Describe a pair of independent events and a pair of dependent events. Explain your reasoning.

Answers

Answer 1

Independent events are the ones whose occurrence is unrelated to any other event.

Dependent events include those that are dependent on previous events.

What is described as independent events?

If the probability of an event A occurring is not impacted by the occurring of some other event B, then A & B are referred to as independent events.

Consider the example of a die roll. If A is the event 'the number appearing is odd' and B is the event 'the number showing up is a multiple of 3,'

P(A) = 3/6 = 1/2

P(B) = 2/6 = 1/3

A and B are also the events 'the number showing up is odd & a multiple of 3', implying that;

P(A ∩ B) = 1/6

P(A│B) = P(A ∩ B)/ P(B) = 1/2

Then P(A) = P(AB) = 1/2, implying that the happening of event B has had no effect on the probability of occurring of event A.

What is described as dependent events?

Dependent events include those that are dependent on previous events. The outcomes of previous events have an impact on these events. Dependent events are two or maybe more events that are dependent on one another.

When two events, A and B, are interdependent, the probability of their occurrence is:

P(A and B) = P(A) · P(B|A)

Assume we desire to have a queen.

The chances of obtaining a queen on the first draw are 4 from out 52 cards. If we receive a queen in the first draw, we have a 3 out of 51 chance of obtaining a queen in the second draw.

As a result, these are referred to as dependent events because the probability of a second event is determined by the results of the first draw.

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Related Questions

Evaluate a +6 for a = 10.
06
60
16

Answers

The answer is:
60
Since 10 + 6= 60

Answer:

16

Step-by-step explanation:

a+6 where a=10

You'd substitute the number 10 where the variable 'a' is.

(10)+6

Then, you'd solve the expression.

10+6=16.

Thus, the answer is 16.

Hope this helps.

A weaver needs 7.8 meters of yarn for one project and 2.6 meters of yarn for a second project. What is the total amount of yarn, in meters, the weaver will need for both projects, written as a decimal?

Answers

Answer:10.4 written as a decimal is 0.104

Step-by-step explanation:

right or wrong tell me in comment

is 81.848 irrational number ​

Answers

Answer:

Yes it's is irrational

Step-by-step explanation:

Answer: rational

Step-by-step explanation:

Make a conjecture about each possible value for the following scenario:
The relationship between the area of a rectangle and a
triangle with the same base and equal heights.

Answers

The conjecture that can be made with regards to the given scenario is, given that the variable in the equation for the areas of the triangle and rectangle are the same;

The area of the triangle is half the area of the rectangle

What is a conjecture?

A conjecture is a conclusion or opinion which is based on partial or incomplete details or information ;

An appropriate conjecture that can be made with regards to the areas of the rectangle and triangle is obtained as follows;

Let the b represent the common base length, and let h represent the common height, we have;

Area of a triangle, At = 0.5•b•h

Area of a rectangle, Ar = b•h

Which gives;

At/Ar = (0.5•b•h/b•h) = 0.5

The conjecture that can be made is that the area of the triangle is half the area of the rectangle.

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Find the nth term of this quadratic sequence
4, 9, 16, 25, 36,

Answers

Answer:

(n+1)^2.

Step-by-step explanation:

Term:         1      2       3       4        5

Value        4     9       16     25      36

=               2^2  3^2   4^2   5^2    6^2

So, the nth term is (n + 1)^2.

N^2 +2n+1

Find what each number has to add to get each number
4->9->16 ect
+5, +7, +9,+11
Find the difference of that
+2 each time that gives you your 2n
Then half the 2n and that gives u ur +1
Now select any number and put it room the formulae u man’s to see if it works


For each system, choose the method of solving that seems easier to use. Explain why you made each choice. Solve each system.
2x - 3y = 4 . 2x - 5y = -6

Answers

By elimination, the solution of the system of equations, 2x - 3y = 4 and 2x - 5y = -6, is (19/2 , 5).

A system of equations is a set of two or more equations which includes common variables. To solve system of equations, we must find the value of the unknown variables used in the equations that must satisfy all the equations.

There are three methods that can be used to solve system of equations.

1. Elimination

2. Substitution

3. Graphing

Use the elimination method since subtracting the two equations will eliminate the variable x.

