Answer:
4
Step-by-step explanation:
Compute the sample variance for the following scores: 25, 36, 41, 28, 29, 32, 39, 37, 34, 34, 37, 35, 30, 36, 31, 31
Answer:
Step-by-step explanation:
From the given information:
The mean [tex]\hat x = \dfrac{\sum x}{n}[/tex]
[tex]\hat x = \dfrac{25+36+41+28+29+32+29+37+34+34+37+35+30+36+31+31}{16}[/tex]
[tex]\overline{x} = \dfrac{535}{16}[/tex]
[tex]\overline{x} = 33.44[/tex]
The sample variance is as follows:
[tex]S^2 = \dfrac{\sum dx^2 - ( \dfrac{\sum dx)^2}{n} )}{n-1}[/tex]
[tex]S^2 = \dfrac{279- ( \dfrac{7}{15} )^2}{15}[/tex]
[tex]S^2 = 18.585[/tex]
Type the missing numbers
Answer:
-8, -4, 2
Step-by-step explanation:
-8, -4, 2
Answer:
-8, -6, -4, -2, 0, 2, 4
Step-by-step explanation:
The numbers are increasing/decreasing by 2.
(3x-3) (2x-1)
ill pay u ill bid if u want
Answer: 6x^2 - 9x + 3
Step-by-step explanation:
first, i multiplied the parentheses.
3x x 2x - 3x - 3 x 2x - 3 x (-1)
then, i calculated/multiplied it.
6x^2 - 3x - 6x + 3
finally, i collected the like terms.
6x^2 - 9x + 3
Answer:
6x^2-9x+3
More solutions:
factored: 3(x-1)(2x-1)
sum-product pattern: 3(2x^2+2x+x+1)
common factor: 3(2x^2+3x+1)
70% of US teenagers consume at least one energy drink per week. Some US
teenagers were randomly selected for a survey and asked if they consume at least
one energy drink per week. What is the probability that the first teenager to respond
"yes" is within the first 3 to respond?
PLS HELP TYSM
You are building a door frame. The two sides are parallel and the top and bottom are also parallel. Which additional statement does not give enough information to conclude that the door frame forms a rectangle?
Answer:
"The diagonals of the door frame are congruent."
Step-by-step explanation:
The statement that would not give enough information would be "The diagonals of the door frame are congruent." This is because a rectangle does have congruent diagonals but a rhomboid also has congruent angles and has opposing parallel sides. Therefore, this statement does not give sufficient information to prove that the object in question is a rectangle. We would need more information such as the length of the sides or the degree of the angles.
Find the Prime Factorization of 120.
A. 2x 32 x 5
B. 23 x 3 x 5
C. 4x6x5
D. 8 x3 x 5
Answer:
option (c)
Step-by-step explanation:
4*6*5
please mark as brainliest
-1.2(-3 - w) + 2w
show work plsss!
Answer:
3.2w+3.6
Step-by-step explanation:
(−1.2)(−3)+(−1.2)(−w)+2w
=3.6+1.2w+2w
Combine Like Terms:
=3.6+1.2w+2w
=(1.2w+2w)+(3.6)
=3.2w+3.6
HOPE IT HELPED GOOD LUCK
The diagram below show the dimensions of a container of sand that is shaped like a rectangular prism . The container is filled up to 1/2 foot from the its top . What is the volume of the sand in the container?
Answer:
Its B
Step-by-step explanation:
Answer:
the anwser is b
Step-by-step explanation:
You created a blog and after 2 weeks you get your first subscriber. The number of subscribers grows quickly, quadrupling each week afterwards.
Excited about your blog's popularity you wonder, how many subscribers will the blog have 12 weeks after you create it?
Answer:
1 x 4 x 12 = 48
Step-by-step explanation:
48 subs
The number of subscribers at 12 weeks is required.
Number of subscribers at 12 weeks would be 1048576.
a = Initial subscriber count at 2 weeks = 1
Week at which number of subscribers is required is 12.
x = Duration between the weeks = [tex]12-2=10[/tex]
r = Rate of increase = 4
The required formula is
[tex]f(x)=ar^x\\\Rightarrow f(10)=1(4)^{10}\\\Rightarrow f(10)=1048576[/tex]
Number of subscribers at 12 weeks would be 1048576.
