Please show all work. Show the steps in transforming the expression on the right into the one on the left. (Verifying identities - this is precalc.)
(1+3cosx-4cos²x)/sin²x = (1-4cosx)/(1-cosx)

Answers

Answer 1

(1 – 3cosx – 4cos^2x) / sin^2x = 

(1+cos x)(1-4cos x) /(1-cos^2 x) =

 (1+cos x)(1-4cos x) /[(1-cos x)(1+cos x)] = 

(1-4cos x) /(1-cos x)
Factor:

1+cos(x))(1 – 4cos(x)) / (1 + cos(x))(1 – cos(x)) =

RHSCancel:(1 – 4cos(x)) / (1 – cos(x)) = RHSQED


Related Questions

Cameron runs 2000 meters in 8 minutes. How many meters can Cameron run in one minute?

Answers

Answer: 250 meters

Step-by-step explanation: Find the unit rate. 2000 divided by 8 will get you a unit rate of 250 meters per minute.

Ellie runs 2700 meters in 12 minutes. How many meters can Ellie run in one minute?

Answers

Answer: 225

Step-by-step explanation:

A student is taking a multiple-choice test in which each question has four possible answers. She knows the answers to 5 of the questions, can narrow the choices to 2 in 3 cases, and does not know anything about 2 of the questions. What is the probability that she will correctly answer A) 10, b) 9, c) 8 d) 7, e) 6, and f) 5 questions?
Do not need to answer every part if they are worked the EXACT same way.

Answers

The answer for this problem is c) 8

Aline'sslopeis5,andits
y -intercept
is
3. What
isitsequationin
slope -intercept
form?

Answers

The equation of the line in slope-intercept form is: y = 5x + 3.

What is the Equation of a Line in Slope-intercept Form?

If the value of the slope of a line, m, is known, and the value of its y-intercept, b, is known, the equation of the line in slope-intercept form would be written as:

y = mx + b.

Given the following:

Slope (m) of the line (m) = 5Y-intercept of the line (b) = 3

To write the equation of the line in slope-intercept form, substitute m = 5 and b = 3:

y = 5x + 3

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Question:

A line's slope is 5, and its y -intercept is 3. What is its equation in slope-intercept form?

you guess that lebron james would score 35 points during the game. he actually scored 28. find your percent error.

Answers

The error Percentage is 20%

What is Percentage?

A percentage is a component of a whole stated as a number between 0 and 100 rather than as a fraction. All of anything is 100 percent, half of it is fifty percent, none of something is zero percent. To determine a percentage, you divide the fraction of the entire by the whole itself and multiply by 100.

Solution:

We gussed that LeBron James would score 35 points, but he only scored 28 points

So, the difference was of 7 points (35-28)

Error Percentage = 7/35 * 100

Error Percentage = 1/5 *100

Error Percentage = 20%

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I have $270 and 10¢ but I need $395 and 44¢, how much more money do I need?​

Answers

you need 125.34 more dollars. 270.10-395.44=125.34

determine the area under the standard normal curve that lies to the right of the z-score 0.11 and to the left of the z-score 0.41.

Answers

The requried area under the standard normal curve that lies to the right of z = 0.11 and to the left of z = 0.41 is approximately 0.1153.

To find the area under the standard normal curve that lies to the right of the z-score 0.11 and to the left of the z-score 0.41, we can use a standard normal table or a statistical calculator.

The area to the right of z = 0.11 can be found by subtracting the cumulative area to the left of z = 0.11 from 1.

The area to the left of z = 0.41 can be directly read from the standard normal table.

Using a standard normal table or a calculator, we find:

The area to the left of z = 0.11 is approximately  0.5438.

The area to the left of z = 0.41 is approximately 0.6591.

