Answer:
The expected number of defective batteries to be pulled out is 0.9, which rounded to the nearest integer gives a total of 1, that is, 1 of the 3 batteries is expected to be defective.
Step-by-step explanation:
Given that a box contains 3 defective batteries and 7 good ones, and I reach in and pull out three batteries, to determine what is the expected number of defective batteries, the following calculation must be performed:
3 + 7 = 100
3 = X
10 = 100
3 = X
3 x 100/10 = X
300/10 = X
30 = X
3 x 3/10 = X
0.9 = X
Therefore, the expected number of defective batteries to be pulled out is 0.9, which rounded to the nearest integer gives a total of 1, that is, 1 of the 3 batteries is expected to be defective.
Nine students are running for the school council. The student with the most votes will become class president while the student with the second-highest
votes becomes vice president, and the student with the third-highest number of votes becomes secretary How many different ways could this happen?
Answer:
I believe this could happen 27 different ways.
Step-by-step explanation:
The rectangle is 9 feet long and 8 feet wide. What is the area of this rectangle? asap
Answer:
72 ft squared
Step-by-step explanation:
area = width times height
ANSWER ASAP
The entrance to a museum is Paris is shaped like a square pyramid. The
area of the base of the pyramid is 1,227 square meters, and the height is
21 meters.
Which measurement is closest to the volume of the pyramid in cubic
meters?
Answer:
8589 cubic meters
multiply base times height then divide by 3
does anyone know the answer for this?
Answer:
8 cm
Step-by-step explanation:
The area of the shaded portion is:
[tex]a = \pi \times (( {r1)}^{2} - {(r2}^{2})) [/tex]
A=39π cm^2
r1 is the radius of the large circle
r2=5 cm
So,
[tex]39\pi = \pi \times (( {r1)}^{2} - {5}^{2} ) \\ r1 = 8 \: cm[/tex]
URGENT!!! PLEASE HELP
Answer: System 1 has an infinite number of solutions and System II has no solutions.
Step-by-step explanation:
If we look at system 1, we see that if we multiply the first equation by 2 and subtract the y value so that its on the same side as x, the equations are the same. That means that no matter the x or y value, it will be a solution.
If we look at system 2, however, we see that if we multiply the top equation by 3, the equations are the exact same except for the fact that the top equation has a -21. This means that no matter the x or y, there will never be a solution.
Who is the founder of macdonald
Answer:
Richard Mcdonald and Maurice Mcdonald
Step-by-step explanation
those are the people that found Mcdonalds
The distance from one point on the circle to another that passes through the circle is called a:
Answer: i think diameter, because the line passes through the center of the circle.
Step-by-step explanation: have a great day!! :)
Type the correct answer in the box. Use numerals instead of words. If necessary, use / for the fraction bar.
The difference of the range and the interquartile range of the data set represented by the box plot is
.
Answer:
the answer is 10
Step-by-step explanation:
The difference between the range and the IQR of the data set represented by the box plot is 10.
What is the interquartile range?An interquartile range is a measure of the difference between the upper and lower quartiles of a dataset.
W can find the values of the upper and lower quartile and median from a box plot.
The middle line is the median and the first line is the lower quartile and the last line is the upper quartile.
The formula used is Upper quartile - Lower quartile.
We have,
The range of a dataset is calculated as the difference between the maximum and minimum values in the dataset.
In this case, the range is:
Range = highest value - lowest value = 34 - 16 = 18
The interquartile range (IQR) is the difference between the third quartile (Q3) and the first quartile (Q1). In this case, the IQR is:
IQR = Q3 - Q1 = 29 - 21 = 8
So the difference between the range and the IQR is:
Range - IQR = 18 - 8 = 10
Therefore,
The difference between the range and the IQR of the data set represented by the box plot is 10.
Learn more about the interquartile range here:
https://brainly.com/question/29204101
#SPJ7
3
Select the correct answer.
Which value is needed to determine a confidence interval for a sample mean?
O A.
the sample proportion
O B.
the standard error of the mean
O C.
the margin of error for the proportion
OD
the population size
Reset
Next
Answer:
A
Step-by-step explanation:
I think I am not sure I just started to do this in school...
The circumference of a circle is about 33.912 inches. The circle's radius is __ inches.
Use 3.14 for π.
Answer:
5.4
Step-by-step explanation:
Circumference = 2 x 3.14 x radius
To find this information, you must first divide:
33.912 ÷ 2 = 16.956
Then, divide:
16.956 ÷ 3.14 = 5.4
So then your answer is:
Radius = 5.4
Hope this helps you out! : )
What is the area of a circle that has the diameter of 4?
Answer:
Hello! answer: 12.56
Step-by-step explanation:
Area for circles is found be doing
radius × radius × pi since we arent given radius we have to figure it out. But what we do know it diameter is just 2 times the radius so to undo that to find our radius we just do 4 ÷ 2 and 4 ÷ 2 = 2 so 2 is our radius now we will square it which is just fancy for multiply is by itself so 2 × 2 = 4
4 × 3.14 = 12.56 So 12.56 is our area! Hope this helps you!
What is 12/7 as an mixed number ??
Answer:
1 5/7
Step-by-step explanation:
[tex]1 \frac{5}{7} [/tex]
is the answer if you meant to say mixed fraction
Help pls number 2! SHOW WORK IF NEEDED ALSO WILL GUVE BRAINLIST!