Learn more:
https://brainly.com/question/16954106?referrer=searchResults
The expression 42+57 shows how much money Nate spent at a store. Which expression also shows how much
money Nate spent?
Answer:
The first one
Step-by-step explanation:
42+57=99
The only answer that is equal to 99 is the first one. 3(14+19) = 3(33) = 99
Answer:
66+33
Step-by-step explanation:
42+57= 99
__________
My expression
66+33= 99
Hopefully that helps you out.
Find the size of angle XYZ give your answer to 1 decimal place plssss hellllpppp
Answer:
hey mate here's your answer
Step-by-step explanation:
(hypothenuse)²=(base)²+(perpendicular)²
15²=6²+P²
322=36+p²
322-36=p²
286=p²
√286=p
16.91=p
hope it helps you
plz mark me as brainiest
what is 6/10 equivalent to
Answer:
3/5
Step-by-step explanation:
If you cut 6 in half you get 3. If you cut 10 in half you get 5. Equaling 3/5.
I hope this helps!
Answer:
3/5
or 0.6
Step-by-step explanation:
depends on what you mean equals let me know if this answers your question
Sonya walks on a treadmill at a constant rate of 3.5 miles per hour. A graph showing the relationship between the time she walks and the distance she travels passes through the origin and the point (1, 3.5) Name three other points that lie on the graph of the line.
Answer:
7, 10.5, 14
because you have to keep adding 3.5 like from 3.5 you add another 3.5 to get the 7.
A store has 7 red shirts, 15 black shirts, 13 white shirts, and 5 green shirts. Select the portion of the shirts that are black.
Answer:
g
Step-by-step explanation:
Factor out the GCF of 18x3y4+24x2y5
(A) 6x3y5(7)
(B) 6(3x3y4+4x2y5)
(C) 6x2y4(3x+4y)
(D) 42x5y9
Answer:
c
Step-by-step explanation:
18x³y⁴ = 2 * 3 * 3 * x³ * y⁴
24x²y⁵ = 2 * 2 * 2 * 3 * x² * y⁵
GCF = 2 * 3 * x² * y⁴ = 6x²y⁴
18x³y⁴ + 24x²y⁵ = 6x²y⁴(3x + 4y)
Find the zeroes of the function g(x).
g(x) = (x - 8)(x + 7)
Write your answer as a list of values separated by commas,
Answer:
-15
Step-by-step explanation:
=(x - 8)(x + 7)
=x2-15x-56
= (0)2 - 15(0) -15
= -15
The probability of hitting a target is 1/8. What is the probability of hitting the target exactly twice in five tries
Answer:
[tex]P(X=2) = 0.1047[/tex]
Step-by-step explanation:
Represent the probability of hitting the target with H.
So:
[tex]H = \frac{1}{8}[/tex]
Represent the probability of not hitting the target with T.
So:
[tex]T = 1 - H[/tex]
[tex]T =1 - \frac{1}{8}[/tex]
[tex]T =\frac{7}{8}[/tex]
Required
Probability of exactly 2 hits in 5 tries
This probability is a binomial probability and will be calculated using:
[tex]P(X=x) = ^nC_x H^xT^{n-x}[/tex]
In this case:
[tex]x = 2[/tex] i.e 2 hits
[tex]n = 5[/tex] i.e. 5 attempts
So, we have:
[tex]P(X=2) = ^5C_2 H^2T^{5-2}[/tex]
[tex]P(X=2) = ^5C_2 H^2T^3[/tex]
Apply combination formula:
[tex]P(X=2) = \frac{5!}{(5-2)!2!} H^2T^3[/tex]
[tex]P(X=2) = \frac{5!}{3!2!} H^2T^3[/tex]
[tex]P(X=2) = \frac{5*4*3!}{3!2*1} H^2T^3[/tex]
[tex]P(X=2) = \frac{5*4}{2} H^2T^3[/tex]
[tex]P(X=2) = 10* H^2T^3[/tex]
Substitute values for H and T
[tex]P(X=2) = 10* (\frac{1}{8})^2(\frac{7}{8})^3[/tex]
[tex]P(X=2) = 10* \frac{1}{64}*\frac{343}{512}[/tex]
[tex]P(X=2) = \frac{3430}{32768}[/tex]
[tex]P(X=2) = 0.1047[/tex]
Hence, the probability of 2 hits in 5 tries is 0.1047
Please help me i don't understand
Answer:
-49 degrees Fahrenheit sorrry don’t have time gtg
Step-by-step explanation:
An infant weighs 22kg . How many pounds does the child weigh? ANSWER IS NOT 48.5LBS .