Now, let's find the area between these two z-scores:

Area = (Area to the left of z = 0.41) - (Area to the left of z = 0.11)

Area = 0.6591 - 0.5438

Area ≈ 0.1153

So, the area under the standard normal curve that lies to the right of z = 0.11 and to the left of z = 0.41 is approximately 0.1153.

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Morgan has 98 baseball cards in his collection, which is twelve less than the product of 5 and the number of cards Tyler has.

Answers

Answer: Tyler has 22 cards

Step-by-step explanation:

To begin, we know that Morgan has 12 less than 5x Tyler's cards, so...

12+98=110

Now that we had 110, we then read that it is the PRODUCT of 5 and the number that Tyler has, so we will show that algebraically.

110=5x

Now, divide 110 by 5 to find X.

110/5=22

Tyler has 22 cards.

emilio drive 450 miles on 18 gallons of gas. how far can he travel on one gallon

Answers

Answer:

25

Step-by-step explanation:

450 divided by 18 is 25

Answer: 25 miles

Step-by-step explanation:
450/18 = 25
25 miles with 1 gallon of gas

Help me please!! i’ll give points and brainliest if you give a simple explanation and answer!

Answers

Step-by-step explanation:

1[tex] {10}^{ - 8} = \frac{1}{10^{8} } [/tex]

[tex]7 \times \frac{1}{ {10}^{8} } = \frac{7}{ {10}^{8} } [/tex]

2)

[tex]6 \times {10}^{ - 8} = 6 \times \frac{1}{ {10}^{8} } = \frac{6}{ {10}^{8} } [/tex]

520 cookies if 3/4 were eaten how many are left​

Answers

Answer: 130 cookies are left

Step-by-step explanation:

3/4 of 520 = 390

520 - 390 = 130

Answer:

130 cookies are left.

Step-by-step explanation:

1. Turn 3/4 into a decimal

3 ÷ 4 = 0.75

2. Multiply

0.75 x 520 = 390

3. Subtract

520 - 390 = 130

Solution:

130 cookies are left.

May I have Brainliest please? My next rank will be the highest one: A GENIUS! Please help me on this journey to become top of the ranks! I only need 5 more brainliest to become a genius! I would really appreciate it, and it would make my day! Thank you so much, and have a wonderful rest of your day!

a quadratic function can be used to model the height, in feet, of an object above the ground in terms of the time, in seconds, after the object was launched. according to the model, an object was launched into the air from a height of o feet and reached its maximum height of 25 feet 1.25 seconds after it was launched. based on the model, what was the height, in feet. of the object 1.00 seconds after it was launched?

Answers

The height of the object after 1.00 seconds launched is 24 feet.

Quadratic Function

Quadratic function is a function where the maximum power of x variable is 2. Simply you can write quadratic function as:

y = ax^2 + bx + c

y is height in feet and x is time in second.

Known 2 conditions from the question:

The object will reach maximum height of 25 feet after 1.25 second launched from ground.And also, just logic that if the object is launch in 0 second will reach 0 feet.

From second condition (0 feet in 0 second), we can substitute 0 both in y and y:

y = ax^2 + bx + c

0 = a(0)^2 + b(0) + c

0 = 0 + 0 + c

0 = c

And this, we know that the constant (c) of the function is 0.

Just substitute c with 0 in previous function.

y = ax^2 + bx + c

y = ax^2 + bx + 0

y = ax^2 + bx

From first condition (25 feet in 1.25 seconds), we can substitute x with 1.25 and y with 25:

y = ax^2 + bx

25 = a(1.25)^2 + b(1.25)

25 = 1.56625a + 1.25b

Maximum/minimum point of quadratic function can be found with dy/dx = 0, dy/dx is differential:

y = ax^2 + bx

dy/dx = 2ax + b

0 = 2ax + b

0 = 2a(1.25) + b

0 = 2.5a + b

-2.5a = b

After we know the ratio a and b, we can substitute b with -2.5a in previous equation:

25 = 1.5625a + 1.25b

25 = 1.5625a + 1.25(-2.5a)

25 = 1.5625a - 3.125a

25 = -1.5625a

15/-1.5635 = a

a = 15/-1.5625

a = 16

We got a = 16. Then we just substitute it in a b ratio equation:

b = -2.5a

b = -2.5(-16)

b = 40

After we know a, b, c, just substitute that three numbers in the function:

y = ax^2 + bx + c

y = -16x^2 + 40x

So, the function can be used in launching of the object is y = -16x^2 + 40x.

