In a sourball game, a fizzy is worth 2 points and a X is worth 5 points. K and W recently played for the sourball game. During the game, K scored eight more fizzles than the W, but scored 5 fewer Y than the W. Together the two teams scored 93 pints total. What was the final score?

Answers

Answer 1

Using mathematical operations of addition, multiplication, division, and subtraction, the final score was:

K = 42 pointsW = 51 points.

What are mathematical operations?

The basic mathematical operations for getting mathematical results from numbers, values, and variables include addition, multiplication, division, and subtraction.

In this situation, we apply these four basic mathematical operations.

Fizzy = 2 points

X = 5 points

Total scores = 93 points

The points in 8 Fizzys = 16 points (8 x 2)

The points in 5 Xs = 25 points (5 x 5)

The equation showing the total scores of K = total scores + 16 - 25

= (93 + 16 - 25)/2

= 42 points

The equation showing the total scores of W = total scores - 16 + 25

= (93 - 16 + 25)/2

= 51 points

Final scores are K = 42 and W = 51.

Thus, applying mathematical operations, the final score shows that K scored 42 points while W scored 51 points, totaling 93 points for the two teams.

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Related Questions

(0,1), (2,4), (4,7) (9.1)}Domain:Range:

Answers

The domain of an ordered pair are its first elements and its range are all the second elements of the ordered pair.

So, the domain ={0,2,4,9}

Range={1,4,7,1}

3 2 — · — = _____ 8 5 2 9· — = _____ 3 7 8 — · — = _____ 8 7 x — · y = _____ y a b —— · — = _____ 2b c m n2 —- · —— = _____ 3n mGive the product in simplest form: 1 2 · 2— = _____ 2Give the product in simplest form: 1 2 — · 3 = _____ 4 Give the product in simplest form: 1 1 1— · 1— = _____ 2 2 Give the product in simplest form: 1 2 3— · 2— = _____ 4 3

Answers

Given:

[tex]\frac{3}{8}\cdot\frac{2}{5}[/tex]

Required:

We need to multiply the given rational numbers.

Explanation:

Cancel out the common terms.

[tex]\frac{3}{8}\cdot\frac{2}{5}=\frac{3}{4}\cdot\frac{1}{5}[/tex][tex]Use\text{ }\frac{a}{b}\cdot\frac{c}{d}=\frac{a\cdot c}{b\cdot d}.[/tex][tex]\frac{3}{8}\cdot\frac{2}{5}=\frac{3}{20}[/tex]

Consider the number.

[tex]\frac{7}{8}\cdot\frac{8}{7}=\frac{1}{1}\cdot\frac{1}{1}[/tex]

Cancel out the common multiples

[tex]9\cdot\frac{2}{3}[/tex][tex]9\cdot\frac{2}{3}=3\cdot2=6[/tex]

Consider the number

[tex]\frac{7}{8}\cdot\frac{8}{7}[/tex]

Cancel out the common multiples.

[tex]\frac{7}{8}\cdot\frac{8}{7}=\frac{1}{1}\cdot\frac{1}{1}[/tex][tex]\frac{7}{8}\cdot\frac{8}{7}=1[/tex]

Consider the number

[tex]\frac{x}{y}\cdot y=x[/tex][tex]\frac{a}{2b}\cdot\frac{b}{c}=\frac{a}{2}\cdot\frac{1}{c}=\frac{a}{2c}[/tex][tex]\frac{m}{3n}\cdot\frac{n^2}{m}=\frac{1}{3}\cdot\frac{n}{m}=\frac{n}{3m}[/tex]

Final answer:

[tex]\frac{3}{8}\cdot\frac{2}{5}=\frac{3}{20}[/tex][tex]9\cdot\frac{2}{3}=6[/tex][tex]\frac{7}{8}\cdot\frac{8}{7}=1[/tex][tex]\frac{x}{y}\cdot y=x[/tex]

[tex]\frac{a}{2b}\cdot\frac{b}{c}=\frac{a}{2c}[/tex][tex]\frac{m}{3n}\cdot\frac{n^2}{m}=\frac{n}{3m}[/tex]

Write the sequence {15, 31, 47, 63...} as a function A. A(n) = 16(n-1)B. A(n) = 15 + 16nC. A(n) = 15 + 16(n-1)D. 16n

Answers

To find the answer, we need to prove for every sequence as:

Answer A.

If n=1 then:

A(1) = 16(1-1) = 16*0 = 0

Since 0 is not in the sequence so, this is not the answer

Answer B.