Answer:
Hey, do you know how to screenshot images? There is also a website for Brainly if needed
Step-by-step explanation:
Which two points have an undefined slope?
Answer:is there a pic
Step-by-step explanation:
More info?
In his Fourteen Points, why did President Wilson include resolutions specifically about European
territories?
A Wilson insisted that Germany should take public responsibility for starting the war that had
destroyed many territories.
B The Treaty of Versailles did not include any detailed restrictions on territorial boundaries
C Territorial disputes among European nations were a major reason the war began in the first
place
D There was a strong international push for freedom of the seas and the reduction of armaments
Answer:
The correct answer is C. President Wilson included resolutions specifically about European territories in his Fourteen Points because territorial disputes among European nations were a major reason the war began in the first place.
Step-by-step explanation:
The Fourteen Points were the pacifist plan devised by President Woodrow Wilson at the end of World War I, with the aim of avoiding tensions between the former European combatants of the conflict and thus achieve a lasting peace between nations, framed in the League of Nations as supranational entity. Basically, the Fourteen Points sought to avoid the imposition of excessive sanctions on the defeated, as well as the obtaining of great benefits by the winners, so as not to break the territorial status quo prior to the war and thus avoid generating tensions in the future.
Answer:
C.) Territorial disputes among European nations were a major reason the war began in the first place.
Step-by-step explanation:
This is correct if it is for Connexus :)
Elizabeth is building a wooden deck. She has a plank of wood that is 5.2 meters long. She needs to cut the plank into 1.3 meter long pieces.
5.2 meters
How many 1.3 meter pieces can she cut?
AO 0.4 piece
B
4 pieces
C. 6.5 pieces
D.
40 pieces
Answer: 4 pieces
Step-by-step explanation: you just have to divided 5.2 to 1.3 and you will get 4 pieces :).
⚠️ANSWER NEEDED FAST⚠️
What is the constant of proportionality in this situation, in gallons per hour?
I’ll give brainpower to who answers first with eighth answer.
Answer:
y = 15x
Step-by-step explanation:
If take the values of x and y you can see the equation
y=15x
Help plz:)))I’ll mark u Brainliest
A store starts the day with 45 packages of cheese slices. Each package contains the same number of cheese slices. By the end of the day, there are only 7 packages of cheese slices left.
Answer
Step-by-step explanation:
What is the value of y when x = 5? y=21x−7 Enter your answer in the box.
y= ___
Answer:
y = 98
Step-by-step explanation:
y=21x−7
Let x=5
y = 21*5 -7
y =105-7
y =98
A group is diving at an depth of 20 feet. If they rise 20 feet, their new elevation will.
A. end up at exactly 0 feet of elevation.
B. result in a positive elevation.
C. result in a negative elevation.
D. be less than it was before.
Answer:
A. end up at exactly 0 feet of elevation.
Step-by-step explanation:
This is because, at a depth of 20 feet, their position is -20 feet below the water surface. If they rise by 20 feet, we add 20 feet to their current position to reach their new position.
So, -20 feet + 20 feet = 0 feet.
So, their new elevation will end up at exactly 0 feet of elevation.
(m - 5) = 4 where m=17
Answer:
If m = 17 then the equation would be 12 = 4 which is not true
So this whole equation is false
Step-by-step explanation:
Solve this equation: 8(3x – 6) = 6(4x + 8)
Answer:
안녕하세요 멍청한 새끼들. 시험하고 빨리 답이 필요해 .. 네 개년들 고마워
can someone help please!
Answer:
1. B. <1 and <2
2. C. 37°
3. B. 40°
Step-by-step explanation:
1. Complementary angles add up to 90°.
From the diagram given, <1 and <2 are complementary because they sum up to 90°.
The answer is B. <1 and <2
2. Given that,
m<1 = 37°, m<4 = 37° also.
This is because m<1 and m<4 are Vertical angles. Vertical angles pair are equal.
The answer is: C. 37°
3. If m<1 = 50°, then:
m<5 = 90 - m<4
m<1 = m<4 = 50° (vertical angles)
m<5 = 90 - 50 (substitution)
m<5 = 40°
Answer is B. 40°