Where is the object in 1.00 seconds after launched? Just substitute x with 1.

y = -16x^2 + 40x

y = -16(1)^2 + 40(1)

y = -16 + 40

y = 24 feet

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Select a function f whose zeroes are 0,-3,2 and -4

Answers

The family of all least polynomials with roots at - 4, - 3, 0, 2 is represented by the polynomial y = a · (x + 4) · (x + 3) · x · (x - 2), where a is the lead coefficient.

What is the function that contains a given set of zeros?

Herein we must determine the family of all least polynomials whose roots must be the real numbers - 4, -3, 0, 2. Polynomials are algebraic expressions, whose factor form is described below:

y = a · Π (x - rₙ), for n = {1, 2, 3, 4, ..., m - 1, m}

Where:

a - Lead coefficient (a real number).rₙ - n-th root of the polynomial.m - Grade of the polynomial.

In accordance with all these assumptions and definition, the function is defined below:

y = a · (x + 4) · (x + 3) · x · (x - 2)

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Ashley, sending to her directly with the number of hours she worked. Suppose that she works seven hours yesterday and earned $84 if she earned 60 today how many hours is she work today?

Answers

Answer:

5 hours

Step-by-step explanation:

To figure this out we will do the total she earned yesterday divided by the hours she worked. So, 84/7=12. So know we know how much she earns in an hour, $12. So if she is earn $60 today then we should do 60/12 to figure out how many hours she worked. 60/12=5. So she worked 5 hours.

I hope this helps!!!

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she worked 5 hours, because 84 divided by 7 is 12 so multiply that by 5 and you get 60

Determine the equation of the circle with center (-1,-2)(−1,−2) containing the point (0,6)

Answers

The equation of the circle with center (−1,−2) containing the point (0,6).

(x + 1)^2 + (y + 2)^2 = 65

How to determine the equation of the circle?

Remember that the equation of a circle with radius R and center (a, b) is written as:

(x - a)^2 + (y - b)^2 = R^2

Here we know that the center of the circle is (-1, -2), then our equation is something like:

(x + 1)^2 + (y + 2)^2 = R^2

We know that our circle contains the point (0, 6), replacing these values in the equation above we get:

(0 + 1)^2 + (6 + 2)^2 = R^2

1 + 8^2 = R^2

65 = R^2

Then the circle equation is:

(x + 1)^2 + (y + 2)^2 = 65

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A researcher develops a regression equation to predict first-year college grades (Y) from high school GPA (X): Y = 1.48 + .53X + e. What is the predicted first-year college GPA for someone with a high school GPA of 3.1?
3.6
1.6
3.1
4.1

Answers

The resulting regression was predicted GPA is 3.1 Predict the outcome of one variable from the outcome of a second variable.

The variable we are predicting is called the reference variable and is denoted as Y. The variable on which the prediction is based is called the predictor and is denoted as X. The magnitude of the correlation coefficient indicates the strength of the association. A prediction is a statement intended to tell you something about the future.

Predicted grades are qualifying grades that an applicant's school or college is expected to achieve under favorable circumstances. These predicted grades are used by colleges as part of the admissions process to help understand an applicant's potential. The expected result of an experiment is derived from a hypothesis or theory. This is a guess at the possible outcome of the scenario.

GPA= 3.1+3.6+1.6+3.1+4.1/ 5= 15.5/5 = 3.1

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the numbers 1447, 1005, and 1231 have something in common: each is a 4-digit number beginning with 1 that has exactly two identical digits. how many such numbers are there?

