Answer:
-28787890
Step-by-step explanation:
Suppose that two cards are randomly selected from a standard 52-card deck.
(a) What is the probability that the first card is a spade and the second card is a spade if the sampling is done without replacement?
(b) What is the probability that the first card is a spade and the second card is a spade if the sampling is done with replacement?
Answer:
A) 4 of the 52 cards are queens on the first draw; 3 of the remaining 51 cards are queens on the second draw: (4/52)*(3/51)
B) 4 of the 52 cards are queens on each draw: (4/52)*(4/52)
Step-by-step explanation:
correct me if. wrong
What does using the degrees of freedom in a sample correct for? possible bias between the alternative and null hypotheses possible bias between the sample and the population possible bias between the standard deviation and variance possible bias between the standard deviation and the mean
In Statistics and mathematics, the degrees of freedom in a sample are used to correct: A. possible bias between the alternative and null hypotheses.
What is a null hypothesis?A null hypothesis ([tex]H_0[/tex]) can be defined as the opposite of an alternate hypothesis ([tex]H_a[/tex]), and it asserts that two (2) possibilities are the same.
In In Statistics and mathematics, the test statistics of a given sample is calculated with this formula:
[tex]Z=\frac{x\;-\;u}{\frac{\delta}{\sqrt{n} } }[/tex]
Where:
x is the sample mean.u is the mean.is the standard deviation.n is the sample size.Also, the degrees of freedom in a sample are used to correct a possible bias that exists between the alternative and null hypotheses.
Read more on null hypothesis here: https://brainly.com/question/14913351
Natalie has 112 boxes she left 105 five boxes and she found 20 boxes how much dose she have?
Answer:
27 boxes.
Step-by-step explanation:
This situation can be represented by the equation:
(112 - 105) + 20 = ?
First we subtract 105 from 112:
112 - 105= 7
Now add 20.
7 + 20 = 27
Natalie has 27 boxes now.
NOW I NEED HELP NOW PLSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS
Mya is redecorating her bedroom. The room is in the shape of right rectangular prism.
The dimensions of the room are: 12 feet in length by 14 feet in width by 8 feet in height.
She plans to cover the floor with tile. The cost of the tile is $4 per square foot.
She plans to cover the walls and the ceiling with paint. Each container of paint costs $16 and can cover 146 ft².
What is the total cost of the tile flooring and paint needed for this room?
Drag and drop the responses to correctly complete these sentences.
The total square feet of flooring needed is ____ and the flooring cost will be ____
The total square feet that will need to be painted is ____ and the paint cost will be ____
The total cost of the tile flooring and paint needed for this room is ____
Answer: took the test and the answers are at the bottom. cheers mate :)
Step-by-step explanation:
The length of a rectangular garden is 4 more than three times the width. If the perimeter of the garden 104 feet, what are the dimensions of the garden.
Write your system of equations:
Answer the question being asked:
Answer:
12 ft by 40 ft
Step-by-step explanation:
Let L represent the length and W the width. Then L = 3W + 4.
The perimeter formula is P = 2L + 2W or P = 2(L + W).
Substituting 104 ft for P, we get 104 ft = 2(L + W), which reduces to
52 ft = L + W, or 52 ft = 3W + 4 + W.
Therefore, 52 ft = 4W + 4.
Solving this for W, we get 48 ft = 4W, or W = 12 ft.
Then, because L = 3W + 4, L = 3(12 ft) + 4 = 40 ft = L
The dimensions of the garden are 12 ft by 40 ft.
please help please help please
light and heat
Step-by-step explanation:
all stars in general produce light and heat
If x = 12 cm, what is the volume of the prism?
cm3
Answer:
4320
Step-by-step explanation:
PLEASE MARK ME AS BRAINLIEST AND HAVE A NICE DAY :)
Which equation does not represent a quadratic function?
Y = (x + 3)^2
y = 3x^2
y = 6x^2 - 1
y = x + 5
[tex]\text{A quadratic function is in the form of } ~ f(x)=ax^2 +bx+c.\\\\\\y=x+5 ~ \text{is linear so it is not in a form of quadratic function.}[/tex]
Can u help me? thank you
Answer:
x =10
Step-by-step explanation:
30:12 is a 2.5 ratio so the smaller one is 2.5x smaller so 25/x = 2.5 or 25/2.5 = x = 10
"The sum of a number and 20 is multiplied by 6 and the result is 26."