If n=1 then:

A(1) = 15 + 16*1 = 31

Since 31 is not the first number of the sequence, this is not the answer

Answer D.

If n=1 then:

16n = 16*1 = 16

Since 16 is not in the sequence so, this is not the answer

Answer C.

If n = 1 then:

A(1) = 15 + 16(1-1) = 15

A(2) = 15 + 16(2-1) = 31

A(3) = 15 + 16(3-1) = 47

A(4) = 15 + 16(4-1) = 63

So, the answer is C

Answer: C. A(n) = 15 + 16(n-1)

An outdoor equipment store surveyed 300 customers about their favorite outdoor activities. The circle graph below shows that 135 customers like fishing best, 75 customers like camping best, and 90 customers like hiking best.

Answers

it is given that,

total customer surveyed is 300 customers

also, it is given that,

135 customers like fishing best, 75 customers like camping best, and 90 customers like hiking best.​

the total 300 customers representing the whole circle and circle has a complete angle of 360 degrees

so, 300 customers = 360 degrees,

1 customer = 360/300

= 6/5 degrees,

so, for fishing

135 customer = 135 x 6/5 degrees

= 27 x 6

= 162 degrees,

so, for camping

75 x 6/5 = 90 degrees,

for hiking

90 x 6/5 = 108 degrees,

Macky Pangan invested ₱2,500 at the end of every 3-month period for 5 years, at 8% interest compounded quarterly. How much is Macky’s investment worth after 5 years?

Answers

Compound interest with addition formula:

[tex]A=P(1+\frac{r}{n})^{nt}+\frac{PMT(1+\frac{r}{n})^{nt}-1}{\frac{r}{n}}[/tex]

where,

A = final amount

P = initial principal balance

r = interest rate

n = number of times interest applied per time period

t = number of time periods elapsed

PMT = Regular contributions (additional money added to investment)

in this example

P = 2500

r = 8% = 0.08

n = 4

t = 5 years

PMT = 2500

[tex]A=2500(1+\frac{0.08}{4})^{4\cdot5}+\frac{2500\cdot(1+\frac{0.08}{4})^{4\cdot5}-1}{\frac{0.08}{4}}[/tex]

solving for A:

[tex]A=189408.29[/tex]

Therefore, his investment after 5 years will be

$189,408.29

Let f(x) = 8x^3 - 3x^2Then f(x) has a relative minimum atx=

Answers

[tex]\begin{gathered} \mathrm{Minimum}(\frac{1}{4},\: -\frac{1}{16}) \\ \mathrm{Maximum}(0,\: 0) \\ Inflection\: Point\colon(\frac{1}{8},-\frac{1}{32}) \end{gathered}[/tex]

1) To find the relative maxima of a function, we need to perform the first derivative test. It tells us whether the function has a local maximum, minimum r neither.

[tex]\begin{gathered} f^{\prime}(x)=\frac{d}{dx}\mleft(8x^3-3x^2\mright) \\ f^{\prime}(x)=\frac{d}{dx}\mleft(8x^3\mright)-\frac{d}{dx}\mleft(3x^2\mright) \\ f^{\prime}(x)=24x^2-6x \end{gathered}[/tex]

2) Let's find the points equating the first derivative to zero and solving it for x:

[tex]\begin{gathered} 24x^2-6x=0 \\ x_{}=\frac{-\left(-6\right)\pm\:6}{2\cdot\:24},\Rightarrow x_1=\frac{1}{4},x_2=0 \\ f^{\prime}(x)>0 \\ 24x^2-6x>0 \\ \frac{24x^2}{6}-\frac{6x}{6}>\frac{0}{6} \\ 4x^2-x>0 \\ x\mleft(4x-1\mright)>0 \\ x<0\quad \mathrm{or}\quad \: x>\frac{1}{4} \\ f^{\prime}(x)<0 \\ 24x^2-6x<0 \\ 4x^2-x<0 \\ x\mleft(4x-1\mright)<0 \\ 0Now, we can write out the intervals, and combine them with the domain of this function since it is a polynomial one that has no discontinuities:[tex]\mathrm{Increasing}\colon-\infty\: 3) Finally, we need to plug the x-values we've just found into the original function to get their corresponding y-values:[tex]\begin{gathered} f(x)=8x^3-3x^2 \\ f(0)=8(0)^3-3(0)^2 \\ f(0)=0 \\ \mathrm{Maximum}\mleft(0,0\mright) \\ x=\frac{1}{4} \\ f(\frac{1}{4})=8\mleft(\frac{1}{4}\mright)^3-3\mleft(\frac{1}{4}\mright)^2 \\ \mathrm{Minimum}\mleft(\frac{1}{4},-\frac{1}{16}\mright) \end{gathered}[/tex]