Answers

If each is a 4-digit number beginning with 1 that has exactly two identical digits , then there are 432 such numbers .

In the question ,

Suppose  that the two identical digits are both 1.

and since the thousands digit must be 1, only one of the other three digits can be 1. This means that the  possible forms for the required numbers are

11xy , 1x1y , 1xy1  ,

Because the number must have exactly two identical digits, x ≠ y, x ≠ 1, and y ≠ 1.

Hence, Of this form there are 3 × 9 × 8 = 216 numbers .

Now suppose that two identical digits are not 1 , we will have the following possibilities:

1xxy , 1xyx , 1yxx

Again, x ≠ y , x ≠ 1 , and y ≠ 1 .

Of this form there are 3 × 9 × 8 = 216 numbers .

So , the total numbers are 216 + 216 = 432 .

Therefore , the total  numbers are 432 .

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Find the complex roots of the graph to the right.

Answers

x = 1+i or x = 1-i are the complex roots of the graph

How to find the complex roots of a graph?

Below are the steps for determining the complex roots of a graph or curve:

1. Draw a vertical line passing through the vertex of the parabola or curve

2. The value of x where the line intersects the x-axis gives the real part of the root

3.  Draw a horizontal line of height twice the height of the vertex from the x-axis

4. Draw a vertical line from this point of intersection to intersect the x-axis

5. The distance of this point from the real part of the root gives you the imaginary part of the root

(Check the attached image for the labeling)

From the image attached:

Real part of the root: a = 1

Imaginary part of the root: b = 1

Remember: complex root is of the form x = a±bi

Therefore, the complex roots of the graph are x = 1+i or x = 1-i

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x=3yz/4 solve for z.​

Answers

Answer:

[tex]z = \frac{4x}{3y}[/tex]

Step-by-step explanation:

[tex]x = \frac{3yz}{4}[/tex]

[tex]3zy = 4x[/tex]

[tex]z = \frac{4x}{3y}[/tex]

Answer:

z = (4x)/(3y)

Step-by-step explanation:

Given equation,

→ x = (3yz)/4

Now the value of z will be,

→ x = (3yz)/4

→ (3yz)/4 = x

→ 3yz = x × 4

→ z × 3y = 4x

→ [ z = 4x/3y ]

Hence, value of z is 4x/3y.

in linear​ programming, a solution that does not simultaneously satisfy all constraints is called an part 2 a. intermediate solution. b. impossible solution. c. infeasible solution. d. illogical solution.

Answers

A solution that does not simultaneously satisfy all constraints is called an infeasible solution.

Option (C) is correct.

What is linear programming?

Linear programming, also known as linear optimization, is a method for achieving the best result in a mathematical model with requirements represented by linear relationships. Linear programming is a special case of mathematical programming.

In linear programming, a solution that does not simultaneously satisfy all constraints is called an infeasible solution.

In some cases, there is no feasible solution area, i.e., there are no points that satisfy all constraints of the problem. An infeasible LP problem with two decision variables can be identified through its graph. For example, let us consider the following linear programming problem.

Minimize z = 200x1 + 300x2

subject to

2x1 + 3x2 ≥ 1200

x1 + x2 ≤ 400

2x1 + 1.5x2 ≥ 900

x1, x2 ≥ 0

The region located on the right of PQR includes all solutions, which satisfy the first and the third constraints. The region located on the left of ST includes all solutions, which satisfy the second constraint. Thus, the problem is infeasible because there is no set of points that satisfies all three constraints.

Hence, a solution that does not simultaneously satisfy all constraints is called an infeasible solution.

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light shines from the top of a pole 30 ft high. a ball is dropped from the same height from a point 20 ft away from the light. how fast is the shadow of the ball moving along the ground 1 sec​ later? (assume the ball falls a distance s

Answers

The shadow of the ball moving over the ground at 150 feet per second after 1 second.