[tex]\qquad\qquad\huge\underline{{\sf Answer}}♨[/tex]
Consider the number as x
let's solve ~
[tex]\qquad \sf \dashrightarrow \:6(x + 20) = 26[/tex]
[tex]\qquad \sf \dashrightarrow \:6x + 120 = 26[/tex]
[tex]\qquad \sf \dashrightarrow \:6x = - 120 + 26[/tex]
[tex]\qquad \sf \dashrightarrow \:6x = -94[/tex]
[tex]\qquad \sf \dashrightarrow \:x = - 94 \div 6[/tex]
[tex]\qquad \sf \dashrightarrow \:x = \dfrac{ - 47}{3} [/tex]
・ ．━━━━━━━†━━━━━━━━━．・
Answer:
[tex](x + 20) 6 = 26[/tex]
[tex]6x + 120 = 26[/tex]
[tex]6x = 26 - 120[/tex]
[tex]6x = - 94[/tex]
[tex] \displaystyle \: x = \frac{ - 94}{6} [/tex]
[tex] \displaystyle{x = \frac{ - 47}{3} }[/tex]
[tex]\red {\rule{35pt}{2pt}} \green{ \rule{35pt}{2pt}}\orange{ \rule{35pt}{2pt}}\pink{ \rule{35pt}{2pt}}\blue{ \rule{35pt}{2pt}}\purple{ \rule{35pt}{2pt}}\red{ \rule{35pt}{2pt}}[/tex]
[tex] \bold{ \displaystyle{x = - \frac{47}{3} }}[/tex]
If we randomly select 2 students at a time and record their drinking habits, what is the probability that both students drink
Answer:
1 liter
Step-by-step explanation:
x2by 100%8hdofux27675 868*uhf
please answer this question
[tex]\bold{\huge{\underline{ Solution }}}[/tex]
Before answering the given question, you should know the difference between polygon and regular polygon.
Polygon :- It is closed figure constitute of straight line having different measurements and also having varies angles. Regular polygon :- It is also a closed figure constitute of straight lines which having equal measuresment and all the angles of the given polygon are equal .There are different types of polygon based on the sides :-
A polygon having 3 sided called triangle ,having 4 sides called quadrilateral ,having 5 sides pentagon and so on. Let's Begin :-I have thought to make a 4 side polygon that is quadrilateral.
Steps of construction :-
Step - 1 :- Draw a 5 cm line AB horizontally Step - 2 :- Then , From a point B, Draw a Vertical line of 5 cm and named it BC Step - 3 :- Then, From a point C, Draw a horizontal line of 5 cm and named it CD Step - 4 :- Now, join the line AD Step - 5 :- Measure all the angles form by the 4 sides of the quadrilateral.Result :- All the angles are equal that is 90° each.
Conclusion :- The above figure is square as it is having equal sides and angles.
Now, we have to find the sum of the angles of the polygon :-Here,
All angles are equal in measure 90°Therefore,
The sum of the angles of the given polygon
[tex]\sf{ = 90{\degree} + 90{\degree} + 90{\degree} + 90{\degree} }[/tex]
[tex]\sf{ = 180{\degree} + 90{\degree} + 90{\degree} }[/tex]
[tex]\sf{ = 270{\degree} + 90{\degree} }[/tex]
[tex]\sf{ = 360{\degree} }[/tex]
Hence, The sum of the angles of the above polygon is 360° .
If y varies inversely as x, and y=16 when x=4, find y when x=10
Answer:
40
Step-by-step explanation:
you have to multiply x by 4 to get y when x=4 and y=16. so if x=10, then you have to multiply what x is (10) by 4 because there is a common ratio.
hope this helps!! please give brainliest!!!!!!
If 3 sweaters cost $25.95, how much would 6 sweaters cost?
Answer:
If 3 sweaters cost $25.95, then 6 sweaters must cost $95.69.
Step-by-step explanation:
Im sorry if this answer isnt correct.
High-efficiency particulate air (HEPA) filters are designed to remove which sized particles from the environment? 0.1 microns or smaller a) b) 0.3 microns or larger O c) 0.1 microns or larger d) 0.3 microns or smaller
Answer:
(b) 0.3 microns or larger
Step-by-step explanation:
A particle of size 0.3 microns is judged to be the most penetrating particle size. So, a rating for the filtering of those particles will be a worst-case rating. For particles of any other size, the filter will perform better than for 0.3 micron particles. HEPA filters are rated based on their performance with particles ...