4) Finally, for the inflection points. We need to perform the 2nd derivative test:

[tex]\begin{gathered} f^{\doubleprime}(x)=\frac{d^2}{dx^2}\mleft(8x^3-3x^2\mright) \\ f\: ^{\prime\prime}\mleft(x\mright)=\frac{d}{dx}\mleft(24x^2-6x\mright) \\ f\: ^{\prime\prime}(x)=48x-6 \\ 48x-6=0 \\ 48x=6 \\ x=\frac{6}{48}=\frac{1}{8} \end{gathered}[/tex]

Now, let's plug this x value into the original function to get the y-corresponding value:

[tex]\begin{gathered} f(x)=8x^3-3x^2 \\ f(\frac{1}{8})=8(\frac{1}{8})^3-3(\frac{1}{8})^2 \\ f(\frac{1}{8})=-\frac{1}{32} \\ Inflection\: Point\colon(\frac{1}{8},-\frac{1}{32}) \end{gathered}[/tex]

Khalil has 2 1/2 hours to finish 3 assignments if he divides his time evenly , how many hours can he give to each

Answers

In order to determine the time Khalil can give to each assignment, just divide the total time 2 1/2 between 3 as follow:

Write the mixed number as a fraction:

[tex]2\frac{1}{2}=\frac{4+1}{2}=\frac{5}{2}[/tex]

Next, divide the previous result by 3:

[tex]\frac{\frac{5}{2}}{\frac{3}{1}}=\frac{5\cdot1}{2\cdot3}=\frac{5}{6}[/tex]

Hence, the time Khalil can give to each assignment is 5/6 of an hour.

Put the following equation of a line into slope-intercept form, simplifying all fractions. 3x+9y=63

Answers

Answer: y = 63x - 180

Step-by-step explanation: y = mx + b ------(i)

Step one: y = 9, x = 3

9 = 63 (3) + b

9 = 189 + b

-180 = b

b = -180 

y = 63x - 180

Answer is
y = -1/3x-6

State all integer values of X in the interval that satisfy the following inequality.

Answers

Solve the inequality

-5x - 5 < 8

for all integer values of x in the interval [-4,2]

We solve the inequality

Adding 5:

-5x - 5 +5 < 8 +5

Operating:

-5x < 13

We need to divide by -5, but we must be careful to flip the inequality sign. It must be done when multiplying or dividing by negative values

Dividing by -5 and flipping the sign:

x > -13 / 5

Or, equivalently:

x > -2.6

I am here, I'm correcting the answer. the interval was [-4,2] I misread the question. do you read me now?

Any number greater than -2.6 will solve the inequality, but we must use only those integers in the interval [-4,2]

Those possible integers are -4, -3, -2, -1, 0, 1, 2

The integers that are greater than -2.6 are

-2, -1, 0, 1, 2

This is the answer.

Hello! Is it possible to get help on this question?

Answers

To determine the graph that corresponds to the given inequality, first, let's write the inequality for y:

[tex]2x\le5y-3[/tex]

Add 3 to both sides of the expression

[tex]\begin{gathered} 2x+3\le5y-3+3 \\ 2x+3\le5y \end{gathered}[/tex]

Divide both sides by 5

[tex]\begin{gathered} \frac{2}{5}x+\frac{3}{5}\le\frac{5}{5}y \\ \frac{2}{5}x+\frac{3}{5}\le y \end{gathered}[/tex]

The inequality is for the values of y greater than or equal to 2/5x+3/5, which means that in the graph the shaded area will be above the line determined by the equation.

Determine two points of the line to graph it:

-The y-intercept is (0,3/5)

- Use x=5 to determine a second point

[tex]\begin{gathered} \frac{2}{5}x+\frac{3}{5}\le y \\ \frac{2}{5}\cdot5+\frac{3}{5}\le y \\ 2+\frac{3}{5}\le y \\ \frac{13}{5}\le y \end{gathered}[/tex]

The second point is (5,13/5)

Plot both points to graph the line. Then shade the area above the line.