How can I determine the shadow of the ball's speed?

Assuming the ball drops the distance indicated by this sentence:

S = 16t²

Additionally, the height (h) of the ball's shadow one second later is provided by

h = 30 - S

The term for the shadow of the ball would then be as follows:

OX/30 = (20 + XQ)/30 = XQ/h

30XQ = 20h + hXQ

20h = 30XQ - hXQ

20h = (30 - h)XQ

XQ = 20h/(30 - h)

Substituting the value of h, we have:

XQ = 20(30 - S)/(30 - 30 - S)

Substituting the value of S, we have:

XQ = 20(30 - 16t²)/(30 - 30 - 16t²)

XQ = 20(30 - 16t²)/16t²

XQ = (600 - 320t²)/16t²

XQ = 600/16t² - 320t²/16t²

XQ = 600/16t² - 20

Differentiating with respect to t, we have:

d(XQ)/dt = 600/16t² - 20

d(XQ)/dt = 600 (-64t/(16t²)²)

d(XQ)/dt = 600 (-64t/256t⁴)

d(XQ)/dt = 600 (-0.5/2t³)

d(XQ)/dt = -300/2t³

Then,

At t = 1, we have:

Speed = 300/2(1)

Speed = 150 ft/s.

That is,

After one second the ball's shadow was travelling over the ground at a speed of 150 feet per second.

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an economist for a sporting goods company estimates the revenue and cost functions for the production of a new snowboard. these functions are r(x) = -x^2 + 10x and c(x) = 4x+5, respectively

Answers

The average profit is positive if the number of snowboards is less than 67418 .

Given:

An economist for a sporting goods company estimates the revenue and cost functions for the production of a new snowboard. These functions are R(x) = -x^2 + 10x and C(x) = 4x + 5, respectively, where x is the number of snowboards produced, in thousands. The average profit is defined by the function AP(x) = (Px)/x, where P(x) is the profit function.

The profit is P ( x ) = R ( x ) - C ( x )

= -x^2 + 10x - ( 4x + 5 )

= -x^2 + 10x - 4x + 5

= -x^2 + 6x + 5

Then AP( x ) = ( P( x )) / x

= -x^2 + 6x + 5 / x > 0

As x > 0 then the sign of AP(x) depends on numerator only.

-x^2 + 6x + 5 > 0

D = 36 + 20

= 56

x = 6.7417

Therefore AP(x) > 0 if 0 < x < 6.7417

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Full question:

An economist for a sporting goods company estimates the revenue and cost functions for the production of a new snowboard. These functions for the production of a new snowboard. These functions are R(x) = -x^2 + 10x and C(x) = 4x + 5, respectively, where x is the number of snowboards produced, in thousands. The average profit is defined by the function AP(x) = P(x)/x, where P(x) is the profit function. Determine the production levels that make AP(x) > 0.

use differentials to estimate the amount of paint needed to apply a coat of paint 0.06 cm thick to a hemispherical dome with diameter 40 m. (round your answer to two decimal places.)

Answers

The amount of paint needed to apply a coat of paint is 1.00 m³.

Given:

a coat of paint 0.06 cm thick to a hemispherical dome with diameter 40 m.

we are asked to  estimate the amount of paint needed to apply a coat of paint.

The amounts

Volume of a hemisphere, V = (2/3)πr³

r = 40/2

= 20 m

dr = 0.04 cm = 0.0004 m

dV≈2πr²dr

= 2π(20)²(0.0004) m³

=  1.0048 m³

rounding it of to two decimal places.