0.3 microns or larger
Six times a number increased by 4 is no less than 50.
Which inequality represents this statement?
1: 6x+4≤50
2: 6x+4<50
3: 6x+4≥50
4: 6x+4>50
Answer:
3.
Step-by-step explanation:
For this question, you just have to pick apart what "no less than" means. If I say I can have no less than 2 apples to eat, that's me saying that that's the minimum number I can have, but 2 apples is also still fine. In this case, that minimum is 50 but we can still have over 50. So, 6x+4 can be greater than or equal to 50.
Roberto's science grade is calculated using a weighted average. Quizzes are worth 25%, homework is worth 10%, unit tests are worth 30%, and labs are worth 35%.
Roberto earned an average of 94% on his quizzes, 99% on his homework, 92% on his unit tests, and 94% on his labs.
What is Roberto's final science grade?
93.3%
93.9%
94.8%
95.3%
Answer:
Final grade: 93.9%
Step-by-step explanation:
The weights are as follows: 0.25, 0.10, 0.30 and 0.35. Note that these add up to the whole, that is, to 1.00.
Then the final grade is:
0.25(94) + 0.10(99) + 0.30(92) + 0.35(94) = 93.9
What is the equation of a hyperbola with a = 1 and c = 9? Assume that the transverse axis is horizontal.
Answer:
Step-by-step explanation:
The general formula for a horizontal hyperbola :
[tex]\frac{x^{2} }{a^{2} } -\frac{y^{2} }{b^{2} } =1[/tex]
Given: a = 1 we know a² = 1 ,and that c = 9 so we know c² = 9² = 81
We also know that the relation between a, b, c for a hyperbola is c²= a²+b²
c²= a²+b², substitute what we know
81 = 1 +b², subtract 1 from both sides of the equation
80 = b²
The equation of our hyperbola is:
[tex]\frac{x^{2} }{1 } -\frac{y^{2} }{80 } =1[/tex] or [tex]x^{2} -\frac{y^{2} }{80} =1[/tex]
Darron wants to send a package to his mother for her birthday. At Box-r-us, they have boxes that come in three different lengths, four different widths and five different heights. At ship to go they have have boxes that comes in six different lengths two different widths and seven different heights. The number of boxes that box r us has is ——— ship to go
Answer:
less than
Step-by-step explanation:
At Box-r-us, they have 3*4*5=60 different boxes.
At Ship to go they have 6*2*7=84 different boxes
Therefore the number of boxes that box r us has is less than the number of boxes that Ship to go has.
Shirley has 5 novels and 5 comic books in her bag.
Three of her books are in Japanese, 2 of which are
comic books. The rest of her books are in English.
If a book is chosen at random from her bag, find
the probability of choosing
(((i) a book in Japanese))))-question
Answer:
3/10
Step-by-step explanation=
Total amount of books in her bag = 10
Total amount of Japanese books in bag = 3
So you have a 3 out of 10 chance of choosing a Japanese book
Also, this problem was trying to confuse you with all the extra wording
Here is the important information in bold
Shirley has 5 novels and 5 comic books in her bag.
Three of her books are in Japanese, 2 of which are
comic books. The rest of her books are in English.
If a book is chosen at random from her bag, find
the probability of choosing
(((i) a book in Japanese))))-question
i really need help with this question i received a wrong answer i don't have as many points to spend this time if you want 50 points you can go to my previous question to answer there if you want
Answer:
Step-by-step explanation:
let the eq. be
y=a(x-2)(x-4)+b
x=0,y=-2
-2=a(0-2)(0-4)+b
-2=8a+b
when x=6,y=-2
-2=a(6-2)(6-4)+b
-2=8a+b
when x=8,y=-6
-6=a(8-2)(8-4)+b
-6=24a+b
16a=-4
a=-1/4
-2=-2+b
b=0
y=-1/4(x-2)(x-4)
y=-1/4(x^2-6x+8)
y=-1/4x^2+3/2x -2
when x=1
y=-1/4(1-2)(1-4)
y=-3/4
What is the factorization of the trinomial below?
