Answers
Related Questions
In a class of students, the following data table summarizes how many students have a cat or a dog. What is the probability that a student has a cat given that they do not have a dog? ( NO LINKS )
Answers
Given:
Number of students who has a cat and a dog = 5
Number of students who has a cat but do not have a dog = 11
Number of students who has a dog but do not have a cat = 3
Number of students who neither have a cat nor a dog = 2
To find:
The probability that a student has a cat given that they do not have a dog.
Solution:
Let the following events:
A = Student has a cat
B = Do not have a dog
Total number of outcomes is:
[tex]5+3+11+2=21[/tex]
The probability that a student has a cat but do not have a dog is:
[tex]P(A\cap B)=\dfrac{11}{21}[/tex]
The probability that a student do not have a dog is:
[tex]P(B)=\dfrac{11+2}{21}[/tex]
[tex]P(B)=\dfrac{13}{21}[/tex]
The conditional probability is:
[tex]P\left(\dfrac{A}{B}\right)=\dfrac{P(A\cap B)}{P(B)}[/tex]
[tex]P\left(\dfrac{A}{B}\right)=\dfrac{\dfrac{11}{21}}{\dfrac{13}{21}}[/tex]
[tex]P\left(\dfrac{A}{B}\right)=\dfrac{11}{13}[/tex]
Therefore, the probability that a student has a cat given that they do not have a dog is [tex]\dfrac{11}{13}[/tex].
Worth lots of point will give brainiest! Help ASAP! Has to be correct.
Find the measure of measurement of angle w.
Answers
Answer:
w=87
Step-by-step explanation:
4x+7=5x-13
7=x-13
x=20
Does this represent a proportional or non-proportional relationship
Answers
Answer:
Non-proportionalStep-by-step explanation:
It's Non-proportional because the graph does not
pass through the origin.
[tex]-------------[/tex]
hope it helps...
have a great day!!
A circular pool has a radius of 3.2 meters. which is closest to the area of the pool
Answers
Answer:
32.17
Step-by-step explanation:
[tex]A= \pi[/tex] × [tex]r^{2}[/tex]
A= [tex]\pi[/tex] × [tex]3.2^{2}[/tex] ≈ [tex]32.16991[/tex]
A= [tex]32.17[/tex]
Plz Help I'LL MARK AS BRAINLIEST AND GIVE THANKS PLZ GUYS
Answers
Answer:
the angle 2 is 45 because it is a angle on a straight line I think
Rewrite each number sentence using numerals and symbols.Find 5 less than the product of 8 and 4 *
Answers
Find the equation of the line.
Answers
Answer:
y = -3/2x + 3
Step-by-step explanation:
y = -3/2x + 3
pleease help me with 50 times 50 please
Answers
Answer:
2500
Step-by-step explanation:
f(x) = x°-9x
g(x) = x2 - 2x-3
Which of the following expressions is equivalent to f(x)/g(x), for x > 3
Answers
and
g(x)=x^2-2x-3
so you just need to divide f(x) by g(x)
Therefore:
f(x)/g(x) = (x^3-9x) / (x^2-2x-3)
and of course you need to factor these two function to see if some factor would cancel another
x^3-9x = x(x^2-9)=x(x-3)(x+3)
and
x^2-2x-3 = (x-3)(x+1)
The diameter of a truck wheel is 56.5 inches. What is the circumference of
the wheel?
Answers
Answer: 177.4999849 , or 56.5pi
Step-by-step explanation:
You simply divide the diameter by 2 to get the radius (28.25) and then plug into the circumference equation, 2*pi*r = Circumfrence.
Answer:
177.5 inches
Step-by-step explanation:
c = 2πr
d = r2
56.5/2=28.25
28.25x3.14= 88.705
88.705x2=177.41
Round, and you’ll get 177.5.
hii! please help asap. i’ll give brainliest
Answers
Answer: D
Step-by-step explanation:
Answer:
D. The last line plot
Step-by-step explanation:
It's easier to line up the heights in order.
[tex]4\frac{1}{2}, 4\frac{3}{4}, 5, 5\frac{1}{4}, 6\frac{1}{2}, 6\frac{3}{4}[/tex]
Then one-by-one, plot each of the heights to the line plot.
pleaseeeeee help!!!!!!!!!!
Answers
Answer:
The conditions for calculating a confident surgery were clearly not past.
Step-by-step explanation:
When you are testing a vaccine of a surgery, there needs to be a over 60% success rate at which the vaccine of the surgery is affective, otherwise, it is decided that that medical procedure of medicine isn't safe. There have been some exceptions in the past when a vaccine for example was used with a 40% success rate, only because the public required this vaccine in there time.
what is this please!!!!! 20= -6+2n
Answers
Answer:
n = 13
Step-by-step explanation:
20= -6+2n
Add 6 to each side
20+6= -6+6+2n
26 = 2n
Divide each side by 2
26/2 = 2n/2
13 =n
Plz help with this problem
Answers
Hope this is helpful :)
What is the 20th term of the sequence 9,11,13,15,17
Answers
20, 23,24,27,29,21,22,44,41,33, 12
Step-by-step explanation:
46
help is appreciated
(ANY LINKS OR WEBSITES WILL BE REPORTED)
:) will give brainliest
Answers
Answer:
95/9
Step-by-step explanation:
It will be easier for us to make the mixed numbers fractions.
