In a population where 81 % of voters prefer Candidate A,
an organization conducts a poll of 15 voters. Find the
probability that 11 of the 15 voters will prefer Candidate

Answers

Answer 1

The probability of 11 voters out of 15 voting candidate A is 0.9770

According to the statement

we have given that the percentage of voters is 81% and poll conducts are 15 and we have to find the probability that 11 of the 15 voters will prefer Candidate

So, For this purpose,  

the question in based on binomial probability which means the probability of exactly x successes on n repeated trials in an experiment which has two possible outcomes p and q and p+q=1

let probability of choosing candidate A be p

and probability of choosing candidate B be q

In question p=0.81 and q=0.16

n be total number of voters=15

x be number of successes

then P(x=x)= [tex]\frac{n}{x} p^{x} q^{n-x}[/tex]

P(x=11)= [tex]\frac{11}{15} 0.81^{11} 0.16^{4}[/tex]

= 0.9770

So, the probability of 11 voters out of 15 voting candidate A is 0.9770

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Related Questions

Find the area and the circumference of a circle with radius .
Use the value 3.14 for , and do not round your answers. Be sure to include the correct units in your answers.

Answers

The area of the circle is 78.5 square yards and the circumference of the circle is 31.4  yards

How to determine the area?

The radius of the circle is given as:

r = 5 yard

The area is calculated using

A = pi r^2

Substitute the known values in the above equation

A =3.14 * 5^2

Evaluate the exponent

A =3.14 * 25

Evaluate the product

A =78.5

Hence, the area of the circle is 78.5 square yards

How to determine the circumference?

The radius of the circle is given as:

r = 5 yard

The circumference is calculated using

C = 2pi r

Substitute the known values in the above equation

C =2 * 3.14 * 5

Evaluate the product

C = 31.4

Hence, the circumference of the circle is 31.4  yards

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30% of 70 is what percent of 2000?

Answers

Answer:

1.05

Step-by-step explanation:

Because 30% of 70 is [tex]30\% \times 70 = \frac{30}{100} \times 70 = 0.3 \times 70 = 21[/tex], so the question becomes "21 is what percent of 2000?"

To answer this, we can solve for [tex]x[/tex] in the equation [tex]21 = x\% \times 2000[/tex], which is:

[tex]21 = x\% \times 2000\\21 = \frac{x}{100} \times 2000\\21 = 20x\\x=\frac{21}{20}=1.05[/tex]

So the answer is 1.05 percent.

find dy/dx when y =
[tex] \sqrt{(1 + cosx)/( 1 - cosx)} [/tex]

Answers

Answer:

cos(x)

Step-by-step explanation:

(1 + cos(x))(1 - cos(x)) = 1 - cos²(x) = sin²(x)

sqrt(sin²(x)) = sin(x)

sin'(x) = cos(x)

Form a polynomial

Degree: 4

Zeros: -1, 2, & 1-2i

Answers

Answer:

(x+1)(x-2)(x-1)(x-1+2¡) multiply all together

Step-by-step explanation:

(x+1)(x-2)(x-1)(x-1+2¡)

multiply all together u have your answer

Alice placed $1,900 in a savings account which earns 2.2% interest, compounded every year. How much will she have in the account after 5 years.

Answers

She will have $2118 in her account after five years

How to determine the amount in five years?

The given parameters about the compound interest are

Principal Amount, P = $1,900

Interest Rate, R = 2.2%

Time, t = 5

Compound interests are different from simple interest, and they are calculated using the following compound interest formula

CI = P(1 + R)^t - P

To calculate the amount, we have:

A = P + CI

So, the equation becomes

A = P + P(1 + R)^t - P

Evaluate the like terms

A = P(1 + R)^t

Substitute the known values in the above equation

A = 1900 * (1 + 2.2%)^5

Express 2.2% as decimal

A = 1900 * (1 + 0.022)^5

Evaluate the sum

A = 1900 * (1.022)^5

Evaluate the exponent

A = 1900 * 1.11495

Evaluate the product

A = 2118

Hence, she will have $2118 in her account after five years

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need heeeelp please ​

Answers

Step-by-step explanation:

y = -f(x)

so, everything is mirrored around the x-axis.

what was below the x-axis, is now above the x-axis, what was above is now below. and what was on the x-axis, is still on the x-axis.

pick the corner points of f(x), their x-values stay the same, their y-values flip the sign. the points on the x-axis (y = 0) stay the same of course.

and then connect the points, so that the curve is upside-down to the original.

