Find the probability that a student is not playing a sport or not taking a foreign
language using the Venn Diagram below.
Answers
Answer:
18/25
Step-by-step explanation:
Total number of students = 23+14+10+3 = 50.
14 out of 50 are playing sport and taking a foreign language.
So the answer is (50 - 14) / 50
= 36/50
= 18/25.
=========================================================
Explanation:
The wording your teacher provided is a bit strange in my opinion. Though I think they are referring to the people who aren't taking both classes at the same time, but they could be taking exactly one class.
We have 23+14+10+3 = 50 students total and 14 of them are taking both classes. So 50-14 = 36 students are taking exactly one class, or they are taking neither of the classes.
This leads to a probability of 36/50 = (2*18)/(2*25) = 18/25 which points to choice B as the answer.
------------------
Side note:
If it asked "what is the probability that a student is not taking a sport AND not taking a foreign language?", then the probability would be 3/50 because there are 3 people not taking either class out of the 50 total. So the keyword "and" is the change made here, instead of the "or".
Related Questions
Which equation has a greater rate of change than the linear function in the table?
х
-5
-3
у
-18
-8
1
12
3
22
A
y = 5х – 3
B
y = -4x – 18
С
y = -3.2 + 2
D
y = 6x + 13
Answers
The lengths of a certain species of fish are approximately normally distributed with a given mean ll and standard
deviation. According to the Empirical Rule, what percentage of the fish will have lengths within 1 standard deviation
of the mean?
-34%
-47.5%
-68%
-99.7%
Answers
The percentage of fish which will have the lengths within 1 standard deviation of the mean is 68%.
What is Empirical Rule?Empirical rule is a rule for normally distributed data which defines that almost all the data observed ranges between three standard deviations from the mean.
According to empirical rule,
68% of the data lies in the standard deviation of ±1.
95% of the data lies in the standard deviation of ±2.
99.7% of the data lies in the standard deviation of ±3.
Given,
The lengths of a certain species of fish are approximately normally distributed with a given mean and standard deviation.
According to the Empirical Rule, 68% of the fish will have lengths within 1 standard deviation of the mean.
Hence the required percentage is 68%.
Learn more about Empirical Rule here :
https://brainly.com/question/30700783
#SPJ5
show all steps solving 6x^2+x=5
Answers
6x^2 + 6x-5x-5=0
6x(x+1)-5(x+1)=0
(x+1)(6x-5)=0
x= - 1 5/6
Answer:
explain abit about it
please l don't understand
A bag contains 96 marbles, some red and some green. The ratio of red marbles to green ones is
2:4. How many green marbles are there?
Answers
giving brainliest
What is the magnitude (size) of –7.5?
A., because |–7.5| =
B.–7.5, because |–7.5| = 7.5
C.7.5, because |–7.5| = 7.5
D.7.5, because |–7.5| = –7.5
Answers
Answer: C
Step-by-step explanation:
7.5, because |-7.5|= 7.5
If a negative number is in between these bars | | then it becomes a positive.
Translate this sentence into an equation. 53 is the sum of 10 and Malik's savings. Use the variable m to represent Malik's savings.
Answers
Answer:
m+10=53
Step-by-step explanation:
maliks savings=43
If f(x)f(x) is an exponential function where f(3.5)=10f(3.5)=10 and f(7.5)=19f(7.5)=19, then find the value of f(13)f(13), to the nearest hundredth.
Answers
Answer:
f(13)≈45.92
Step-by-step explanation:
Leah walks to soccer practice on Saturday. She leaves her home and walks 600 meters north. Leah then turns east and continues on to the soccer field. The soccer field is 1000 meters from her home. How far east did Leah walk?
Answers
Answer:
800m
Step-by-step explanation:
this would be solved using Pythagoras theorem
we are to find the base
The Pythagoras theorem : a² + b² = c²
where a = length
b = base
c = hypotenuse
600² + b² = 100²
b² = 10000 - 3600
b² = 6400
take the square root of both sides
b = 800m
Please help me please I really need help please help me
Answers
Answer:
See attached
Step-by-step explanation:
See reflected image in the attached picture
Maurice bought 2 pound of grapes for $5.50. At this rate, how much would it cost to buy 6 pounds of grapes?