2x - 3y = 4     (equation 1)

2x - 5y = -6    (equation 2)

0x + 2y = 10

y = 5

Substitute the value of y to any of the two equation and solve for x.

2x - 3y = 4     (equation 1)

2x - 3(5) = 4

2x = 4 + 15

2x = 19

x = 19/2

Hence, the solution of the system of equations is (19/2 , 5).

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what effect does eliminating the lowest value -6 from the data set have on the mean and median

Answers

By eliminating values from the given the given set , it will reduce the mean and median value. Mean = 23.5 and Median = 5

According to the question, the given set of values for the calculation of mean and median is as follows:

Values: = (-6, 3, 3, 3, 3, 5, 6, 6, 8, 10)

After eliminating -6 from the given set of values:

Values: = (3, 3, 3, 3, 5, 6, 6, 8, 10)

Now the median is the middle tern from the given set of the values:

Median = 5

And mean is : 3 + 3 + 3 + 3 + 5 + 6 + 6 + 8 + 10 / 2 = 47/2 = 23.5

Hence, the correct answer is median = 5 and mean = 23.5

What is mean and median?

The mean is the average value of the given set of the data. It is the addition of all the values and later divide it by two. Similarly, median is the middle value from the set of values provided it should be arranges in the order ascending to descending.

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You have 7 quarters, 6
dimes, 4 nickels and 25
pennies. How much money
do you have?

Answers

Answer:2.80

Step-by-step explanation:

Answer:

$2.80

Step-by-step explanation:

One quarter is worth 25 cents. 4 quarters is a dollar.

0.25 x 7 = $1.75

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

One dime is worth 10 cents

0.10 x 6 = 0.60 cents

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

One nickel is worth 5 cents

0.5 x 4 = 20 cents

One penny is worth 1 cent

It's rather simple here. 25 pennies is 25 cents

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

Now, you have to add all the numbers together.

1.75 + 0.60 + 0.20 + 0.25 = 2.80

Add the correct label and your final answer is $2.80

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

Hope this helps!

Have a great day and God bless! :)

find the volume of this object.

PLEASE HURRY

Answers

Answer:

24 maybe?

Step-by-step explanation:

I think 24 because if you multiply all of them it gives you this answer.

Answer: Total volume= 71.21 in^3

Step-by-step explanation:

The volume of the sphere= (4/3)*π*(2^3) = 33.51 in^3

The volume of the cylinder= π*(2^2)*3 = 37.7 in^3

Total volume= 71.21 in^3

Complete the pattern:
2 +
20 +
200 +
2,000 +
= 6
= 60
= 600
= 6,000

Answers

Answer:

2+4=6

20+40=60

200+400=600

2,000+4,000=6,000

Step-by-step explanation:

the difference between the areas of the figures is less than 2

Answers

Answer:

Step-by-step explanation:


Determine whether \triangle X Y Z is an acute, right, or obtuse triangle for the given vertices. Explain.
X(1,2), Y(4,6), Z(6,6)

Answers

The triangle having vertices X(1,2), Y(4,6), Z(6,6) is obtuse.

According to the Pythagorean Inequality Theorem, a triangle whose sides measure a, b, and c where c is the largest, the triangle can be characterized as:

acute if [tex]c^{2} < a^{2} + b^{2}[/tex]obtuse if [tex]c^{2} > a^{2} + b^{2}[/tex]right if [tex]c^{2} = a^{2} + b^{2}[/tex]

XY = [tex]\sqrt{(4-1)^{2} + (6 - 2)^{2} }[/tex]

∴ XY = 5

YZ = [tex]\sqrt{(6 - 4)^{2} + (6 - 6)^{2} }[/tex]

∴YZ = 2

ZX = [tex]\sqrt{(6 - 1)^{2} + (6 - 2)^{2} }[/tex]

∴ ZX = 6.4

∴The longest side is ZX = 6.4

Hence, a = XY, b = YZ and c = ZX;

Consider          [tex]a^{2} + b^{2}[/tex]:

= [tex]XY^{2}[/tex] + [tex]YZ^{2}[/tex]

= [tex]5^{2} + 2^{2}[/tex]

= 29.

Now consider [tex]c^{2}[/tex]:

= [tex]6.4^{2}[/tex]

= 40.96.

Thus, [tex]c^{2} > a^{2} + b^{2}[/tex]

Hence, the triangle is obtuse.