A lawn-mowing company is trying to grow its business. It had 30 clients when they started its business and wants to increase by 6 new clients each week. Use an
arithmetic sequence to write a function to represent this real-world situation and determine the range of the function for the first four weeks of data.
Of(x)=6x +30,0 ≤ y ≤4
Of(x)=6x+24; 0 < y < 4
Of(x)=6x +30, 30 ≤ y ≤ 48
Of(x)=6x+24; 30 ≤ y ≤ 48

Answers

Answer:

Step-by-step explanation:

Option C.

Step-by-step explanation:

Initial number of clients = 18

Number of Increase per week = 4

We need to use an arithmetic sequence to write a function.

So, the required arithmetic sequence for four weeks is

18, 22, 26, 30

Here, first term is 18 and common difference is 4. The range is  [18,30].

The explicit formula of n arithmetic sequence is

where, a is first term and d is common difference.

Substitute a=18 and d=4 in the above formula.

The function notation is

The function is f(x)=4x+14 and the range is  18 ≤ y ≤ 30.

Therefore, the correct option is C.

Fill in the blank with the correct response.

Twenty-one is 20% of

Answers

Answer: 105

Step-by-step explanation:

105 * .2 = 21 :)

Find the nth term of the arithmetic sequence -1, 2, 5,.. ..

Answers

Answer:

8

Step-by-step explanation:

i think it's 8 but I'm not sure i will check it for you

The composite figure is made up of a parallelogram and a rectangle. Find the
area.

A. 88 sq. units
B. 64 sq. units
C. 24 sq. units
D. 120 sq. units

Answers

Answer:

A

Step-by-step explanation:

The parallelogram is the length times the height.  The height is 8 and the length is 12 - 2 - 2 or 8.

8x8 = 64

The small rectangle is 12 x 2 or 24

64 + 24 = 88

Part 2 - Find the error(s) and solve the problem correctly.
Convert the polar equation to rectangular form and identify the graph. Support your answer by sketching the graph. Show and explain your work.
r = − 4 cos θ
Answer:
Cosine graph reflected over x-axis with amplitude 4

Answers

Comparing A and B we find the value of the variables as

x = radius

Centre (-2,0)

Radius 2

The sketch of the image is attached below

What is sketching the graph?

Generally, the equation for is mathematically given as

x = -4 cos -(i)

Multiply -(i) both sides by & we

x^2= -4xcos\theta

We know that and

x= x cos\theta

y = rsino

x² + y² = x² (cos²∅ + sin²∅).

x² + y² = x² ....sin² ∅ + cos 2∅=1

so, putting rates in (ii) we get

x²+y² = -4x

x²+4²  +4 + y²=4

(2 + 2)² + y² =4

The rectangular form of

x = -4cos∅  is (x + 2)² + y² = 4 ---- A

We can see that A is a graph of circles. The general equation of a circle is

= (x-h)² + (y)² = x² ----B

where (h, k) = centre

Comparing A and B we find

x = radiusCentre (-2,0)Radius 2

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The total mass of Faizal, John and Raju is 154.2 kg. John is 10.48 kg
heavier than Raju and 9.23 kg heavier than Faizal. Find Raju's mass.

Answers

Answer:

R = 47.49 kg

Step-by-step explanation:

To find answer, I will put things in terms of Raju's mass

J =  R + 10.48

J - 9.23  = F       or   R + 10.48   - 9.23   = F  

F                              +                 J                +   R = 154.2

(R + 10.48- 9.23)      +     (R+10.48 )            +   R  = 154.2    

3R = 142.47

R=47.49 kg

see attachment for question

Answers

The percentages for each outcome are given as follows:

a) 34.4%.

b) 29.4%.

What is a percentage?

The percentage of an amount a over a total amount b is given by a multiplied by 100% and divided by b, that is:

P = a/b x 100%

For this problem, we already have the percentages, hence we just combine them.

For item a, he can be late in two ways, one that happens 24.4% of the time(waking up late), and the other 10%(stuck in traffic), hence the percentage is of 34.4%, as 24.4% + 10% = 34.4%.

For item b, the percentage stuck in traffic is of 5%, hence the percentage that he will be late is 24.4% + 5% = 29.4%.

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Find the length of mAB using the figure below
(please see photo)

Answers

Answer:

5

Explanation:

Look at the number line and count the number of increments needed to get from point A to B.