Answers
Answer:
16.5
Step-by-step explanation:
Answer:
16.50
Step-by-step explanation:
5.50 divided by 2 is 2.75
2.75 times 6 is 16.50
Hello struggling with this question. I need to know what are intervals in math. Please answer the question with the image.
Answers
Answer:
b
Step-by-step explanation:
When you see things that move at a non linear rate, it means that it is not a straight line. Automatically, you can eliminate A and D because the lines there between those numbers are straight. Now we have two non linear lines left and there is only one that is decreasing (going down and it is the line between -2 and 0.
Hope this helped :)
The half-life of a radioactive kind of antimony is 60 days. If you start with 720 grams of it, how much will be left after 180 days?
Answers
Why is the volume of a cone 1/3 the volume of a cylinder if the height and the radius are equal
Answers
Answer:
Step-by-step explanation:
88what is the minus 60 plus 40 =x plus y= x+9
Answers
60+40=x
y=x+9
MInus
x=100
y=109
Diffrence 9
Answer:
x = -20
y = -11
Pls help I will give branlist answer on the best one
Don’t explain it just strait up give me the answer for 1,2 and 3
Answers
Answer:
Plz explain how to do this. Do I put numbers or what?
Step-by-step explanation:
When you tell me, I'll answer! <3
Yani buys 4 dozen flyers for $7.25. What is
the cost of 12 dozen?
helppp now plz
Answers
Answer:
$21.75
Step-by-step explanation:
Divide $7.25 by 4 then multiply what you get from that by 12
12. The variable in the expression 9x + 63 is ? * A. =
B. 9
C. x
D. 36
Answers
Answer:
C. x is the variable
Step-by-step explanation:
easy...
A golf ball is hit in not the air represented by the equation y= -3x^2+18x+45. The maximum height the ball will reach is____ feet
Answers
Answer:
72 ft
Step-by-step explanation:
Here, we want to get the maximum height the ball will reach
the maximum height the ball will reach is equal to the y-coordinate of the vertex of the equation
So we need firstly, the vertex of the given quadratic equation
The vertex can be obtained by the use of plot of the graph
By doing this, we have it that the vertex is at the point (3,72)
Thus, we can conclude that the maximum height the ball can reach is 72 ft
Two decimals numbers, to the thousandths, that have a sum of about 5 and a difference of about 3. Then do the math to prove it works.
Answers
Answer:
The numbers are approximately: 4.000 and 1.000
Step-by-step explanation:
The given parameters can be expressed as:
[tex]\frac{x}{1000} + \frac{y}{1000} \approx 5[/tex]
[tex]\frac{x}{1000} - \frac{y}{1000} \approx 3[/tex]
Required
Determine the numbers
In each of the equations, multiply by 1000
[tex]1000 * [\frac{x}{1000} + \frac{y}{1000} \approx 5][/tex]
[tex]x + y \approx 5000[/tex]
[tex]1000 * [\frac{x}{1000} - \frac{y}{1000} \approx 3][/tex]
[tex]x-y \approx 3000[/tex]
So, we have:
[tex]x + y \approx 5000[/tex]
[tex]x-y \approx 3000[/tex]
Add the two equations
[tex]x + x + y - y \approx 5000 + 3000[/tex]
[tex]2x \approx 8000[/tex]
Solve for x
[tex]x \approx 8000/2[/tex]
[tex]x \approx 4000[/tex]
Substitute [tex]x \approx 4000[/tex] in [tex]x + y \approx 5000[/tex]
[tex]4000 + y \approx 5000[/tex]
[tex]y \approx 5000 - 4000[/tex]
[tex]y \approx 1000[/tex]
Using:
[tex]\frac{x}{1000} + \frac{y}{1000} \approx 5[/tex]
We have:
[tex]\frac{4000}{1000} + \frac{1000}{1000} \approx 5[/tex]
[tex]4.000 + 1.000 \approx5[/tex]
This implies that, the numbers approximates to 4.000 and 1.000, respectively.
