What are 3 examples inequality?

Answers

Answer 1
Not fairness treated differently being separated from others by other’s opinions

Related Questions

8.46 rounded to the nearest integer

Answers

Answer: 8

Step-by-step explanation:

i have a photo can someone solve it

i have a photo can someone solve it

Answers

A is incorrect, cosine is opp/hyp which would make cosA= 16/20

The figure below shows a circle with center N, diameter FM, and tangents GA and FW. Which of the angles must be right angles? Select all that apply.
A) B) C) D) E) F)

Answers

The angles that must be right angles in the given figure are <FPT and <GWF.

In the given figure, we have a circle with center N and diameter FM. The tangents to the circle are GA and FW.

First, let's consider angle <FPT. Since GA is tangent to the circle, it is perpendicular to the radius drawn from the center N to the point of tangency, which is point F. Therefore, <FPT must be a right angle.

Next, let's consider angle <GWF. Since FW is tangent to the circle, it is also perpendicular to the radius drawn from the center N to the point of tangency, which is point F. Hence, <GWF must also be a right angle.

Angles <TFS, <NGW, <FNG, and <NFW are not guaranteed to be right angles based on the given information. Although the figure suggests that <FNG might be a right angle due to the right triangle formed by the diameter FM and the tangent GA, it is not necessarily always true, as the figure could be drawn in a way that makes <FNG non-right.

Learn more about circle here:

https://brainly.com/question/12930236

#SPJ11

Complete question:

The figure below shows a circle with center N, diameter FM, and tangents GA and FW. Which of the angles must be right angles? Select all that apply.

A) <TFS

B) <NGW

C) <FPT

D) <FNG

E) <NFW

F) <GWF

The figure below shows a circle with center N, diameter FM, and tangents GA and FW. Which of the angles

a boat can travel 294 miles in 24.5 hours (with a constant speed). How much time will it take traveling 339.6 miles?

Answers

Mph can also be said as mile/hour so in this question 294 miles / 24.5 hours equals the constant speed of 12 MPH. Then take 339.6 Miles divided by your speed of 12MPH you’ll get ANSWER: 28.3 Hours

To find the inverse of f(x) = 2x - 1, Patel begins by replacing f(x) with y. He
then switches x and y. What is the next step?
O A. Solve the equation for y.
O B. Solve the equation for x.
C. Subtract 1 from both sides of the equation.
D. Replace y with f1(x).

Answers

Answer:A

Step-by-step explanation:

The inverse of the function is y = (x +1) /2, the next step is to solve the equation for y, the correct option is A.

What is a Function?

A function is a law that relates two variables namely, a dependent and an independent variable.

A function always has a defined range and domain, domain is all the value a function can have as an input and range is all the value that a function can have.

The function is f(x) = 2x -1

The inverse of a function is determined by interchanging the variables x and y and then solving for y in terms of x.

Patel replaced f(x) by y, y = 2x -1

He then switched  x and y, x = 2y -1

The next step is to solve the equation for y.

2y = x +1

y = (x +1) /2

To know more about Function

https://brainly.com/question/12431044

#SPJ5

I need help with my Pre-Calculus HW - a graph is shown and it says I need to "state whether the function is one-to one.

I need help with my Pre-Calculus HW - a graph is shown and it says I need to "state whether the function

Answers

Okay, here we have this:

Considering that a function is one-to-one if and only if no horizontal line intersects its graph more than once.

So, according with this we any horizontal line that is drawn on the line touches only one point on it, therefore the function is one to one.

Andrew wants to ride the Ultramonster roller coaster. He observes the sign at the entrance that says riders must be at least forty-three inches tall to ride the roller coaster. Since Andrew was at the doctor's office yesterday he remembers they said he wasthree and a third feet tall. Is he tall enough to ride the Ultramonster?

Answers

Answer:

No

Step-by-step explanation: he is 3 and 1/3 feet tall. 3 feet is 36inch and 1/3 feet is 4 inches, so 36+4 is 40 inches

Inide a park of length 400m and breath 300m there i an area of walking track 4 m wide built all around. What i the area left for children for playing

Answers

The area left for children for playing 114464 sq. m

As per the given data inside a park:

The length of the park is 400 m

The breadth of the park is 300 m

The formula for the area of the park = Length × Breadth

= (400 × 300) sq. m

= 120000 sq. m

The width of the walking track inside the park is 4 m

The length of the park without the walking track

= 400 − (4 + 4) m

= 400 − 8 m

= 392 m

The breadth of the park without the walking track

= 300 − (4 + 2) m

= 300 − 8 m

=292 m

Area of the park without the walking track:

= 392 × 292

= 114464 sq. m

Therefore the area left for children for playing other than the walking track is 114464 sq. m.