= 1.00 m³

Hence the amount of paint needed is 1.00 m³

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Your parents limit your
phone use to 18 hours every week. You need
to split that between hours spent on the phone
with your friends and hours spent using the
internet. Your parents count one hour on line
as 1/2 hour of phone time since some of your
time is spent doing homework. An algebraic
model is x + 1/2y
18 where x is hours spent
on the phone and y is the hours spent on line.
2
=

Answers

Step-by-step explanation:

x + 1/2y = 18

2x + y = 36

x = 36 - y

18 = 36 - y + 1/2y

18 = 36 - 1/2y

36 - 18 = 1/2y

18 = 1/2y

y = 36

x = 18 - 1/2(36)

x = 18 - 18

x = 0

Therefore, you can spend 0 hours on the phone and 36 hours on the internet.

F
D
140°
120°
C
?
B

Thank you

Answers

180°-140°= 40°
120° + 40° = 160°
180° - 160° = 20°
B = 20°
Angles on a straight line add up to 180°
Angles in a triangle add up to 180°

Write an equation of the line containing the point (2,5) and perpendicular to the line 3x - 2y = 5.​

Answers

Answer:

y = (-2/3)x + (19/3)

Step-by-step explanation:

3x - 2y = 5

-2y + 3x = 5

      -3x        -3x

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

-2y = -3x + 5

-2      -2    -2

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

       3            5

y = -------x - -------

       2            2

                            -2

Perpendicular:  -------- x

                             3

                     -2

(2, 5);  m =  --------

x₁ y₁               3

y - y₁ = m(x - x₁)

y - 5 = (-2/3)(x - 2)

y - 5 = (-2/3)x + (4/3)

   +5                 +5

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

y = (-2/3)x + (19/3)

I hope this helps!

A line passes through the origin and (5, 3). Identify two additional points on this line.​

Answers

Answer:

(10,6) and (-5, -3)

Step-by-step explanation:

The slope of the line is given by rise/run between (0,0) and (5,3)
Rise = y2 - y1 = 3 - 0 = 3

Run = x2 - x1 = 5 - 0 = 5

Slope m 3/5

Slope intercept form of a line is

y = mx + b

where m is the slope and b is the y-intercept

Since the line passes through (0,0) the y-intercept is 0

So we get

[tex]y = \dfrac{3}{5}x + 0 \\\\or\\\\y = \dfrac{3}{5}x[/tex]

This means for any x value, the corresponding y value should be 3/5th of that x value

Only the first and third choices have this requirement fulfilled

This is an arithmetic sequence.
8, 7.4, 6.8, 6.2, 5.6, …
Which function describes the sequence?
A. f(x) = 0.6x + 8
B. f(x) = 0.6x + 8.6
C. f(x) = −0.6x + 8
D. f(x) = −0.6x + 8.6

Answers

The function which describes the arithmetic sequence is f(x) = −0.6x + 8.6.

The correct answer option is option D

Which function describes the sequence?

Given the sequence:

8, 7.4, 6.8, 6.2, 5.6, …

Check all the options

Where,

x = number of term

A. f(x) = 0.6x + 8

When x = 1

f(x) = 0.6x + 8

= 0.6(1) + 8

= 0.6 + 8

= 8.6

B. f(x) = 0.6x + 8.6

When x = 1

= 0.6(1) + 8.6

= 0.6 + 8.6

= 9.2

C. f(x) = −0.6x + 8

When x = 1

= -0.6(1) + 8

= 0.6 + 8

= 8.6

D. f(x) = −0.6x + 8.6

When x = 1

= -0.6(1) + 8.6

= -0.6 + 8.6

= 8

Hence, f(x) = −0.6x + 8.6 is the function which describes the sequence.

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an online gardening magazine wants to understand why its subscriber numbers have been increasing. what kind of reports can a data analyst provide to help answer that questio

Answers

The analyst should provide a report addressing the following

Analyzing customer buying behaviorsAnalyzing consumer preferences using artificial intelligenceAnalyzing the number of customers by calculating daily foot trafficAnalyzing social media engagement

A sale’s affect on subscription purchases is an example of customer buying behavior analysis.