The graph that corresponds to the given inequality is the second one.

the hypotenuse of a right triangle is 5 ft long. the shorter leg is 1 ft shorter than the longer leg. find the side lengths of the triangle

Answers

the hypotenuse of the right angle triangle is h = 5 ft

it is given that

the shorter leg is 1 ft shorter than the longer leg.

let the shorter leg is a and longer leg is b

the

b - a = 1

b = 1 + a

in the traingle using Pythagoras theorem,

[tex]a^2+b^2=h^2[/tex]

put he values,

[tex]a^2+(1+a)^2=5^2[/tex][tex]\begin{gathered} a^2+1+a^2+2a=25 \\ 2a^2+2a-24=0 \\ a^2+a-12=0 \end{gathered}[/tex][tex]\begin{gathered} a^2+4a-3a-12=0_{} \\ a(a+4)-3(a+4)=0 \\ (a+4)(a-3)=0 \end{gathered}[/tex]

a + 4 = 0

a = - 4

and

a - 3 = 0

a = 3

so, the longer leg is b = a + 1 = 3 + 1 = 4

thus, the answer is

shorter leg = 3 ft

longer length = 4 ft

hypotenuse = 5 ft

Write a division equation that represents the equation, How many 3/4 are in 10/9?

Answers

Given:

The number of 3/4 in 10/9.

To find the division equation that represents the given problem:

That is a number that is multiplied by 3/4 to obtain 10/9.

We need to find the number.

[tex]x\times\frac{3}{4}=\frac{10}{9}[/tex]

Thus, the division equation will be,

[tex]x=\frac{10}{9}\div\frac{3}{4}[/tex]

Translate the triangle.Then enter the new coordinates.A (3,4)C(-5,0)<4,2>B(-12)A' ([?], [])B'([ ], [ ])C'([ ], [])

Answers

Given:

The coordinates of the triangle are A(-3,4), B(-1,2), and C(-5,0).

Required:

We need to translate the given triangle to <4,2> 4 units right and 2 units up.

Explanation:

The image of the point can be written as follows.

[tex](x,y)\rightarrow(x+4,y+2)[/tex]

Consider point A(-3,4).

[tex]A(-3,4)\rightarrow A^{\prime}(-3+4,4+2)[/tex][tex]A(-3,4)\rightarrow A^{\prime}(1,6)[/tex]

Consider point B(-1,2).

[tex]B(-1,2)\rightarrow B^{\prime}(-1+4,2+2)[/tex][tex]B(-1,2)\rightarrow B^{\prime}(3,4)[/tex]

Consider point C(-5,0).

[tex]C(-5,0)\rightarrow C^{\prime}(-5+4,0+2)[/tex][tex]C(-5,0)\rightarrow C^{\prime}(-1,2)[/tex]

Final answer:

A'(1, 6), B'(3, 4) and C'(-1, 2).

What is the standard form of the complex number that point A represents?

Answers

Answer

-3 + 4i

Explanation

The standard form for a complex number is given by:

[tex]\begin{gathered} Z=a+bi \\ \text{Where:} \\ a\text{ is the real part,} \\ b\text{ is the imaginary part} \end{gathered}[/tex]

From the graph, the coordinates of A corresponding to the real axis and imaginary axis is traced in blue color in the graph below:

Hence, the standard form of the complex number that a represents is: -3 + 4i

1. How much less is the area of a rectangular field 60 by 20
meters than that of a square field with the same perimeter?

Answers

The area of the rectangular field is 400m² less than the area of the square field.

How to find the area of a rectangle and square?

A rectangle is a quadrilateral that has opposite sides equal to each other. Opposite side are also parallel to each other.

A square is a quadrilateral that has all sides equal to each other.

Therefore,

area of the rectangular field = lw

where

l = lengthw = width

Therefore,

area of the rectangular field = 60 × 20

area of the rectangular field = 1200 m²

The square field have the same perimeter with the rectangular field.

Hence,

perimeter of the rectangular field = 2(60 + 20)

perimeter of the rectangular field =  2(80)

perimeter of the rectangular field = 160 meters

Therefore,

perimeter of the square field = 4l

160 = 4l

l = 160 / 4

l = 40

Hence,

area of the square field  = 40²

area of the square field  = 1600 m²

Difference in area = 1600 - 1200

Difference in area = 400 m²

Therefore, the area of the square field is 400 metre square greater than the rectangular field.

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Janelle is conducting an experiment to determine whether a new medication is effective in reducing sneezing. She finds 1,000 volunteers with sneezing issues and divides them into two groups. The control group does not receive any medication; the treatment group receives the medication. The patients in the treatment group show reduced signs of sneezing. What can Janelle conclude from this experiment?