For more questions on the area

https://brainly.com/question/17677554

#SPJ4


find the value of x?

find the value of x?

Answers

Answer:

135

Step-by-step explanation:

Hello There!

Remember the exterior angle of a triangle rule:

An exterior angle of a triangle is equal to the sum of its opposite interior angles

so x = the sum of its opposite interior angles (58 and 77)

58 + 77=135

so x = 135

Answer: x=135°

Step-by-step explanation:

Angles in a triangle always add up to 180° so to find the corner of the missing side next to x you need to do 58+77=135 then do 180-135=45°

So then, now we have the angle inside the triangle, we can now work out what x is.

Angles on a straight line always add up to 180° so you do 180-45=135° so x=135°.

Hope this helps :)

Please anybody help

Please anybody help

Answers

Answer:

-4 just kidding it is 3

Step-by-step explanation:

Which ordered pairs are in the solution set of 8x + 16y > 32? (select two ordered pairs).

Answers

The ordered pair which is solution of 8x+16y > 32 is (-3,5) , the correct option is (b) .

In the question ,

it is given that ,

the linear inequality is 8x+16y > 32 .

to find the solution set ,

we substitute the options that are given

Option(a)

Substituting (0,2) in 8x+16y > 32 ,

we get ,

8(0) + 16(2) > 32

32 > 32 ,

false , hence it is not a solution .

Option(b)

Substituting (-3,5) in 8x+16y > 32 ,

we get ,

8(-3) + 16(5) > 32

-24 + 80 > 32

56 > 32

true , yes it is the solution .

Option(c)

Substituting (-1,1) in 8x+16y > 32 ,

we get ,

8(-1) + 16(1) > 32

-8 + 16 > 32

8 > 32

False , hence it is not a solution .

Option(d)

Substituting (4,0) in 8x+16y > 32 ,

we get ,

8(4) + 16(0) > 32

32 + 0 > 32

32 > 32

False , hence it is not a solution .

The only solution that satisfy the inequality is (-3,5) .

Therefore  , The ordered pair which is solution of 8x+16y > 32 is (-3,5) .

The given question is incomplete , the complete question is

Which ordered pair is in the solution set of 8x+16y > 32 ?

(a) (0,2)

(b) (-3,5)

(c) (-1,1)

(d) (4,0)

Learn more about Solution here

https://brainly.com/question/25636512

#SPJ4

Are the vectors : [5 -4 -1], 5= [1 -1 -5] and w [5 -2 5] linearly independent? If they are linearly dependent, find scalars that are not all zero such that the equation below is true. If they are linearly independent, find the only scalars that will make the equation below true. ū+ v+ w = 0.

Answers

The vectors [5 -4 -1], [1 -1 -5], and [5 -2 5] are linearly independent. There are no scalars other than 0 that will satisfy the equation ū + v + w = 0.

To determine whether the given vectors are linearly independent, we need to check if there exists a nontrivial linear combination of the vectors that equals the zero vector.

Let's assume that there exist scalars a, b, and c such that a[5 -4 -1] + b[1 -1 -5] + c[5 -2 5] = 0.

Expanding this equation, we get (5a + b + 5c) + (-4a - b - 2c) + (-a - 5b + 5c) = 0.

To satisfy this equation, all the coefficients of the vectors must be zero. Equating the coefficients to zero, we have the following system of equations:

5a + b + 5c = 0,

-4a - b - 2c = 0,

-a - 5b + 5c = 0.

Solving this system of equations, we find that a = 0, b = 0, and c = 0. This means that the only scalars that satisfy the equation ū + v + w = 0 are all zero, indicating that the vectors are linearly independent.

Learn more about coefficients here:

https://brainly.com/question/1594145

#SPJ11

Which function is represented by the graph?​

Which function is represented by the graph?