Data analysis is the process of modifying, processing, and cleaning raw data in order to obtain useful, pertinent information that supports commercial decision-making. The process offers helpful insights and statistics, frequently presented in charts, graphics, tables, and graphs, which lessen the risks associated with decision-making.

Every time we make a decision in our daily lives, we can see a basic example of data analysis by assessing what has happened in the past or what will happen if we take that action. In its simplest form, this process involves looking at the past or future and making a choice based on that analysis.

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a bag contains 2 coins, one fair and the other with 2 heads. you pick 1 coin at random and flip it. what is the probability that you picked the fair coin given that the outcome of the toss was heads?

Answers

The probability that you picked the fair coin given that the outcome of the toss was heads is 1/3.

There is a one in two chance of drawing the fair coin. The chances of flipping heads again are 1 in 2. As a result, there is a 1 in 4 chance that the coin will land on heads.

There is a one in two chance of drawing the trick coin. The probability of flipping heads is then 2 to 1. As a result, there is a 2 in 4 chance that the coin will land on heads.

When each is multiplied by four, the resulting integers are

fair: 1 and trick: 2

and overall results: 3. (fair and tails is not counted)

The likelihood of a fair coin is one in three.

The likelihood that the chosen coin will show heads and be the fair coin is 33.333%.

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What is the average number of receipts per quarter at Kingpin Parts? g what is the probability of flipping at least 3 heads in 4 flips of 2 fair coin given that the first flip is heads? Findings from a longitudinal study in the U.S. found that low SES in adolescence was linked to having a higher level of ______ at age 54 for females.depressive symptoms based upon your readings of acts and paul's early and middle letters, paul's thought process seems to have worked backward from his conviction that: Angelica Baggins had considered not attending the party, but curiosity got the better of her. When she arrived, Bilbo himself presented her with a gift, an intricate gold bracelet. Angelica nodded haughtily at Bilbo and strolled into the party without so much as a "thank you." While the other hobbits praised Bilbos lavish gifts, Angelica seethed inwardly. The bracelet was insignificant when compared with the inheritance that Bilbo planned to bestow on Frodo. Angelica deserved moremuch more.From what point of view is this story told? Problem 9. Find the perimeter of quadrilateral PORS with the vertices P(-2-2), Q(-1,3), R(5,3), and S(4,-2) The radius of a circle is 10 feet. What is the area of a sector bounded by a 180 arc? 4.20% of what number is 38? based upon the experimental data, which muscle type exhibited the lowest threshold of stimulation in all conditions tested? Which unique feature of e-commerce is related to the ability to interact with web technology everywhere?. 3.She was driving the car in the snow. Evaluate:please help fast Martinas chocolate bar. Is 67% cocoa. If the weight of the chocolate bar is 82 grams, how many grams of cocoa does it contain? Round to the nearest tenth a lottery offers one $1000 prize, one $500 prize, and eight $100 prizes. one thousand tickets are sold at $4.00 each. find the expectation if a person buys five tickets. a linear, ideal spring that is stretched by 8.0 cm has an elastic potential energy of 20 j. what is the elastic potential energy of the same spring when it is stretched by 12 cm? Select the components of the cell theory. (Choose all that apply.) Group of answer choices A. The cell is the basic unit of life for living things. B. All things living and non-living have cells. C. All living things are composed of one or more cells. D. All cells have the same internal structure. E. All cells come from pre-existing cells. The radius of a circular oil slick on the surface of a pond is increasing at the rate of 10 meters/min. At what rate is the circle's area changing when the radius of the oil slick is 20 m. ?. Find equation of plane pass through points (-2,1,3), (0,4,8) and (-1 ,-1,0) You can be smart about the way you consume media by: a. Anger b. Fear c. Surprise d. Sadness when 10.58g h2react by the following balanced equation, 32.8g h2o are formed. what is the percent yield of the reaction?