Mathematics College


In a class of 29 children, 15 like history and 21 like math. They all like at least one of
the two subjects.
What is the probability that a child chosen at random from the class likes math but
not history?

Answers

Answer 1

Answer:

14/29

Step-by-step explanation:

Answer 2

The probability that a child chosen at random from the class likes math but not history is 14/29  or 0.4827.

It is given that the in a class of 29 children, 15 likes history and 21 like math.

It is required to find the probability that a child chosen at random from the class likes math but not history if they all like at least one of the two subjects.

What is the Venn diagram?

It is defined as the diagram that shows a logical relation between sets.

The Venn diagram consists of circles to show the logical relation.

We have:

Total students in a class = 29

First we have to find the number of students who likes both subject for this we have draw a Venn diagram shown in the picture.

From the Venn diagram number of students who likes both = 7

And number of students likes only math = 14

Hence, the probability will be:

[tex]p = \frac{14}{29}[/tex]   ( because total number of students is 29)

or P = 0.4827 or 48.27%

Thus, the probability that a child chosen at random from the class likes math but not history is 14/29  or 0.4827.

Learn more about the Venn diagram here:

brainly.com/question/1024798

In A Class Of 29 Children, 15 Like History And 21 Like Math. They All Like At Least One Ofthe Two Subjects.What

Related Questions

i will give you brainliest whoever answers correct first!!

Answers

5/14 I think don’t take my word for it tho

I cut a pizza in half. Then I cut each half into 3 equal pieces and each piece into 2 equal slices. I sold 6 slices. What fraction of the pizza did I sell?​

Answers

Answer:

6/12

Step-by-step explanation:

im pretty sure, i did it on a paper correct me if im wrong sorry if i am

What is the slope of a line passing through (-10,10) and -50,12)

Answers

The slope is -2/40 for this line passing through these points, this is because (y2-y1/x2-x1)

HELP MEEEE plzzz Kkkakskwkwiks

Answers

Answer:

a

Step-by-step explanation:

find the area of this triangle. round to the nearest tenth. ​

Answers

Answer:

3,600

Step-by-step explanation:

at a pet store, 3/8 of the total animals were dogs. of those dogs 2/7 were labrador dogs. what fraction of the total pets were labrador dogs?
​

Answers

Answer: 3/28

Step-by-step explanation:

Here we go, whenever you see the word "of" this mean to multiply

2/7 x 3/8 = 3/28

 Answer: 3/28 .

I hope this help...

5th grade math. correct answer will be marked brainliest. what are the last 2 boxes?

Answers

Answer:

you forgot (2,28) :)

Step-by-step explanation:

the answer should be (5,37)

Y=3(x+2)^2-3 in standard form

Answers

Y= x2 - 12x + 15   Y=3(x+2)^2-3 in standard form

Need help with this question

Answers

Answer:

4 : 3

Step-by-step explanation:

QRS to VUT

[tex]\frac{QR}{RS} =\frac{VU}{UT} \\\\\frac{8}{12} =\frac{6}{x} \\\\8x=72\\x=9[/tex]

[tex]\frac{RS}{UT} =\frac{12}{9} =\frac{4}{3}[/tex]

Answer:

Step-by-step explanation:

△QRS:△VUT = 8:6 = 4:3

If 2/3z = 6, then z=

Answers

Answer:

z=9

Step-by-step explanation:

we are given: 2/3z=6

we need to find what z is by itself

6 is 2/3rds of what the value of z is.

to find z, we need to multiply both sides by 3/2 (the reciprocal of 2/3z, to make the coefficient of 1)

3/2*2/3z=6*3/2

z=9

hope this helps :)

z = 9

Step-by-step explanation:

2/3 . z = 6

2z/3 = 6

Multiple all terms by the same value to eliminate fraction denominator,

3 x 2z/3 = 3 x 6

2z = 18 ( 3,3 got cancelled)

Divide both sides of the equation by the same term,

2z/2 = 18/2

On Simplify,

z = 9.

*(2,2 gets cancelled and 18/2 = 9)

HELP ASAP!!! THANK YOU!!!

Answers

Answer:

Additional information required is

<DBA = 90°

Step-by-step explanation:

<DBA + <DBC = 180° [Linear pair]

=> <DBA = 180° - <DBC

=> <DBA = 180 - 90

=> <DBA = 90

Hence, both the angles <DBA = <DBC = 90°

As we know that when a perpendicular bisector bisects a straight line both the angles should be,

180° ÷ 2 = 90°

And above conditions also prove that

<DBA = <DBC = 90°

Hence, DE is a perpendicular bisector of AC

Is 2 a solution of 4z + 12 = 4? Complete the statement.​

Answers

Answer:

No im pretty sure its not a solution.

Step-by-step explanation:

See if “z” is 2 than the answer to the solution would be 20

Answer:

The solution is -2

Step-by-step explanation:

4z + 12 = 4

Subtract 12 on each side (4z + 12 - 12 = 4 - 12)

4z = -8

Divide 4 on each side (4z / 4 = -8 / 4)

z = -2

Michelle's quiz grades are 73, 75, 89, and 91. What score on her fifth quiz will make her average quiz grade at least 85?​

Answers

Answer:

in order to have an average of 85 on 5 tests, she needs to score a total of 85x5.

that's 425 points.

on the first 4 quizzes, she has earned 328 points.

she needs to score 97 points on the 5th quiz to average 85.

she needs to study very hard!

Help please
look picture and match

Answers

Answer:

Rectangle= Choice four

Square= Choice three

Trapezoid= Choice one

Parallelogram= Choice two

Rhombus= Choice five

-----------------------------------------------------

I think these are the correct answers. Hope this helps!

graph y = 1/2x+3
identify the x intercept
step by step explanation

Answers

Step-by-step explanation:

x-intercept: where y = 0

Set y to zero to find x.

0 = ½x + 3

-3 = ½x

x = -6

(-6, 0)

00:00 A florist measures the lengths of roses. The lengths in inches of a dozen roses are given below. 13.5 13.5 13.25 13.0 13.25 13.5 13.0 13.25 13.0 13.25 12.75 12.75 Part A How many dots should go above each data value in the line plot? Type a number in each box. Lengths of Roses (inches) 12.75 13.0 13.25 13.5 13.75 14.0 dot(s) above 12.75 dot(s) above 13.0 Review progress Question 7 of С​

Answers

Answer:

2: 12.75

3: 13.0

4: 13.25

3: 13.5

0: 13.75

0: 14.0

↓⊂∩⊥ββ⊄⊃БНasdsxЫ
c=9 d=8
6d-2c

Answers

Answer:

im sorry what?

Step-by-step explanation:


Can someone help me please

Answers

Answer:s The first top left corner for "which graph matches the equation y=-x+3":]

Step-by-step explanation:

Use the bar graph to find the probability of the event

Not spinning a 1

Answers

10+8 you add all the data to get your answer

Need help fast with this

Answers

Answer:

c

Step-by-step explanation:

For the first one the answer would be A. 4x^10y^2. The second one it would be D. 64. The third one would be B. -15m^6. And the fourth one it would be D. m^24.

Look at the image. Could someone please help me out? Only question B Thank you! WILL GIVE BRAINLYEST​

Answers

Answer:

y = 3

Step-by-step explanation:

2x+6y=5x+4y   if x=2

2(2)+6y=5(2)+4y

4+6y=10+4y

-4     =-4

6y=6+4y

-4y=   -4y

2y=6

/2=/2

y=3

Write the equation of a line parallel to and passes through the given line’s x-intercept. Leave answer
in slope-intercept form

Answers

Answer:

y = 1/2x - 4

Step-by-step explanation:

The x-intercept is when y = 0, so it would be:

-x  + 2 * 0 = 4

-x = 4

x = -4

That means the x-intercept is (0, -4)

The parallel line would have the same slope as this one, so:

[tex]-x+2y = 4\\2y = x + 4\\y = 1/2x + 2[/tex]

The parallel line has a slope of 1/2

So now you need to find the equation of a line that has a slope of 1/2 and passes through the point (0, -4)

Put it in point slope form:

y - (-4) = 1/2(x - 0)

y + 4 = 1/2x

y = 1/2x - 4

PLS HELP I ONLY NEED PART B

Kari and Julie are practicing for basketball tryouts. Kari makes 3 less than twice as many baskets as Julie.
Part A Write an expression with two terms for the number of baskets that Kari makes. Explain how you found your expression.
Part B Write an expression with three terms for the number of baskets that Kari and Julie make in all. Explain how you found your expression.

Answers

Answer:

X= 2y - 3  

Kari makes X tryouts. She also makes 3 less than twice as many as Julie which would be X= 2y - 3

Julie makes y tryouts and twice would be 2y.

Step-by-step explanation: hope this helps!!! :)

Answer:

X= 2y - 3  

Kari makes X tryouts. She also makes 3 less than twice as many as Julie which would be X= 2y - 3

Julie makes y tryouts and twice would be 2y.

Step-by-step explanation:

Laura had a toy robot collection. 4/7 of her 28 robots make noise. How many of Laura’s robots make noise? If you guys answer can you please do show you work.

Answers

Answer:

4/7 of 28 robots is 16.

Step-by-step explanation:

This is because 4/7 is equal to 16/28 when you simplify it. multiply 7 by four and you get 28 as your denominator and 16 as your numerator.

If f(x)=(x+1)(x-2)(x-3) represents a student's displacement from school in
kilometers, where x is measured in minutes, which of the following is an
accurate interpretation of the student's trip?
a) The student starts 6 km from school, walks to school and arrives at school
after 2 minutes, continues walking to the playground, turns around, walks
back to the school and arrives after 3 minutes.
b) The student starts 6 km from school, walks to school and arrives at school
after 2 minutes, waits there for 1 minute, then returns home.
c) The student starts 6 km from school, walks to school and arrives at school
after 2 minutes, turns back to their house to the playground, turns around,
walks back to the school and arrives after 3 minutes.
d) The student starts 6 km from school, walks to school and arrives 1 minute
later, sits by the school, returns home, arrives after 2 minutes, and then turns
around and arrives back at school for a second time at 3 minutes.
e) None of the above are correct
It

Answers

A is the answer to your question

Displacement means the distance traveled on a straight line to get to a certain destination. The interpretation of the given equation is option (a):

Given that:

[tex]f(x) = (x + 1)(x - 2)(x - 3)[/tex]

First, we calculate how far the student traveled to arrive at the school.

This means that we calculate f(0).

So, we have:

[tex]f(0) = (0 + 1)(0 - 2)(0 - 3)[/tex]

[tex]f(0) = ( 1)( - 2)( - 3)[/tex]

[tex]f(0) = 6[/tex]

The student walked 6km to school

When x = 2, it means:

[tex]f(x) = (x + 1)(x - 2)(x - 3)[/tex]

[tex]f(2) = (2 + 1)(2-2)(2 -3) = 0[/tex]

This means that the student got to school after 2 minutes

When x = 3, it means

[tex]f(x) = (x + 1)(x - 2)(x - 3)[/tex]

[tex]f(3) = (3 + 1)(3-2)(3 -3) = 0[/tex]

This means that the student walked away, turned back and got to school after 3 minutes.

From the given options, option (a) fits the above description.

Read more about speed, displacement and time at:

https://brainly.com/question/862972

Evaluate the expression for the given value of the variable 5 x (h + 3) for h = 7

Answers

The answer is 50 because h=7 so 7+3=10 and 5x10=50

factorise 3x square - 48x​

Answers

the answer would be 3x(x-16)

Need help fast please

Answers

first one
8 divide by 2 is 4
subtract the exponents
so 4w^7
second one
(-5)^3(-5)
=-125(-5)
=+625
Answer: 4w^7 and for the second problem it’s (-5)^4

Didn’t include steps because you need help fast but if you want them let me know I will put it in a comment

Given the functions f(x) = 10^x - 5 and g(x) = 2^X + 20. Graph the functions to determine which value of x is closest to where g(x) begins to exceed f(x).

A) x = 4
B) x=5
C) x=6
D) x=7

"^" means exponent

Its on usatestprep​

Answers

Answer:

b cuz yea its correc

Step-by-step explanation:

its b just b I know

Answer:

B he is correct

Step-by-step explanation:

wHy dO i FeEl HaPpy?