Answers

Answer:

Step-by-step explanation:

An absolute value function has the standard form

where h and k are the coordinates of the vertex (the pointy part of the graph) and the absolute value of a indicates whether or not the graph is the same width as the parent graph or if it is steeper or flatter. If the absolute value of a is greater than 1, the graph is steeper; if the absolute value of a is greater than 0 but less than 1 (in other words a fraction less than 1), the graph is flatter than the parent. If the graph is upside down, there will be a negative out in front of the absolute value of a. Because our graph is in fact upside down, we will choose one of the options that has a negative in front of it. The fact that it has moved UP from the origin, but not side to side, means that the k value is a +1.

If you are familiar with an absolute value parent graph, the lines go through each diagonal of the grid perfectly. It appears that our graph is steeper (or slimmer) than that. That means that not only is our graph upside down, it also has an a value greater than 1. Putting those 2 facts to use along with our k value of +1, makes our obvious choice the first one listed.

A ratio can be written in three different forms
what are the three forms?

Answers

the first way is _ to _
the second way is _/_
the third way is _:_
the underscores are where the numbers are supposed to go

Describe the error in finding the measure of one exterior angle of a regular polygon.

Answers

The error in finding the measure of one exterior angle of a regular polygon lies in using the formula 360°/n, where n is the number of sides of the polygon.

The formula 360°/n is used to find the measure of each exterior angle of a regular polygon. It is based on the idea that the sum of all exterior angles of any polygon is always 360 degrees. However, this formula assumes that the polygon has internal angles of 180°, which is true only for regular polygons.

The error occurs when this formula is applied to a non-regular polygon, as non-regular polygons have varying internal angles. Using the formula 360°/n for a non-regular polygon will give incorrect results because the internal angles are not all equal.

For regular polygons, each exterior angle is indeed 360°/n, and the sum of all exterior angles will be 360 degrees. However, for non-regular polygons, this formula cannot be used, and the measures of exterior angles must be calculated differently based on their internal angles and sides.

To know more about regular polygon, refer here:

https://brainly.com/question/29722724#

#SPJ11

The error in finding the measure of one exterior angle of a regular polygon is they divided 360 by 10 instead of 5.

Given that,

There are a total of 10 exterior angles, two at each vertex, so the measure of one exterior angle is 360°/10 = 36°.

Here, at each vertex there are two angles.

So, there must be 5 vertices and 5 sides.

Then, the measure of one exterior angle = 360°/5

= 72°

Therefore, the error in finding the measure of one exterior angle of a regular polygon is they divided 360 by 10 instead of 5.

Learn more about the sum of exterior angles of polygon here:

https://brainly.com/question/1983075.

#SPJ4

"Your question is incomplete, probably the complete question/missing part is:"

Describe and correct the error in finding the measure of one exterior angle of a regular polygon. There are a total of 10 exterior angles, two at each vertex, so the measure of one exterior angle is 360°/10 = 36°.

Expand & simplify:
3 (C-7)+2(3c+4)​

Answers

Answer: 3 (C-7)+2(3c+4)​

Step-by-step explanation: Given

3(c - 7) + 2(3c + 4) ← distribute both parenthesis

= 3c - 21 + 6c + 8 ← collect like terms

= 9c - 13

(-4,19) and (8,-2) whats the slope intercept

Answers

Answer:

slope = -7/4

Step-by-step explanation:

Plug the points into this formula: \(\frac{y2 - y1}{x2 - x1}\)

Plug in

\(\frac{-2 - 19}{8 - (-4)} \\\\\frac{-21}{12} = -7/4\)

The simplest form is -7/4

Hope this helps ya! Keep smiling!

Department


Reported Gains and Losses


Cereal Department


10% increase


Fresh Produce Division


15% decrease


Frozen Foods


gain


Beverage Division


loss


Meat Division


1.25 gain


If Ms. Post ranks the departments according to their profitability, how would she list the departments in order from least value to greatest?

Answers

According to the department's profitability, Ms. Post would list the departments in order from least value to greatest as follows:Cereal Department - 10% increase (Gain)Meat Division - 1.25 gain

The Cereal Department has a 10% increase (gain). That implies that it had a positive value and that it experienced a revenue gain.The Meat Division has a 1.25 gain (gain). That implies that it had a positive value and that it experienced a revenue gain.The Frozen Foods Division had a gain. That means that it experienced a revenue gain. We do not know the percentage of gain that it had.