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c. Estimation Estimate when first-class postage was 37 cents.

Answers

Estimation Possible year, 2005, when first-class postage was 37 cents, between 2001 and 2006.

What does that mean First class postage?

First-Class mail is sent when a stamp is applied to an envelope and deposited in a mailbox. First-Class Mail is thus equivalent to "ordinary" mail. The ever-popular First-Class Mail is just one; the postal rate of the several services or "classes" that the Estimation Possible year, 2005, when first-class postage was 37 cents, between 2001 and 2006.

What is the postal rate?

A fee will be assessed by a government postal service for the shipping and delivery of letters.

Assuming the value is supplied,

a) POSTAGE RATES L1=x

L2=y

y= -0.004x2+0.859x+27.53

y=28.381

b) Integers from -10 to 17 are the domain. Range: whole number between 18 and 42

c) From 2001 to 2006, first class postage cost 37 cents.

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State whether sentence is true or false. If false, replace the underlined word or phrase to make a true sentence.
The ₋Law of Sines can be used to find an angle measure when given three side lengths.

Answers

Given  statement 'The ₋Law of Sines can be used to find an angle measure when given three side lengths.' is False.

The correct statement is 'The ₋Law of cosines can be used to find an angle measure when given three side lengths.'

We know that an oblique triangle is a triangle which is either acute triangle or obtuse triangle but not a right triangle.

We know that the Law of Sines defines the relationship between the sides and angles of an oblique triangle.  

And to use the Law of Sines we must know either two angles and one side of the triangle or two sides and one of the opposite angle to them (SSA).

But, the Law of Cosines is used to find the remaining parts of an oblique triangle.

This means, in case of the  Law of Cosines when either the two sides and the angle included is given or the lengths of the three sides are given then we find the remaining angle measure.

Therefore, given statement 'The ₋Law of Sines can be used to find an angle measure when given three side lengths.' is False.

The correct statement is 'The ₋Law of cosines can be used to find an angle measure when given three side lengths.'

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a rectangular prism has a volume of 125 cubid inches. its width is four times its lenght. its height is one-fourth the lenght. what are the dimensions of the prism? (Please help me)

Answers

A rectangular prism has a volume of 125 cubid inches. its width is four times its lenght.

Given:

the volume of rectangular prism = 125 cubic inches

Let the length of the rectangular prism be 'x'.

width = 4x

height = x/4

volume =( x)(4x)(x/4)=125

x^3=125

x=5

Length=5

Hieght=5/4

Width=20

Rectangular prism:

In terms of geometry, a rectangular prism is a solid 3-dimensional object having six faces and a rectangular base. Rectangular prisms can be of two types, namely right rectangular prisms and non-right (oblique) rectangular prisms.

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After 8 years, what is the total amount of a compound interest investment of $25,000 at 3% interest, compounded quarterly?

Answers

The correct answer is:      D) $31,752.78

Explanation:

The formula for compound interest is:

where A is the total amount, p is the principal invested, r is the interest rate as a decimal number, n is the number of times per year the interest is compounded, and t is the number of years.

The principal in this problem is 25,000; the interest rate is 3% = 3/100 = 0.03; the number of times the interest is compounded is 4; and the number of years is 8:

What is an equation of the line that passes through the points (−2,5) and (−2,−8)?

Answers

Answer:

Y=5

Step-by-step explanation:

1) find gradient

2) find equation of line using the formula y-y1=m(x-x1) where m is the gradient.

Can some one pls help me it is my last question. Thank you!

Answers

Answer:

17.91!

Step-by-step explanation:

It would be, 17.91044776, so if you round it, you should get 17.91!

Hope this helps!!


Simplify by combining like terms. 5 f-(5 d-f)

Answers

The simplification by combining like terms of 5f - (5d - f) is 6f -5d.

According to the given question.

We have an expression 5f - (5d - f).

As we know that, like terms are terms whose variables (and their exponents such as the 2 in x2) are the same. When we combine like terms, such as 2x and 3x, we add or subtract their coefficients.

Since, we have to combine the like terms of the given expression

5f -(5d -f).

Here 5f and -f are the like term.

So, we subtract coeffcients of f to simplify the given expression.