5 (units) is the answer

Step-by-step explanation:

-2 is point A

3 is point B

Find the absolute value then add

|-2| + |3| = 5

There's our answer, 5! Or the second choice

WILL GIVE BRAINLIEST
3. Add or subtract the following terms:

a. (10x) + (22x) =

b. (-6x) - (-6x) =

c. (-13t) + (14x) - (+13t) =

d. (-4t) + (+4t) - (-3t) =

Answers

The simplified forms of the given expressions are

a. 32x

b. 0

c. -26t + 14x

d. 3t

Simplifying an expression

From the question, we are to simplify the given expressions by adding or subtracting

a. (10x) + (22x)

= 32x

b. (-6x) - (-6x)

= -6x + 6x

= 0

c. (-13t) + (14x) - (+13t)

= -13t + 14x - 13t

Collect like terms

= -13t -13t + 14x

= -26t + 14x

d. (-4t) + (+4t) - (-3t)

= -4t + 4t + 3t

= 3t

Hence, the simplified forms of the given expressions are

a. 32x

b. 0

c. -26t + 14x

d. 3t

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What is the slope of a line that is parallel to y=5x+3

Answers

The slope of a line that is parallel to y=5x+3 is 5x.

Two lines must have the same slope to be parallel to each other.

The length of line segment AG is 17 m and the line segment AD is 25 m. What is the length of line segment GD?​

Answers

Answer:

AG = 17 m

AD = 25 m

GD = ?

AD = AG + GD

GD = AD - AG

= 25 - 17

= 8 m

the answer to your question is 8m

Application
I
3. Ray has a stride of about 1.4 m. He runs 9 km daily to train for a marathon. Approximately
how many strides does he need to run 9 km?

Answers

He needs to run with approximately 6429 for a distance of 9 km

How to determine the number of strides?

The given parameters are:

Length of stride = 1.4 m

Distance for marathon = 9 km

The number of strides needed is then calculated as:

Number of stride = Distance for marathon/Length of stride

Substitute the known values in the above equation

Number of stride = 9km/1.4m

Convert km to m

Number of stride = 9000m/1.4m

Evaluate the quotient

Number of stride = 6428.57143

Approximate the estimate

Number of stride = 6429

Hence, he needs to run with approximately 6429 for a distance of 9 km

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f(x)=cos(2x) and state the amplitude and period. Enter exact answers

Answers

The amplitude of function f(x)=cos(2x) is 1 and the period is 2.

Given that the function of x is f(x)=cos(2x).

We are required to find the value of amplitude and period of function f(x) which is given in the question.

Amplitude basically refers to maximum displacement from the equilibrium that an object in periodic motion show. It is a product analytics platform or term that helps businesses to track visitors with the help of collaborative analytics.

Period is basically the time interval between two waves. A function  that repeats its values at regular intervals or periods is known as periodic function.

The amplitude of f(x)=cos(2x) is 1 because the highest value that cos Θ can give 1. We can also see in graph that the value of cos 2x is going to 1 and starts decreasing again.

The period of f(x) is 2. From the graph we can say that the vertical distance between upper point and lower point is 2.

Hence the amplitude of function f(x)=cos(2x) is 1 and the period is 2.

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which line segment has the same measure as TQ

Answers

The line segment that has the same measure as TQ is TR

How to determine the line segment that has the same measure as TQ?

The figure that completes the question is added as an attachment

From the figure, we have the following properties:

Lines TQ and TR are congruentLines QS and RS are congruent

The above implies that the line segment that has the same measure as TQ is TR

Hence,  the line segment that has the same measure as TQ is TR

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Answer:

It's TR

Step-by-step explanation:

did it on edgenuidy

ZAP is a right triangle, with right angle A and sin P = 3/5 What is cos Z?

Answers

The ratio of cos Z is cos Z = 3 / 5

How to find the trigonometric ratios of a right triangle?

A right triangle has one angle of the triangle as 90 degrees.

The sides of the right triangle can be found using trigonometric ratios.

Therefore,

sin ∅ = opposite / hypotenuse

sin Z = 3 / 5

Using Pythagoras theorem,

c² = a² + b²

5² - 3² = b²

b² = 25  - 9

b² = 16

b = √16

b = 4

Hence,

P + A = 90 degrees (complementary angles)

Therefore,

sin P = cos Z

cos Z = 3 / 5

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Which expression represents the
number of reams of paper the company
produced during the second year?

