Answer:
1426.5 cm3
Step-by-step explanation:
okkkk assuming pi is 3.14, you use the formula 'volume of a hemisphere is 1/2x4/3xpi r3' use that formula!! and without pi the answer would be 255.6 pi cm3
Answer:1427.3 cm3
Step-by-step explanation:
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 )
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].
Is this unbiased or biased?
The Bernal leadership class is going to sell spirit t-shirts for students and needs to order a color that most students would like to wear, so they ask every fourth student entering the school about their favorite t-shirt color to make a decision about all Bernal students.
Biased, because some students may not like that color, and thus going off of the most popular opinion is only supporting the most popular color. Adding onto that, not every student even gets to vote since it is only every 4th student.
Rewrite each number sentence using numerals and symbols.Find 5 less than the product of 8 and 4 *
Find the equation of the line.
Answer:
y = -3/2x + 3
Step-by-step explanation:
y = -3/2x + 3
help is appreciated
(ANY LINKS OR WEBSITES WILL BE REPORTED)
:) will give brainliest
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
Solve for b.
b - 16 = 83
b =
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.
Use the calculator to see how much you can save. Let's say you start with $2,000, save $100 a month for 10 years, and the account has a 2.5% interest rate. Based off of that calculation, how much interest would you earn?
Answer:
2500
so first you have to 100x 10 then times 2.5
Step-by-step explanation:
Given the circle O with the diameter AB. Find x in degrees.
A) 40 degrees
B) 60 degrees
C) 80 degrees
D) 120 degrees
Answer:
B) 60 degrees
Step-by-step explanation:
. If you know the circumference of the circle, divide it by π to get the diameter.
which is an irrational number?
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
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! :)
A circular pool has a radius of 3.2 meters. which is closest to the area of the pool
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]
PLEASE HELP URGENT!!!!!!!!! 27 and 28
Answer:
27) 4.2
28) D
Step-by-step explanation:
Answer:
27. A 4.2ft
28. D
Step-by-step explanation:
27. Since this is a right triangle, we can use a^2 + b^2 = c^2
3.1^2 + b^2 = 5.2
b = sqrt(5.2^2 - 3.1^2)
b = 4.2ft A
28. sqrt(10^2 + 50^2) does not equat 54, this is not a right triangle.
Worth lots of point will give brainiest! Help ASAP! Has to be correct.
Find the measure of measurement of angle w.
Answer:
w=87
Step-by-step explanation:
4x+7=5x-13
7=x-13
x=20
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?
Answer: 3 years
Step-by-step explanation:
usa test prep
3x + 2y = 9
y = 4x – 1
(solve algebraically)
45 Points HELP RIGHT NOW!!!! Due in 2 hours!!!!! NO websites are allowed and please give me the order like this I need the steps too!!! I will mark you brainless too don’t answer for points or your reported
1 (table)
2(dog walker)
3(Ms Scholl)
Kayaker=12.5, so 12 knots
Commercials=9 commercials per hour
Dog= 7 miles
Tutoring=750 dollars
The diameter of a truck wheel is 56.5 inches. What is the circumference of
the wheel?
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.
f(x) = x°-9x
g(x) = x2 - 2x-3
Which of the following expressions is equivalent to f(x)/g(x), for x > 3
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
Answer:
B(3)
Step-by-step explanation:
reorder 1,2,3,4,5
middle number is 3
have x 50 notes and y N100 notes. There
are eight notes altogether and their total
value is N550. How many of each note do
I have
Answer:
hi
Step-by-step explanation:
hi
A recipe for lemonade calls for 4
cups of sugar for every 24 cups of cold
water. If you only have 2 cups of sugar,
how much water should you use?
What’s the answer to this?
Answer:
2
Step-by-step explanation:
what is this please!!!!! 20= -6+2n
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
i need the correct answer please i’ll give u a brainliest
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
Without multiplying order the following products from least to greatest
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:
pleaseeeeee help!!!!!!!!!!
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.
Choose the expression that shows the difference between x and y.
Answer:
the difference between x and y is x-y.
Step-by-step explanation:
ILL MARK YOU BRAINLIEST SHOW WORK THO PLS
3(s+4) = s+10+2s
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
HELP ASAP!
Find the surface area of the figure. Round to the nearest hundredth if necessary ^
Answer:
1187.52 yd^2
Step-by-step explanation:
SA=2πrh+2πr^2
R=9
H=12
So, 2(3.14)(9)(12)+2(3.14)(9)(9)=1187.57yd^2
pleease help me with 50 times 50 please
Answer:
2500
Step-by-step explanation: