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

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

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 please
look picture and match

Answers

Answer:

Rectangle= Choice four

Square= Choice three

Trapezoid= Choice one

Parallelogram= Choice two

Rhombus= Choice five

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

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

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

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

i will give you brainliest whoever answers correct first!!

Answers

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

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.

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

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

Answers

Answer:

3,600

Step-by-step explanation:

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

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.

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!

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:

:)

↓⊂∩⊥ββ⊄⊃БНasdsxЫ
c=9 d=8
6d-2c

Answers

Answer:

im sorry what?

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...

HELP MEEEE plzzz Kkkakskwkwiks

Answers

Answer:

a

Step-by-step explanation:

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)

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:

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


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:

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:

factorise 3x square - 48x​

Answers

the answer would be 3x(x-16)

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)

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

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

Answers

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

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

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)

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

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