Answers

The expression that represents the number of reams of paper the company produced during the second year is 4.704 × 10¹⁰. The correct option is D. 4.704 × 10¹⁰

Writing an Expression

From the question, we are to determine the expression that represents the number of reams of paper the company produced during the second year

From the given information,

During the first year of operation,

The company produced 8.4 × 10⁹ reams of paper

And

During the second year,

the company produced 5.6 times the number of reams of paper that it produced during the first year.

Thus,

The number of reams of paper the company produced during the second year = 5.6 × 8.4 × 10⁹ reams of paper

The number of reams of paper the company produced during the second year = 47.04 × 10⁹ reams of paper

= 4.704 × 10¹ × 10⁹ reams of paper

= 4.704 × 10¹⁰ reams of paper

Hence, the expression that represents the number of reams of paper the company produced during the second year is 4.704 × 10¹⁰. The correct option is D. 4.704 × 10¹⁰

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Copy the problem, mark the givens in the diagram and write a statement/reason proof

Answers

Answer:

Step-by-step explanation:

<E = <T                                Given

M is the midpoint of TE      Given

TM = ME                               Definition of a  midpoint

<TMI = <RME                        Property of Vertically Opposite Angles

ΔTMI = ΔRME                       ASA = ASA

MI = ME                                 Corresponding parts of Congruent triangles                                    are Congruent

answer:                              reasoning:

<E = <T                                given

M is the midpoint of TE      given

TM = ME                               definition of a  midpoint

<TMI = <RME                        property of Vertically Opposite Angles

ΔTMI = ΔRME                       ASA = ASA

MI = ME                                 corresponding parts of congruent triangles                                    are Congruent

hope this helps!

Show all work to write the expression in simplified radical form:
(Assume all variables are positive)
[tex]\sqrt[3]{192x^{5}y^{8}}[/tex]
(Cube root of 192 x to the fifth power y to the eighth power)

Answers

Answer:

[tex]\sqrt[3]{192} x^{\frac{3}{5} }y^{\frac{3}{8} }[/tex]

Step-by-step explanation:

You have to simplify all of the terms individually

[tex]\sqrt[3]{192} = 5.769[/tex]

Since that isn't a whole number, it doesn't simplify

Use the root to exponent rule for the variables

[tex]\sqrt[3]{x^{5} } =x^{\frac{3}{5} }[/tex]

[tex]\sqrt[3]{y^{8} } =y^{\frac{3}{8} }[/tex]

Then put them all together to get

[tex]\sqrt[3]{192} x^{\frac{3}{5} }y^{\frac{3}{8} }[/tex]

Make sure the variables aren't under the root when you give your answer

I hope this helps!

pls mark brainliest

A cannonball is shot straight upward with a velocity of 80 ft/sec. Its height after t seconds is given by f (t) = 80t - 16 t to the second power. Round your answers to 1 decimal place if necessary.

How high will the cannon ball go?
How many seconds will it take to reach this maximum height?

Answers

Check the picture below, so the ball's path is pretty much like so, and it reaches its hightest at its vertex, so

[tex]~~~~~~\textit{initial velocity in feet} \\\\ h(t) = -16t^2+v_ot+h_o \quad \begin{cases} v_o=\textit{initial velocity}&80\\ \qquad \textit{of the object}\\ h_o=\textit{initial height}&0\\ \qquad \textit{of the object}\\ h=\textit{object's height}&h\\ \qquad \textit{at "t" seconds} \end{cases} \\\\\\ f(t)=80t-16t^2\implies f(t)=-16t^2+80t+0 \\\\[-0.35em] ~\dotfill[/tex]

[tex]\textit{vertex of a vertical parabola, using coefficients} \\\\ y=\stackrel{\stackrel{a}{\downarrow }}{-16}x^2\stackrel{\stackrel{b}{\downarrow }}{+80}x\stackrel{\stackrel{c}{\downarrow }}{+0} \qquad \qquad \left(-\cfrac{ b}{2 a}~~~~ ,~~~~ c-\cfrac{ b^2}{4 a}\right)[/tex]

[tex]\left(-\cfrac{ 80}{2(-16)}~~~~ ,~~~~ 0-\cfrac{ (80)^2}{4(-16)}\right) \implies \left( - \cfrac{ 80 }{ -32 }~~,~~0 - \cfrac{ 6400 }{ -64 } \right) \\\\\\ \left( \cfrac{5}{2}~~,~~100 \right)\implies \underset{~\hfill feet ~~ }{\stackrel{seconds\qquad }{\left( 2\frac{1}{2}~~,~~100 \right)}}[/tex]

what is the answer for this question? i really need it

Answers

Answer:

a = 3

b = -9

c = -3

d = 22

e = 49 - 9

f = a^2 -3

Step-by-step explanation:

Please no more questions :(

finish this whole thing and ill give you five stars thanks and brainliest

Which statement is true?