Answers

Answer:

Step-by-step explanation:

because its called an emotion have a great day

:)

Answer:

maybe you ate dark chocolate? lol

Step-by-step explanation:

:)

Other Questions
A square has vertices at the points A(-4,-4), B(-5,-4), C(-5,-3), and D(-4,-3). What is the area of this square? A. 1 square unit B. 4 square units C. 9 square units D. 2 square units The purpose of statistical inference is to provide information about the Which statement describes the synapse? A. It is the gap between neurons that ensures that information travels in multiple directions. B. It is the gap between neurons that ensures that information travels in one direction only.C. It is the part of the neuron that carries information through electrical impulses to the cell body.D. It is the part of the neuron that carries information through chemical impulses to the cell body. does someone know the answer to this ? The buzzing and grinding noises had stopped and were replaced by a high-pitched whir. Zach removed his pencil and closely inspected the tip. It still wasnt sharp enough. Zach pushed the pencil back into the sharpener. The high-pitched noise returned. Zach glivverflooped the pencil and took another look at the tip. It was just as dull as before.Which of the following statements could be reasonably inferred by looking at the evidence from the text?Select one:a. Zach was using an electric pencil sharpenerb. None of the answers are reasonable.c. Zach needed a no. 2 pencil to bubble his answers on a test.d. Zachs pencil was not yellow. 4 characteristics of bone as q connective tissue The image above depicts a triangular piece of land, ACD, with two roads, segments BE and CF, cutting across the property. The owner wishes to add a fence along segment BC. The entire triangular piece of land is an isosceles triangle in which sides AC and CD both equal 9 miles. Segment CF represents the perpendicular bisector of the 13 mile-long base. If triangles BKC and FKE, formed from the intersection of the two roads, are congruent and segment AE is equal to side CD, what is the length of segment BC?Select one:A. 2.5 milesB. 3.0 milesC. 3.5 milesD. 4.0 miles A power source of 6.0 V is attached to the ends of acapacitor. The charge is 12 C. Why were Europeans so powerful A stock currently sells for $49. The dividend yield is 3.4 percent and the dividend growth rate is 4.7 percent. What is the amount of the dividend to be paid in one year Wil following three angles for a triangle? 30 degrees 60 degrees 90 degrees difference between chlorenchyma and parenchyma What is a contribution that classical Greece made to modern Western civilization?belief in one deityelection of political leadersscientific theory of relativitygraphic novel in literature Please help me this is my final!!! !00 points!!!!!!!! I'll mark you BraInLieStWhy might government control of radio and television technology be important to totalitarian governments? How many moles of KBr are present in 500 ml of a 0.8 M KBr solution?1. 1.62. .43. .6254. 6255. .0016 find the value of x in each triangle. show your work on a separate piece of paper What did other characters say about lady macbeth? Who was it? Gemma sat in the moonlit shade beneath her favorite oak tree. Although she was past her curfew, she could not sleep. Not after the last dream. She could not remember anything from the dream, only the feeling of being lost and leaving everything behind. She buried her toes beneath the dirt and shuddered at the thought of the nightmare. Deciding that she was fretting over nothing, Gemma went back to the generously sized loft house that her mother and father had built before she was born. She smiled at the simplicity of it often. Morning came quickly, and Gemma quickly rose out of bed, remembering what day it was. She was a senior as of today, and could not miss her first day. After throwing a pair of khakis on and a loose feather shirt, she quickly wove her golden hair into separate braids and made her way out of the door. Her mother sat in the kitchen, laughing. The sight of her daughter running through the house like a crazed clown was the most hilarious thing she has seen all day. Sweetie, wait for me!, her mother shouted over the sound of the car door slamming. After they had arrived at Westbrooks Highschool, Gemma jumped out of the car and ran. Don't forget your lunch!, she heard her mother yell. Gemma turned around sharply, almost tripping, and ran back to grab her lunch. Her best friend, Amelia, spotted the golden-headed clown. She walked cautiously towards her friend. Gemma turned around in time to see her and laughed at Amelias facial expression. Both girls walked towards the building, laughing. Suddenly, Gemma stopped. Oh my..., someone in the crowd began. Amelia pushed her way through the crowd to see a student whose back was turned. At first, she was confused, not knowing why everyone was freaking out over a student not facing them, but then she took a closer look at the student. She was not standing up, her body was hanging, as if she was dead, but the girl was very much alive and even started speaking. Amelia only heard the word, remember. She turned to Gemma, who was in a trance. Gemma quickly snapped out of it and Amelia ran towards her friend. Does she...have wings? Or what are those? Gemma asked confusedly. Amelia stared at Gemma. No shes hanging but is somehow fine. The girls exchanged scared faces. But when they turned back towards the girl, she was gone and the students were walking away as if nothing had happened. They both slowly walked towards the school building, avoiding the area where the girl had stood. What do you think? Which of the following choices is NOT a common injury in sports?A.concussion and muscle strainsB.hemorrhage and arthritisC.ligament sprains and tearsD.bone fractures and ankle sprains