The Fresh Produce Division had a 15% decrease (loss). That implies that it had a negative value and that it experienced a revenue loss.The Beverage Division had a loss. That means that it experienced a revenue loss. We do not know the percentage of loss that it had.To sum up, the departments in order from least value to greatest, based on their profitability, are as follows: Cereal Department, Meat Division, Frozen Foods Division, and Beverage Division.

To know more about value visit:

https://brainly.com/question/10416781

#SPJ11

What is the greatest common factor of 30, 45, and 90?

Answers

Answer:

15

The factors of 30 are: 1, 2, 3, 5, 6, 10, 15, 30

The factors of 45 are: 1, 3, 5, 9, 15, 45

The factors of 90 are: 1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90

Then the greatest common factor is 15.

Which of the following describes the symmetry of this conic section?

Which of the following describes the symmetry of this conic section?

Answers

Answer:

x=1

Step-by-step explanation:

It will be x=1 because once it is at x=1, the parobola is split into 2 EQUAL parts. For example, if you graph this on paper and try to guess the middle and place a line where you want to split it, the line will go at x=1

Thank you :)

Which of the following describes the symmetry of this conic section?

Mr. Kinders has contributed $200.00 at the end of each month into an RRSP paying 3% per annum compounded quarterly.
How much will Mr. Kinders have in the RRSP after 20 years?
$____
(Round the final answer to the nearest cent as needed. Round all intermediate values to six decimal places as needed)
How much of the above amount is interest?
$_____
(Round the final answer to the nearest cent as needed. Round ail intermediate values to six decimal places as needed)

Answers

Mr. Kinders will have $83,858.77 in the RRSP after 20 years. The interest earned over this period will amount to $43,858.77.

To calculate the future value of Mr. Kinders' RRSP, we can use the formula for compound interest:

Future Value (FV) = P * (1 + r/n)^(nt)

Where:

P = Monthly contribution = $200.00

r = Annual interest rate = 3% = 0.03 (expressed as a decimal)

n = Number of compounding periods per year = 4 (quarterly compounding)

t = Number of years = 20

Substituting these values into the formula, we can calculate the future value:

FV = $200 * (1 + 0.03/4)^(4*20)

FV ≈ $83,858.77

Therefore, Mr. Kinders will have approximately $83,858.77 in the RRSP after 20 years.

To calculate the amount of interest earned, we can subtract the total contributions made from the future value:

Interest = FV - Total Contributions

The total contributions can be calculated by multiplying the monthly contribution by the number of months (20 years * 12 months/year = 240 months):

Total Contributions = $200 * 240

Total Contributions = $48,000

Substituting the values into the formula, we can calculate the interest:

Interest = $83,858.77 - $48,000

Interest ≈ $35,858.77

Therefore, the amount of interest earned in the RRSP over 20 years is approximately $43,858.77.

After 20 years of contributing $200 per month to his RRSP, compounded quarterly at an interest rate of 3% per annum, Mr. Kinders will have approximately $83,858.77 in his RRSP.

The interest earned during this period will amount to approximately $43,858.77. Compound interest calculations allow individuals to estimate the growth of their investments over time and make informed financial decisions.

To know more about interest, visit;
https://brainly.com/question/25720319
#SPJ11

Polygon WXYZ has vertices W(4, 2), X(6, 4), Y(2, 3), and Z(4, 5). If W′X′Y′Z′ is a dilation of WXYZ with center of dilation (0, 0) and vertex coordinates W′(2, 1), X′(3, 2), Y′(1, 1.5), and Z′(2, 2.5), find the scale factor.

Answers

Answer:

the scale factor is 2 ..................

what divided by 25 = 4.8?

Answers

Answer:

120/25 = 4.8

Step-by-step explanation:

To set up the equation you would do this-

\(\frac{4.8}{1} =\frac{x}{25} \\\)

Then cross multiply (multiply 4.8 by 25 and x by 1)

\(4.8(25) = x(1)\\120 = x\)

The length of a rectangle is 7inches more than 4 times the width. The perimeter is 74 inches. Find the length and the width.The length is ? inches and the width is ? inches.

