The standard deviation of x can be 0.725.
The table describing the probability distribution of x is as follows
x P(X=x)
0 10/120
1 48/120
2 42/120
3 20/120
To find the probabilities, we can use the hypergeometric distribution formula:
P(X=x) = (C(4,x) * C(6,3-x)) / C(10,3)
where C(n,r) represents the number of combinations of n things taken r at a time.
The mean of x can be found using the formula:
E(X) = Σ(x * P(X=x))
= 0*(10/120) + 1*(48/120) + 2*(42/120) + 3*(20/120)
= 1.4
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Jan wants a bunch of balloons for her birthday party. There were 10 red, 12 blue, 13 green and 15 yellow balloons. What percentage is the blue balloons ?
Answer:
Should be 24%
Step-by-step explanation:
12/50= .24
ILL GIVE BRAINLIEST FOR FIRST ANSWER HELP
What is the volume of this rectangular prism?
Answer:
The answer is 56 cm^3
Step-by-step explanation:
2 = height
7 = length
4 = width
Formula: LxWxH
2 x 7 x 4 = 56
Laila and Young each made a model volcano. Laila's volcano weighs 3 times as much as Young's. Laila's volcano weighs 9 pounds.
How much does Young's volcano weigh?
A3 pounds
B. 6 pounds
c 12 pounds
D. 18 pounds
E 27 pounds
Answer:
3
Step-by-step explanation:
I hate mathhhhhhhhhhh
Answer:
dont we all
Step-by-step explanation:
Answer:
r is a variable, 3/5 is a constant, 1 and 1/4 is a coefficient
h/6-1=-3 h=?
please help
The answer is
[tex]h = - 12[/tex]
it will look like that,.
[tex] \frac{ - 12}{6} - 1 = - 3[/tex]
Answer:
h= -12
Step-by-step explanation:
h/6+1= -3
h/6= -2
h= -12
GF GF
is justified as a step in a proof using the Reflexive Property of Congruence
Choose...
Alternate Interior Angles Theorem
Hypotenuse-Leg Theorem
Reflexive Property of Congruence
ASA Triangle Congruence Theorem
Answer:
Reflexive property of congruence.
Step-by-step explanation:
Answer:
reflective property
Step-by-step explanation:
jfjdjdjdjdjfjfjfjfuud
Are the ratios 2:3 and 3:2 equivalent?
Yes
No
Answer:
no
Step-by-step explanation:
Answer:
no , they not equal they are different
Help needed ASAP, please!
Answer:
percent 60%
fraction 60/100
ratio 60:40
(dk if it is)
Answer: 60% fraction: 6/10 ratio: 6:10
Step-by-step explanation:
can someone solve this please , ill give Brainly to whoever is first :)
Answer:
630 in^2
Step-by-step explanation:
21 x 15 divided by 2 = 157.5
157.5 x 4 = 630
Answer:
Step-by-step explanation:
I person who answers this is right
Can anyone help please!!!
Answer:
6x8x16x10
Step-by-step explanation:
Evaluate the expression for p = 9!
Answer:
362880
Step-by-step explanation:
find the value of X
2.
Which equation best describes the graph??
y = 3x + 1
y = -3x + 1
y = -3x - 1
y = 3x - 1
Answer:
y = 3x + 1
Step-by-step explanation:
Determine if it’s relationship is a function.
Answer:
It is not a function
because: 4: 25 went to 4: 35
an input can not have two or more outputs
Step-by-step explanation:
Write two expressions which are equivalent to 24x + 8.
[tex]8(3x + 1)[/tex]
Factor out 8 from the expression
What is the value of Fraction 1 over 2 x3 + 3.4y when x = 3 and y = 4? (4 points)15.85 18.1 27.1 31.6
Debra made $228 for 12 hours of work.
At the same rate, how many hours would she have to work to make $323?
Answer:
17 hours
Step-by-step explanation:
Set up a proportion: [tex]\frac{12}{228} = \frac{x}{323}[/tex] Cross multiply, then divide: 12 × 323 = 3876, 3876 ÷ 228 = 17So, she would have to work 17 hours to make $323.I hope this helps!
solve this system of equations by using the elimination method.
2x-3y=25
5x+3y=10
Elimination method is my favorite way to solve 2 equations like this written in standard form! First I'm going to rewrite the equations and mark numbers to make this explanation more clear.