Therefore, the simplification of 5f - (5d -f) is given by

5f - (5d - f)

= 5f - 5d + f

= 6f - 5d

Hence, the simplification by combining like terms of 5f - (5d - f) is 6f -5d.

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SENSE-MAKING Determine whether ΔM N O ≅ ΔQ R S . Explain.
M(4,7), N(5,4), O(2,3), Q(2,5), R(3,2), S(0,1)

Answers

A translation maps one triangle onto the other. Each pair of corresponding sides has the same measure, so they are congruent. △MNO ≅ △QRS by SSS.

What exactly do you mean by congruent?

If two numbers can be placed exactly over one another, they are said to be "congruent." When placed one on top of the other, the two bread slices are the same size and form. Things that are precisely the same size and shape are said to be congruent.

Use the Distance Formula to find the lengths of.

MN , NO , OM

MN has end points M(4 , 7)  And N( 5, 4 )

MN = [tex]\sqrt{ (x_{2} - x_{1}^{2}+ ( y_{2} - y_{1} )^{2}[/tex]

      = [tex]= \sqrt{(1)^{2} + ( -3)^{2} }[/tex]

       [tex]= \sqrt{ 1 + 9 }[/tex]

         [tex]= \sqrt{10}[/tex]

NO has end points N(5, 4) and O(2, 3).

NO = √( 2 - 5 )² + ( 3- 4 )²

      = √( - 3)²  + ( -1)²

      = √ 9 + 1 = √10

OM has end points O(2, 3) and M(4,7)

OM = √( 4 - 2 )² + ( 7 - 3 )²

      = √ (2)²  + ( 4 )²

       = √20

Similarly, find the lengths of QR, RS , SQ

QR has end points Q(2, 5) and R(3, 2).

QR = √( 3 - 2)² + ( 2 - 5 )²

     = √(1)² + ( -3)²

     = √ 1 + 9

      = √10

RS has end points R(3, 2) and S(0, 1).

RS = √( 0- 3)² + ( 1 - 2 )²

     = √( -3)² + (-1)²

      = √9 + 1 = √10

SQ has end points S(0, 1) and Q(2, 5).

SQ = √ ( 2 - 0 )² + ( 5 - 1 )²

      = √ 4 + 16  = √20

So, MN ≅ QR , NO ≅ RS and OM ≅ SQ

A translation maps one triangle onto the other. Each pair of corresponding sides has the same measure, so they are congruent. △MNO ≅ △QRS by SSS.

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70. The histogram below shows the heights of 300 ran-
domly selected high school students. Which of the
following is the best description of the shape of the
distribution of heights?
I
(a) Roughly symmetric and unimodal
(b) Roughly symmetric and bimodal
(c) Roughly symmetric and multimodal
(d) Skewed to the left
(e) Skewed to the right

Answers

The histogram is unimodal as it has only one peak point and roughly symmetric because both sides of the histogram when flipped across the axis of symmetry does not overlap completely.

What is Histogram?

Histogram is a diagram consisting of rectangles whose area is proportional to the frequency of a variable and whose width is equal to the class interval.

Given is histogram that shows heights of 300 randomly selected high school students.

The shape that best describes the distribution of heights is - Roughly symmetric and unimodal. Unimodal histograms have only one peak in the distribution. It can be seen from the image that the graph has only one peak point. However, if we check the symmetry of this histogram by drawing the axis of symmetry, then both sides will not overlap completely. So it is Roughly symmetric.

Therefore, the histogram is unimodal as it has only one peak point and roughly symmetric because both sides of the histogram when flipped across the axis of symmetry does not overlap completely.

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Solve the following system of equations for all three variables.
-x+ 5y + 4z = 7
x+10y + 4z = -1
x + 8y + 4z = -5

Answers

Answer: 1. x=−7+5y+4z,   y=7/5+x/5−4z/5,  z=7/4+x/4−5y/4

2. x=−1−10y−4z         y=−1/10−x/10−2z/5       z=−1/4−x/4−5y/2

3. x=−5−8y−4z          y=−5/8−x/8−z/2            z=−5/4−x/4−2y

Step-by-step explanation:

Write the expression as a number in scientific notation.



7.2 x 107

7.2 x 104

6.4 x 107

6.4 x 104

Answers

Answer:

7.2 × 10⁷ = 72,000,000

7.2 × 10⁴ = 72,000        

6.4 × 10⁷ = 64,000,000

6.4 × 10⁴ = 64,000        

*image*   = 64,000        

Step-by-step explanation:

Solve the equation.