-x^2 - 2x + 48
A. -1(x - 8)(x + 6)
B. -1(x + 8)(x - 6)
C. (x + 6)(x - 8)
D. (x - 6)(x + 8)
Answer:
The answer to this question is A
Can someone solve this question to me.i will mark brainliest. :)
Answer:
Parent Function: [tex]y=\sqrt{x}[/tex]Horizontal shift: right 3 unitsVertical shift: up 3 unitsReflection about the x-axis: noneVertical strech: strechedStep-by-step explanation:
assume that [tex]y=\sqrt{x}[/tex] is [tex]f(x)=\sqrt{x}[/tex] and [tex]y=\sqrt{-2x+6}+3[/tex] is
[tex]g(x)=\sqrt{-2x+6}+3\\ f(x)=\sqrt{x} \\g(x)=\sqrt{-2x+6}+3[/tex]
The transformation from the first equation to the second equation can be found by finding a,h and k for each equation.
[tex]y=a\sqrt{x-h}+k[/tex]
factor a 1 out of the absolute value to make the coefficient of x equal to 1
[tex]y=\sqrt{x}[/tex]
factor a 2 out of the absolute value to make the coefficient of x equal to 1
[tex]y=\sqrt{2}\sqrt{x-3}+3[/tex]
find a, h and k for [tex]y=\sqrt{2}\sqrt{x-3}+3[/tex]
[tex]a=1.41421356\\ h=3\\k=3[/tex]
the horizontal shift depends on the value of h when [tex]h > 0[/tex], the horizontal shift is described as:
[tex]g(x)=f(x+h)[/tex] - the graph is shifted to the left h units
[tex]g(x)=f(x-h)\\[/tex] - the graph is shifted to the right h units
the vertical shift depends on the value of k
Find the volume of the prism.
Answer:
I'm guessing it is 12000
Step-by-step explanation:
let me now if it is wrong
[tex] \Large\tt{ANSWER}[/tex]
[tex]\LARGE \tt{12000 \: cm^3 }[/tex]
[tex]\Large \tt{SOLUTION}[/tex]
Formula of Rectangular PrismVolume = Length × Width × Height
Volume = Length × Width × HeightVolume = 60 cm ×20 cm × 10 cm[tex]\Large \tt{12000 \: cm^3 }[/tex]For More Information, Visit this Link.
→ What is Volume:
brainly.ph/question/6286323Which fraction equals 29 }}16 ?
I need help with this question!
Answer:
B
Step-by-step explanation:
On a recent math assignment consisting of 32 problems, Wendy had 5 application problems, and the
rest involved only computation. What percent of the problems were only computation?
Answer:
84.375%
Step-by-step explanation:
Total no. of computation problem=32-5=27
Total no. problems in the assignment=32
=) per%= 27/32×100%=84.375%
PLS MARK ME AS BRAINLIEST
The Greyhound bus going to Michigan leaves the station every 20 minutes. Another bus going to Arkansas leaves the station every 40 minutes. If it is 10:40 a.m., what will be the first time both Greyhound buses leave the station at the same time?
The Greyhound bus going to Michigan leaves the station every 20 minutes.
it's 10:40
so next departure on 10:60 => 11:00 then 11:20 then 11:40...
Another bus going to Arkansas leaves the station every 40 minutes.
it is 10:40
so next departure on 11:20 then 12:00
=> 11:20
arrange in descending order
Answer:
7 / 16, 3 / 7, 1 / 5
Step-by-step explanation:
1 / 5 = 0.2
3 / 7 = 0.428
7 / 16 = 0.4375
In descending order,
0.4375, 0.428, 0.2
Hence the answer is 7 / 16, 3 / 7, 1 / 5
Graham carves a block of wood shaped like a cube with a square pyramid on top. How much paint will Graham need to paint the toy? Enter your answer in the box.
Divide the box into two parts for easy way answer
For cube:-
Side=a=12cmTSA
6a²6(12)²6(144)864cm^2Cancel one side area
TSA=864-144=720cm^2For triangular pyramid:-
Area of one base
0.5(Base)(Height)0.5(12)(15)6(15)90cm^2Area of four sides=90(4)=360cm^2
Total surface area:-720+3601080cm^2Answer:
1080 cm^2
Step-by-step explanation:
∴ Given:
Graham carves a block of wood shaped like a cube with a square pyramid on top.
∴To Find:
How much paint will Graham need to paint the toy?
∴Solve:
Base on the given:
[tex]S=5a^2+4ah\cdot\frac{1}{2}[/tex]
= [tex]5\cdot12^2+4\cdot12\cdot15\cdot\frac{1}{2}[/tex]
[tex]=1080cm^2[/tex]
Hence [tex]1080cm^2[/tex] of paint is needed.
~lenvy~