
a) How many of the villagers are over 60?
25 to 60
Over 60
b) What percentage of the villagers are
under 25?
Under 25
Answer:
5%
Step-by-step explanation:
What is the value of ? x/10 = 2 O A. 5 O B. 8 O C. 12 OD. 20
Answer:
x = 20
Step-by-step explanation:
x/10 = 2
Multiply each side by 10
x/10 * 10 = 2*10
x = 20
Find two consecutive odd images interfere whose sum is 36
Which of the following equation could be used to solve the problem
Answer:
Step-by-step explanation:
The integers are: x, x+2
Them, x + x+ 2 = 36
2x +2 = 36
Which of the following three-dimensional figures could have a net which consists of two squares and four rectangles?
cube
rectangular prism
square pyramid
triangular prism
Please help!!!!! Will give brainleist
Answer:
Increasing: [tex](\infty, 0)\cup (1,\infty)[/tex]
Decreasing: [tex](0, 1)[/tex]
Concave Up: [tex](0, \infty)[/tex]
Concave Down: [tex](-\infty, 1)[/tex]
Step-by-step explanation:
Increasing intervals are intervals where the function is approaching positive infinity (upwards). Decreasing intervals are intervals where the function is approaching negative infinity (downwards). Concavity refers to intervals that resemble a parabola either opening upwards (Concave Up) or opening downwards (Concave Down).
What is the difference between adjacent and supplementary angles? Why is it important to consider angles when making a
tessellation
Answer:
Step-by-step explanation:
supplementary angles: either of two angles whose sum is 180°.
adjacent angles: Adjacent angles are two angles that have a common vertex and a common side but do not overlap.
1
Which of the following can be represented by a negative integer?
O
A. 6 degrees below zero
B. O degrees
C. $50 deposit into a savings account
D. 200 feet above sea level
2
Answer:
A
Step-by-step explanation:
A is the only one that makes sense and if you write it out is is -6 degrees. A negative integer is a normal whole number but is negative. Hope this Helps!
please help me solve this
Answer:
20.5
Step-by-step explanation:
By the Triangle Midsegment Theorem, the midsegment connecting the midpoints of two sides of a triangle is parallel to the third side of the triangle, and the length of this midsegment is half the length of the third side. Therefore, (1/2)FH ≡ IH, (1/2)HG ≡ HJ. Knowing that IJ = 8 gives you the presidence to solve for the perimeter.
PLEASE HELP 7TH GRADE MATH
BRAINLIEST-SHOWS WORK
PLEASE HELP
ANSWE 1 OR MORE AN WILL MARK BRAINLIEST 1 OR MORE
Answer:
[tex]2\pi \times r[/tex]
1. 2×3.14×80
=502.4 m
4. 90 pound on Earth weighs 34 pounds on Mars.
If it weighs 135 pounds on earth, it will weigh x pounds on Mars
=90×=135×34
=90x=4590
=x=4590÷90
x=51 pounds
So therefore it weighs 51 pounds on Mars.
Step-by-step explanation:
in question 4 you have to cross multiply
Erin has two cats. The larger cat weighs 2.6 pounds more than the smaller cat. The combined weight of the two cats is 19.6 pounds. What is the weight, in pounds of the smaller cat?
Answer:
7.2
Step-by-step explanation:
just divide the total weight by 2 and add 2.6. after adding 2.6 you subtract that weight from the total.
help me im so lostttttttttttttttttttttttttttttttttttttttttttyytytytytyy
Answer:
First of all what are those white figure?
Answer: 36 cubic feet
Step-by-step explanation:
in new england 47% of the houses have a garage and 36% of the houses have a garage and a backyard what is the probability that a house has a backyard given that has a garage probs and stats
Answer:
The probability that a house has a backyard given that has a garage is 76.60%.
Step-by-step explanation:
Given that in New England 47% of the houses have a garage and 36% of the houses have a garage and a backyard, to determine what is the probability that a house has a backyard given that has a garage the following crossed multiplication must be performed:
47 = 100
36 = X
(36 x 100) / 47 = X
3,600 / 47 = X
76.5957 = X
Therefore, the probability that a house has a backyard given that has a garage is 76.60%.
Can you help me write the equation of the line
Answer:
y = -6x-8
Step-by-step explanation:
2 x – 5y = –47
6 x – 5y = –71
Answer: x = - 6
y = 7
Step-by-step explanation:
Let 2x -5y = -47 be eq. 1
And 6x -5y = -71 be eq. 2
By substrate of 1 - 2:
2x-5y-6x+5y = -47+71
so -4x=24 and x= -6
Substitute x in any eq.
2(-6) - 5y = -47
-5y = -47 +12
-5y = -35 so y= 7