2 1/3 = 7/3
8 2/9 = 74/9
now we want them to have the same denominator so we multiply the 7/3 fraction by 3/3.
21/9 + 74/9 = 95/9
wel swam 86 meters. Tyrel swam 53 meters.
Answers
Answer:
wel swam 86 meters. Tyrel swam 53 meters. so what is the question
Answer:
Im guessing its who swam faster.
which is an irrational number?
Answers
please help me.
Here are the final scores for professional soccer team for past 5 tournament
3, 4, 1, 5, 2
Find the mean absolute deviation of team's scores.
A. 1.2
B. 3
C. 0.6
D. 3.2
Answers
Answer:
B(3)
Step-by-step explanation:
reorder 1,2,3,4,5
middle number is 3
What is the graph of the system?
y 3x + 4
2x + y = -4
Your answer
Answers
Answer:
x
y
−
2
80
−
1
38
0
−
4
1
−
46
2
−
88
Step-by-step explanation:
ILL MARK YOU BRAINLIEST SHOW WORK THO PLS
3(s+4) = s+10+2s
Answers
Step-by-step explanation: it means no solution
hope it is helpful to you
Answer:
This equation has no solutions
Step-by-step explanation:
3(s+4)=s+10+2s
Distribute
3s+12=s+10+2s
Add like terms
3s+12= 3s+10
Subtract 3s from both sides
0 + 12=10
This equation has no solutions
Solve for b.
b - 16 = 83
b =
Answers
Answer:
Hello! answer: b = 99
Step-by-step explanation:
To find b we just have to add 83 + 16 so
83 + 16 = 99 and 99 - 16 = 83 So B = 99
Answer:
B=99
Step-by-step explanation:
in our school school we were told that if a number is on the other side of the equals and it is - when you take it to the other side it will be addition so that is what I've just done hope you understand and if it was addition when we take it to the other side it would be subtraction.
Diane runs each lap in 6 minutes. She will run less than 54 minutes today. What are the possible numbers of laps she will run today?
Use n for the number of laps she will run today.
Write your answer as an inequality solved for n.
Answers
Answer:
8 laps
Step-by-step explanation:
8 laps because it said LESS than 54 minutes B)
1
A central angle must have its vertex at...
A on the circumference of a circle
B) outside a circle
anywhere in a circle
D the center of a circle
Answers
Answer:
the answer is D. the center of a circle
Debra and her study partner flipped a coin 90 times. they flipped 40 heads and 50 tails. What is the experimental probability that the next flip will be heads upl
Answers
Answer:
1/2
Step-by-step explanation:
If you have two possible outcomes then the chance you will get heads is 1/2.
Have a wonderful day! :)
The age of 10 factory workers is shown in the table. If a 58 year-old worker is added, by how much will this increase the median age of the workers?
Answers
Answer: 3 years
Step-by-step explanation:
usa test prep
Without multiplying order the following products from least to greatest
Answers
Answer:
It would be:
4 5/9 x 1/2
4 5/9 x 10/10
4 5/9 x 6
Step-by-step explanation:
Patrick is driving form Sydney to Canberra. He travels for 288km trip in 4 hours. What's his average speed?
Answers
Answer:
v = 72 km/h
Step-by-step explanation:
Given that,
The distance covered by the Patrick, d = 288 km
Time taken, t = 4 hours
We need to find the average speed of Patrick. We know that the average speed of an object is equal to the total distance covered divided by total time taken. Let it is v. So,
[tex]v=\dfrac{d}{t}\\\\v=\dfrac{288\ km}{4\ h}\\\\v=72\ km/h[/tex]
So, his average speed is equal to 72 km/h.
A solid with volume 8 cubic units is dilated by a scale factor of k to obtain a solid with volume V cubic units. Find the value of k which results in an image with each given volume.
a. 216 cubic units
k=
b. 1 cubic unit
k=
c. 1,000 cubic units
k=
Answers
Answer:
a. k = 27
b. k = 216
c. k = 0.216
Step-by-step explanation:
The value of the scale factor can be given by the following formula:
[tex]k = \frac{Final\ Volume}{Initial\ Volume}[/tex]
where,
Initial Volume = 8 cubic units
a.
Final Volume = 216 cubic units
Therefore,
[tex]k = \frac{216\ cubic\ units}{8\ cubic\ units}[/tex]
k = 27
b.
Final Volume = 1 cubic units
Therefore,
[tex]k = \frac{216\ cubic\ units}{1\ cubic\ units}[/tex]
k = 216
c.
Final Volume = 1000 cubic units
Therefore,
[tex]k = \frac{216\ cubic\ units}{1000\ cubic\ units}[/tex]
k = 0.216
i need the correct answer please i’ll give u a brainliest
Answers
Answer:
V=75.4 m^3
Step-by-step explanation:
V=pi*r^2*h
V=pi*2^2*6
V=4*6*pi
V=24*pi
V=75.39 or 75.4 m^3