What is the value of cose in the diagram below?
a)3/5
b)3/4
c)4/5
d)4/3
Answers
HELPPPPPP!!!!Will (-2)2 and -22 have the same solution?
Why or why not?
Answers
Answer:
Yes they would be because 2^2 or 2x2 =4 and -2^2 or -2x-2 also equals four because a neg x a neg equals a pos
Step-by-step explanation:
ASAP (WILL MARK BRAINIEST)
A large emerald with a mass of 812.04 grams was recently discovered in a mine. If the density of the
grams
emerald is 2.76 cm3 what is the volume? Round to the nearest hundredth when necessary and only
enter numerical values, which can include a decimal point. (6 points)
Answers
Which equation has the same solution as x2 + 16x – 11 = 4?
Answers
Answer:
x^2 + 16x - 15 = 0.
Step-by-step explanation:
x^2 + 16x – 11 = 4 Subtract 4 from both sides:
x^2 + 16x - 15 = 0 is one equation with the same roots.
Also any equation which is a multiple of the above will have the same roots. For example if we multiply by 3:
3x^2 + 48x - 45 = 0.
help solve this please
Answers
Answer:
f² - 11f - 12
Step-by-step explanation:
(f-12)(f+1) = f² + 1f - 12f - 12
The ratio of boys to girls in a volleyball club was 6: 8. There were 36 boys.
How many girls were there in the club?
Answers
Answer:
Might be wrong but 27. Hope this helps
Answer:
48 girls!
Step-by-step explanation:
boys = 6x
girls = 8x
6x = 36
x = 36/6 = 6
girls = 8x = 8 x 6 = 48
I hope im right!
Help me. :) :) :) :)
Answers
Option D
...................
Answer:
A prism reflecting light in straight lines.
Step-by-step explanation:
Prisms don't focus light nor diffract. They reflect. I don't think prisms reflect light into wavelengths either. Also, as you can see the rays of light are reflecting in straight lines. Therefore, the prism is reflecting light in straight lines.
Para llenar una piñata con dulces se necesitan 8.3 libras de dulces ¿cuantos kilogramos se tuvieron que comprar?
Answers
Answer:
Tuvieron que comprar 3.73 kg.
Step-by-step explanation:
Para obtener la respuesta, tienes que encontrar a cuántos kilogramos equivalen 8.3 libras de dulces y para esto puedes utilizar una regla de tres teniendo en cuenta que 1 libra es igual a 0.45 kilogramos:
1 libra → 0.45 kilogramos
8.3 libras → x
x=(8.3*0.45)/1=3.73 kg
De acuerdo a esto, la respuesta es que tuvieron que comprar 3.73 kg.
You choose two different movies on a list at random. Out of 10 movies on the list, 6 are action movies. The first movie you choose is an action movie. What is the probability that the second movie is also an action movie? Write your answer as a fraction in simplest form.
Answers
Answer:
5/9
Step-by-step explanation:
You have 10 movies in total. You take 1 out of 6 action movies. Now you have 5 action movies left, so that means the probability is 5/9. It's 5/9 because you chose 1 action movie out of 10 movies in total, so that means there are 9 movies in total left.
WILL MARK BRAINLIEST!!
Find the values of x and y
Answers
Answer:
Y = 5.8
X = 2.887
Step-by-step explanation:
to get X
[tex] \tan( 30 ) = \: \frac{x}{5} \\ x = \tan(30) \times 5 \\ x = 2.887[/tex]to get Y
using pythagoras theorem [tex] {y}^{2} = {2.88}^{2} + {5}^{2} \\ \\ {y}^{2} = 8.33 + 25 \\ \\ y = \sqrt{33.33} \\ y = 5.8[/tex]Answer:
y - 5.8
x - 2.887
pleasee mark Brainliest
Code: (B+C) - (D+A)
Help me it’s a puzzle
Answers
Answer:
-A+B+C-D or B+C-D-A
Step-by-step explanation:
Simplify the expression