The value of 8,590 − 4,586 is half the value of 2 x (8,590 − 4,586).

The value of 2,674 x 5,480 + 5 is 5 times the value of 2,674 + 5,480.

The value of 6,432 x (1,860 − 6) is 6 less than the value of 6,432 x 1,860.

The value of 2,876 x (9,280 + 8) is 8 more than the value of 2,876 x 9,280.

Answers

The value of 8,590 − 4,586 is half the value of 2 x (8,590 − 4,586).

What is an equation?

An equation is an expression that shows the relationship between two or more numbers and variables. The basic operations performed on an equation are addition, subtraction, multiplication and division.

The value of 8,590 − 4,586 = 4004

Half the value of 2 x (8,590 − 4,586) = (1/2) of 2 x (8,590 − 4,586) = 4004

The value of 8,590 − 4,586 is half the value of 2 x (8,590 − 4,586).

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Show Work Please Thank You

Answers

Answer:

[tex]\displaystyle{x = \dfrac{\pi}{12}, \dfrac{\pi}{6}}[/tex]

Step-by-step explanation:

We are given the trigonometric equation of:

[tex]\displaystyle{\sin 4x = \dfrac{\sqrt{3}}{2}}[/tex]

Let u = 4x then:

[tex]\displaystyle{\sin u = \dfrac{\sqrt{3}}{2}}\\\\\displaystyle{\arcsin (\sin u) = \arcsin \left(\dfrac{\sqrt{3}}{2}\right)}\\\\\displaystyle{u= \arcsin \left(\dfrac{\sqrt{3}}{2}\right)}[/tex]

Find a measurement that makes sin(u) = √3/2 true within [0, π) which are u = 60° (π/3) and u = 120° (2π/3).

[tex]\displaystyle{u = \dfrac{\pi}{3}, \dfrac{2\pi}{3}}[/tex]

Convert u-term back to 4x:

[tex]\displaystyle{4x = \dfrac{\pi}{3}, \dfrac{2\pi}{3}}[/tex]

Divide both sides by 4:

[tex]\displaystyle{x = \dfrac{\pi}{12}, \dfrac{\pi}{6}}[/tex]

The interval is given to be 0 ≤ 4x < π therefore the new interval is 0 ≤ x < π/4 and these solutions are valid since they are still in the interval.

Therefore:

[tex]\displaystyle{x = \dfrac{\pi}{12}, \dfrac{\pi}{6}}[/tex]

Find the slope of the line passing through the points (-4,-4) and (2, 5).

Answers

Answer:

the slope of the line passing through the points (-4,-4) and (2, 5) m=3/2.

Step-by-step explanation:

Hello!

To find the slope between two points use the formula

m=(y-y)/(x-x)... substitute valuesm=(5-(-4))/(2-(-4))m=9/6m=3/2

The volume of this regular pentagonal pyramid is 82.5 cubic meters. What is the height of the pyramid?

Answers

the height of the pentagonal pyramid is 5. 70 meters

Volume of a regular pentagonal pyramid

The formula for determining the volume of a regular pentagonal pyramid is given as;

V=5/12tan(54°)ha^2

Where

a is the base edgeh is the height

We have the volume to be;

volume = 82. 5 cubic centers

height = h

a = 5m

Substitute the values

[tex]82. 5 = \frac{5}{12}[/tex] × [tex]tan 54[/tex] × [tex]h[/tex] ×[tex]5^2[/tex]

[tex]82. 5 = 0. 42[/tex] × [tex]1. 3764[/tex] × [tex]25[/tex] × [tex]h[/tex]

Make 'h' subject of formula

[tex]h = \frac{82. 5}{14. 45}[/tex]

h = 5. 70 meters

The height of the pentagonal pyramid is 5. 70 meters

Thus, the height of the pentagonal pyramid is 5. 70 meters

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