( 8 × 10² ) ( 3.2 × 10⁵ )

          4 × 10³

Step 1: Solve the parenthesis

( 8 × 10² )      ( 3.2 × 10⁵ )

      ↓                     ↓

= (800)        = (320,000)

Step 2: Solve for the denominator

  4 × 10³  

      ↓

= 4,000

Step 3: Plug in the answers & solve

1.       ( 800 ) ( 320,000 )

2.               4,000

1.        800 × 320,000

                    ↓

         = 256,000,000

2.       256,000,000

                4,000

                    ↓

          256,000,000 ÷ 4,000

                    ↓

          =  64,000  

I hope this was helpful! (✿◠‿◠)

Have a blessed day!

Find the slope of the line that passes through the points (8, -2) and (-13, 7). Enter answer as a fraction

Answers

Answer:

[tex] \frac{ - 9}{21} [/tex]

then simplify

Step-by-step explanation:

Slope =

[tex] \frac{y2 - y1}{x2 - x1} [/tex]

Rise

(-2)-(7)=-9

Run

[tex]8 - ( - 13) = 21[/tex]

Answer: 3/-7

Step-by-step explanation:

y2-y1 over x2-x1 is slope. your parenthesis go in the order of (x,y)

8=x1 -2=y1 -13=x2 7=y2

7 - -2 = 9

-13 - 8 = -21

9/-21

simplify to get 3/-7

What are the vertex and range of y = |x + 3| + 2?

(−3, 2); 2 ≤ y < ∞
(−3, 2); −∞ < y < ∞
(0, 5); 2 ≤ y < ∞
(0, 5); −∞ < y < ∞

Answers

Answer:

(−3, 2); −∞ < y < ∞

Step-by-step explanation:

what is monomial,binomial,trinomial and polynomial

Answers

Answer:A polynomial consisting one nonzero term is called a monomial. For eg :- 5, 3x, [tex]\frac{1}{3}xy[/tex] are all monomials.A polynomial consisting two nonzero terms is called a binomial. For eg :- (3 + 6x), (x - 5y), (5x²y + 2yz) are all binomials.A polynomial consisting three nonzero terms is called a trinomial. For eg :- (8 + 3x + x²), (3y - 5xy + 7xy²), (xy + yz + zx) are all trinomials.An algebraic expression in which the variables involved have only non-negative integral powers is called a polynomial. For eg :- 5x³ - 4x² + 6x - 3 is a polynomial in one variable x , 9y⁴ + 6y³ + 10y² - 8y + [tex]\frac{2}{3}[/tex] is a polynomial in one variable y.

what is 4+7-2+9 im not able to figure it out

Answers

Answer:

18

4+7-2+9

11-2=9+9=18

Answer:

18

Step-by-step explanation:

Since according to PEMDAS, the value of when addition and subtraction is used is the same. Basically, in this equation you should do it in order. So, 4+7=11. Then 11-2 is 9. 9+9 is 18. So, the answer is 18.

Write a function g​ whose graph represents a translation 5 units up of the graph of f (x) =3x

Answers

The required graph of the function whose  translation 5 units up of the graph of f (x) =3x is g(x) = 3x + 5.


To determine a function g​ whose graph represents a translation 5 units up of the graph of f (x) =3x.

Here,
Given function f(x) = 3x
Now, for the upward translation by 5 units,
The function can be changed as the output of F(x) by +5 units so,
g(x) = 3x + 5

Thus, the required graph of the function whose  translation 5 units up of the graph of f (x) =3x is g(x) = 3x + 5.

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I NEED THIS ASAP
(4r–4)(r–1) solve and simplify

Answers

Answer:   4r2−8r+4

Step-by-step explanation:    

(4r−4)(r−1)

=(4r+−4)(r+−1)

=(4r)(r)+(4r)(−1)+(−4)(r)+(−4)(−1)

=4r2−4r−4r+4

=4r2−8r+4

 

Hope u get it  Correct <3

Is division of integers commutative? Give an example supporting your answer.

Answers

Answer:

No. When we change the places of the number, the results also changes

Step-by-step explanation:

4 / 2 = 2

2 / 4 = 0.5

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