Answer:
Statistical questions are asking for ABOUT how much not an exact amount or number.
The graphs of three functions are shown below. Which statements accurately compare the different functions? Check all that apply. The quadratic and absolute value functions share a y-intercept. The square root and quadratic function share an x-intercept. The absolute value and square root functions share the same domain. The square root function does not have a y-intercept. The square root function has a minimum domain value, while the other two functions have a minimum range value.
The functions are given below.
Parabolic function y = -(x + 1)² + 9Mode function y = - |x + 2| + 10Logarithmic function y = 1.5 log(x - 1)What is a function?A statement, principle, or policy that creates the link between two variables is known as a function. Functions are found all across mathematics and are required for the creation of complex relationships.
The graphs of the three functions are shown below.
The parabolic function is given as
y = -(x + 1)² + 9
The mode function is given as
y = - |x + 2| + 10
And the logarithm function will be
y = 1.5 log(x - 1)
More about the function link is given below.
https://brainly.com/question/5245372
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Answer: A, B, D
Step-by-step explanation:
Just took the instruction. Edge 2023
Jasmine spent 30$ on supplies to make 60 cupcakes for a bake sale.jasmine wants to have a profit of more than 90$.Write an inequality to find the price,p jasmine could charge for each cupcake.
(i need to find what inequality finds the answer)
ALL MY 100 POINTS FOR HELP PLEASE!!
Answer:
$1.50
Step-by-step explanation:
i) It takes the climber 800 seconds to climb to the top of the cliff.
During this time the energy transferred to the climber equals the work done by
the climber.
Calculate the power of the climber during the climb.
Power =
W
(Total 5 mar
Page 6 of 6
Answer:
gracias por lo 20 puntos
Step-by-step explanation:
Antonio watches a movie that is 1 hour and 45 minutes long. Which number line could show when Antonio watches the movie?
Answer:
1st one
Step-by-step explanation:
Answer:
Bottom left
Step-by-step explanation:
Those I-ready diagnostics suck don't they?
Helppppp meeeee. Plzzzzz it’s due in 5 minutes and is half my grade:(((((((((;(((((((
Answer:
5 millimeters
Step-by-step explanation:
the conversion rate from cm to mm is 1 to 10 so 0.5 would equal to 5 mil
it would be amazing if you marked this brainliest :)
Which description best summarizes the correlation between the calls made and the texts sent
Mm
Answer:
Weak positive
Step-by-step explanation:
From. Visual inspection of the scatter plot, the line of best fit will have a positive slope has values of x tends to increase with a corresponding increase in the value of y.
However, the points are scattered across the plotting area meaning that most of the points will be a bit farther away from the regression line. This means a weak correlation between the x and y variables will be obtained. Since the slope is positive, theb the relationship between the variables based on the scatterplot interpretation is a weak positive correlation.
What is the sum of degrees of each vertex for a tree with 6 vertices?
a) 5
b) 6
c) 8
d) 10
Answer:
C: Is the Answer
Step-by-step explanation:
Really hope it'll help!!
PEMDAS" notes and Integer rules
*
What is the value of this expression?
(6.3D Lesson 1)
-6. (-2 + 5)
A 42
B -18
с
18
D Not here
Answer:
B
Step-by-step explanation:
Answer:
-18
Step-by-step explanation:
First we start with brackets
(-2+5)= 3
Now
-6×3=-18
Write an equation of the form y = mx for the line shown below.
Answer:
y = -3x
Step-by-step explanation:
To get slope intercept, you divide both y values by both x values like this
[tex]\frac{y_2 - y_1}{x_2 - x_1}[/tex]
In this case this will be [tex]\frac{(-3 - 6)}{(1 - (-2))}[/tex]
This will become [tex]\frac{-9}{3}[/tex]
Divide those two to get -3, and now you get your slope intercept.
3) You flip a coin six times and then roll a six-sided die. Find the number of possible outcomes
Answer:
First coin Second coin outcome
H T HT
T H TH
T T TT
Step-by-step explanation:
First coin Second coin outcome
H T HT
T H TH
T T TT
The probability of the car having 4 doors is 1/2
What does that mean?
(A)It is neither unlikely nor likely
(B)It is likely
(C)It is impossible.
(D)It is definite.
Answer:
(A)It is neither unlikely nor likely
Step-by-step explanation:
answer is b
hope this helps
what is the name of this triangle
Answer:
right triangle
Step-by-step explanation:has a right angle
These marbles are placed in a bag and two
of them are randomly drawn.
What is the probability of drawing two
yellow marbles if the first one is placed back
in the bag before the second draw?
Give your answer as a ratio, reduced to
simplest terms.
[?]
Hint: Multiply the probability of the 1st Event by the
probability of the 2nd Event to get your answer.
HELP! ILL GIVE BRANLIEST :(
Answer:
B
Step-by-step explanation:
since x is GREATER than -25, the shaded part has to be on the right of -25
Answer: B
Step-by-step explanation:
The cost of 2 pounds of coffee is $17.95. To the nearest dollar, what is the cost of 5 pounds of coffee?
Answer:
89.75
Step-by-step explanation:
Sorry if its wrong!
Find the graph to the equation below plz 20 POINTS
Answer:
the last one option 4
Step-by-step explanation:
during a nature walk jayden identified 20 animals and plants.1/4 of what he identified were animals.how many were animals?