Answers

L = lenght = 4w + 7

W = width

Perimeter = 2L + 2W

74 = 2 (4W + 7 ) + 2 W

74 = 8W + 14 + 2 W

74 = 10W + 14

74-14 = 10W

60 = 10W

60/10 = W

6 = W

L = 4W + 7

L= 4(6) +7

L= 24+7

L= 31

Answer:

Lenght = 31 inches

Width = 6 inches

Answer:

6

Step-by-step explanation:

The picture says everything, ty

The picture says everything, ty

Answers

Answer:

I believe the answer is D

Step-by-step explanation:

plz help answer will mark brainiest

plz help answer will mark brainiest

Answers

Answer:

4/3 litres of water is enough to water 2/5 of the plants

Assuming the number of plants in the house is an unknown variable, take the value as x.

Thus, 4/3 litres is enough to water 2x plants in the house.

x = 4/3 ÷ 2

  = 2/3 litres

Amount of water for all the plants = 5x = 5 × 2/3

                                                                = 10/3 litres

Thus, 10/3 litres of water is necessary to water all the plants in the house.

is (12, 3, 12, 4, 19) a 5-permutation? why or why not?

Answers

No, (12, 3, 12, 4, 19) is not a 5-permutation.

A permutation is a sequence of numbers or objects in which the order matters. In order for a sequence to be a valid permutation, each element must be unique and must not repeat. In the sequence (12, 3, 12, 4, 19), 12 is repeated, so it is not a valid permutation.

A permutation can also be thought of as an arrangement of objects in which the order of the objects matters. In a 5-permutation, there would be 5 unique objects arranged in a specific order.

Since (12, 3, 12, 4, 19) contains a repeated number, it does not represent a valid 5-permutation. In order for it to be a valid 5-permutation, each number in the sequence must be unique.

To know more about permutation click on below link:

https://brainly.com/question/30649574#

#SPJ11

The line AB passes through the points A(2, -1) and (6, k). The gradient of AB is 5. Work out the value of k.​

Answers

Answer:

Step-by-step explanation:

gradient = 5 = [k-(-1)]/[6-2]

[k+1]/4 = 5

k+1=20

k=19

Final answer:

The value of k in the line that passes through the points A(2, -1) and (6, k) with a gradient of 5 is found to be 19 by using the formula for gradient and solving the resulting equation for k.

Explanation:

To find the value of k in the line that passes through the points A(2, -1) and (6, k) with a gradient of 5, we'll use the formula for gradient, which is (y2 - y1) / (x2 - x1).

The given points can be substituted into the formula as follows: The gradient (m) is 5. The point A(2, -1) will be x1 and y1, and point B(6, k) will be x2 and y2. Now, we set up the formula as follows: 5 = (k - (-1)) / (6 - 2).

By simplifying, the equation becomes 5 = (k + 1) / 4. To find the value of k, we just need to solve this equation for k, which is done by multiplying both sides of the equation by 4 (to get rid of the denominator on the right side) and then subtracting 1 from both sides to isolate k. So, the equation becomes: k = 5 * 4 - 1. After carrying out the multiplication and subtraction, we find that k = 20 - 1 = 19.

Learn more about Line Gradient here:

https://brainly.com/question/30249498

#SPJ2

question 7 options: in the game of roulette, there is a wheel with spaces marked 0 through 36 and a space marked 00. find the probability of winning if you pick the number 30 and it comes up on the wheel.

Answers

The probability of winning by picking the number 30 in roulette is 1/38.

In the game of roulette, the wheel consists of 38 spaces, with numbers 0 through 36 and an additional space marked 00. When you pick a specific number, such as 30, the probability of that number coming up on the wheel can be determined by calculating the ratio of favorable outcomes to the total number of possible outcomes.

In this case, there is only one favorable outcome, which is the ball landing on the number 30. The total number of possible outcomes is 38 since there are 37 numbered spaces (0 through 36) and one additional space for 00. Therefore, the probability of winning by picking the number 30 is 1 out of 38.

To put it simply, if you were to play roulette many times, you would expect the number 30 to come up approximately once every 38 spins on average. This probability remains the same for each individual spin, as each spin of the roulette wheel is an independent event.

Learn more about probability

brainly.com/question/31828911

#SPJ11.

If the mpc increases in value, what will happen to the slope of the consumption function?

Answers

If the mpc increases in value, the consumption function will become steeper.

What is MPC ?