2x-3y=251️⃣
5x+3y=102️⃣
Looking at these 2 equations we can see that there is a +3 and a -3. This could be eliminated by adding the 2 equations together! *Remember what is on the left side adds with the left side, and what's on the right side adds with the right side. Therefore we can do:
1️⃣+2️⃣
2x-3y+5x+3y=25+10
7x=35
x=5
Then we can substitute the value of x back into either of the 2 equations.
2*5-3y=25
10-3y=25
3y=-15
y=-5
Then write the 2 answers together.
{x=5
{
{y=-5
Now we can check our answers.
2*5-3*-5=10- -15= 10+15=25 Correct
5*5+3*-5= 25+ -15= 10 Correct
From this we can see that x=5 y= - 5 are the correct answers!
How do you write 6x (to the 3rd power) -60x (to the 2nd power) +144x in factored form?
Answer:
6x(x-4)(x-6)Step-by-step explanation:
I assume your expression is:
6x^3-60x^2+144x.
I'll use that information.
Factor 6x^3−60x^2+144x
6x^3−60x^2+144x
=6x(x−4)(x−6)
YEAR 9 MATHEMATUCS ALGEBRA
Answer:
Your answer is :
B. 6a^2 + 3ab
Markn my answer as brainlist . Follow me for more answer.
Step-by-step explanation:
Which expression is equivalent to 1/2b -15?
A. -1/2 (b + 30)
B. -1/2 (b - 30)
C. 1/2 (b - 30)
D. 1/2 (b + 30)
The expression 1/2b -15 is equivalent to, 1/2(b-30), So option C is correct
What are expressions?An expression is a sentence with at least two numbers or variables having mathematical operation. Math operations can be addition, subtraction, multiplication, division.
For example, 2x+3
Given that,
An expression, 1/2b -15
The expressions are equivalent = ?
So now, we can take 1/2 common from the expressions
⇒ 1/2b -15(2/2)
⇒ 1/2(b -15×2)
⇒ 1/2(b - 30)
Hence, the equivalent expression is, 1/2(b - 30)
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A blueprint for a new triangular playground shows that the sides
measure 480 ft, 140 ft, and 500 ft. Is the playground in the shape of
a right triangle? Explain.
Answer:
no
Step-by-step explanation:
because it is not equal numbers
1. 1 3/4 + 1/2 + 1/4 + 1/2
2. 5 5/8 - 2 6/7 - 2/7 -5/8
3. 9 5/6 + 1 1/4 + ___ = 14
Please answer these and help me!!!
yo mama is nice stay safe
Answer:
1. 3
2. 1 6/7
3.8 1/6
Step-by-step explanation:
hope this is correct:)
What is the slope between:
(2,5) (4, 13)
Answer:
m = 4
you can find the answer for this on m a t h w a y (without the spaces)
I hope this helps!
Answer:
4
Step-by-step explanation:
slope = y2-y1 / x2-x1
13-5= 8
4-2=2
8/2= 4
A seventh-grade student wants to read at least 300 pages of a novel this week. He has already read 55 pages. An inequality that represents this situation is 7x+55≥300.
Solve this inequality for x, the number of pager per day.
Identify a number of pages that the student could read per day in order to have at least 300 pages of the novel read in a week.
Explain how you know that your answer is appropriate.
Enter your answer and your work or explanation in the space provided.
Answer:
x=35
Step-by-step explanation:
7x+55≥300
-55 -55
--------------------
7x≥245
now divide both sides by 7
x=35
17x>−17.................
Answer:
Divide each term in 17x > −17 by 17.
17x/17 > −17/17
Cancel the common factor of 17.
x > −17/17
Divide −17 by 17.
x > −1
The result can be shown in multiple forms.
Inequality Form:
x > −1
Interval Notation:
( −1 , ∞ )
Step-by-step explanation:
Use the Distributive Property to find the product.
1 1/5x25=?
The product is .
Answer:
55
Step-by-step explanation:
you make 25 into its perfect square form and multiply
11÷5 x 5 x 5
the product of 9 and c
Answer:
The answer is 9c or 9 × c..
Will Mark brainliest if answer both correctly / What is X= ? / conditional statement
The measures of the angles of a triangle are shown in the figure below.Solve for X