MPC is an advanced method of process control that is used to control a process while satisfying a set of constraints. In economics, the marginal propensity to consume is a metric that quantifies induced consumption, the concept that the increase in personal consumer spending occurs with an increase in disposable income. The proportion of disposable income which individuals spend on consumption is known as propensity to consume. MPC is the proportion of additional income that an individual consumes.

To learn more about MPC, visit:

https://brainly.com/question/14486062

#SPJ4

Other Questions
Which statement correctly compares the centers of the distributions?Penguin Heights at Park Zoo(in cm)Penguin Heights at Countyside Zoo(in cm)35 36 37 38 39 40 41 42 43 44 45O35 36 37 38 39 40 41 42 43 44 45 1.In chickens, BB calls for a black chicken. WW calls for a white chicken. The BW combination calls forthe blue Andalusian chicken. Cross a blue hen with a blue rooster.GenotypesPhenotypes The seven states that ceded from the United States and elected Jefferson Davis as their president were known as theA. Union States of AmericaB. Confederate States of AmericaC. Totalitarian NationD. Federal Republic of the SouthPlease select the best answer from the choices provided D suppose that 17 boys and 22 girls are randomly lined up. what is the probability that the 27th person is a boy? whats 3 2/5 divided by 3 1/6? SessionExit Ticketwhat kind of a conclusion can you make about how the circulatory system, respiratorysystem, digestive system, nervous system, skeletal system, and muscular system worktogether? If a particular neutral atom (not an ion) has an atomic number of 19 and an atomic mass of 34, then provide the numbers below (no text, just the number) for:The number of protons:The number of electrons:The number of valence electrons:The number of neutrons: how many digits are used in quinary number system If the table coordinates for triangle XYZ and it's images using two transformations use 1 grid on both axes to represent 1 unit for the interval from -3 to 9 a person with poorly controlled diabetes mellitus will develop: A capacitor is connected to a battery until it has charge Q. It is then disconnected from the battery, maintaining its charge. A dielectric material is introduced between the plates. Which of the following is true?A) The capacitance and the charge increase.B) The charge increases and the potential difference increases.C) The capacitance, charge, and potential difference increase.D) The capacitance increases and the potential difference decreases.E) The capacitance is constant and the potential difference decreases. For the FCF (Feature Control Frame) in Bubble 20 on the PlateDemo drawing, which datum feature would have 2points of contact with its TGC? ___________________________________________ When a flu virus enters the body, the immune system creates antibodies made of polypeptide chains to fight the virus. The specific shape of the protein allows it to bind to the virus and deactivate it. How does the antibodys primary protein structure create the specific shape to bind to flu viruses? A) The sequence of amino acids determines where hydrogen bonds form between segments of the polypeptide backbone. The hydrogen bonds and interactions between the side chains give the antibody its shape. B) The sequence of amino acids determines where hydrogen bonds form between the amino acids side chains. The peptide bonds and interactions between the side chains give the antibody its shape. C) The antibodys primary structure consists of hydrogen bonds formed between segments of the polypeptide backbone. These determine how the amino acids side chains will interact, which gives the antibody its shape. D) The antibodys primary structure consists of disulfide bridges that twist and bend the polypeptide chain and give the antibody its shape. The antibodys shape allows it to bind to a protein from the virus. The area of a rectangular room is 750 square feet. The width of the room is 5 feet less than the length of the room. Which equations can be used to solve for y, the length of the room? Select three options. y(y + 5) = 750 y2 5y = 750 750 y(y 5) = 0 y(y 5) + 750 = 0 (y + 25)(y 30) = 0 In a reflection the orientation of a figure changes. (The direction of the shape changes.)TRUE OR FALSE define absolute price 1.What is the approximate depth of the canyon that the Dolores River flows through? Measure the difference in elevation between the river and the top of Tenderfoot Mesa at the top of the map. Think back to an earlier exercise (contour lines). Un distribuidor debe repartir 879 botellas de cerveza entre 3 bares. Si el pedido del bar A es la mitad que el del bar B y la cuarta parte del bar C. Cuntas botellas le tocan a cada bar? Bonds are considered to offer a garenteed return, as they must be honored by law, but which is still a potential risk that investors face? Mike wants to find the confidence interval for a set of data. he knows the sample size and the sample proportion. which other piece of information does he need to determine the confidence interval?