Answers

Answer:

Step-by-step explanation:

A study is done on the number of bacteria cells in a petri dish. Suppose that the population size P(1) after t hours is given by the following exponential function.P (1) = 2000(1.09)Find the initial population size.Does the function represent growth or decay?By what percent does the population size change each hour?

Answers

Given:

the population size P(1) after t hours is given by the following exponential function:

[tex]P(1)=2000(1.09)[/tex]

Find the initial population size?

The initial size = 2000

Does the function represent growth or decay?

Growth, Because the initial value multiplied by a factor > 1

By what percent does the population size change each hour?

The factor of change = 1.09 - 1 = 0.09

So, the bacteria is increasing by a factor of 9% each hour

Okay so I’m doing this assignment and got stuck ont his question can someone help me out please

Answers

ANSWER

[tex]B.\text{ }\frac{256}{3}[/tex]

EXPLANATION

We want to find the value of the function for F(4):

[tex]F(x)=\frac{1}{3}*4^x[/tex]

To do this, substitute the value of x for 4 in the function and simplify:

[tex]\begin{gathered} F(4)=\frac{1}{3}*4^4 \\ F(4)=\frac{1}{3}*256 \\ F(4)=\frac{256}{3} \end{gathered}[/tex]

Therefore, the answer is option B.

Elisa purchased a concert ticket on a website. The original price of the ticket was $95. She used a coupon code to receive a 10% discount. The website applied a 10% service fee to the discounted price. Elisa's ticket was less than the original by what percent?

Answers

The price of the ticket after the cupon is:

[tex]95\cdot0.9=85.5[/tex]

To this price we have to add 10%, then:

[tex]85.5\cdot1.1=94.05[/tex]

Hence the final cost of the ticket is $94.05.

To find out how less is this from the orginal price we use the rule of three:

[tex]\begin{gathered} 95\rightarrow100 \\ 94.05\rightarrow x \end{gathered}[/tex]

then this represents:

[tex]x=\frac{94.05\cdot100}{95}=99[/tex]

Therefore, Elisas's ticket was 1% less than the orginal price.

2x^3-16x^2-40x=0 factor

Answers

The given expression is

[tex]2x^3-16x^2-40x=0[/tex]

We extract the common factor 2x.

[tex]\begin{gathered} 2x(x^2-8x-20)=0 \\ 2x=0\rightarrow x=0 \\ x^2-8x-20=0 \end{gathered}[/tex]

The first solution is 0.

Now, we solve the quadratic expression. We have to find two numbers whose product 20 and whose difference is 8. Those numbers are 10 and 2.

[tex]x^2-8x-20=(x-10)(x+2)[/tex]Hence, the given expressions expressed, as factors, is[tex]2x^3-16x^2-40x=x(x-10)(x+2)[/tex]

3. Identify the solution to the system of equations by graphing:(2x+3y=12y=1/3 x+1)

Answers

Given equations are

[tex]2x+3y=12[/tex][tex]y=\frac{1}{3}x+1[/tex]

The graph of the equations is

Red line represents the equation 2x=3y=12 and the blue line represents the equation y=1/3 x=1.

Andre and Elena are each saving money, Andre starts with 100 dollars in his savings account and adds 5 dollars per week, Elena starts with 10 dollars in her savings account and adds 20 dollars each week.After 4 weeks who has more money in their savings account?? Explain how you know.After how many weeks will Elena and Andre have the same amount of money in their savings account? How do you know?

Answers

We can model each savings account balance in function of time as a linear function.

Andre starts with $100 and he adds $5 per week. If t is the number of weeks, we can write this as:

[tex]A(t)=100+5\cdot t[/tex]

In the same way, as Elena starts with $10 and saves $20 each week, we can write her balance as:

[tex]E(t)=10+20\cdot t[/tex]

We can evaluate their savings after 4 weeks (t=4) as:

[tex]\begin{gathered} A(4)=100+5\cdot4=100+20=120 \\ E(4)=10+20\cdot4=10+80=90 \end{gathered}[/tex]

After 4 weeks, Andre will have $120 and Elena will have $90.

We can calculate at which week their savings will be the same by writing A(t)=E(t) and calculating for t:

[tex]\begin{gathered} A(t)=E(t) \\ 100+5t=10+20t \\ 5t-20t=10-100 \\ -15t=-90 \\ t=\frac{-90}{-15} \\ t=6 \end{gathered}[/tex]

In 6 weeks, their savings will be the same. We know it beca

What is the value of 12x if x = −5?
−60 −17 −125 −47

Answers

Answer:

-60

Step-by-step explanation:

A length of 48 ft. gave Malama an area
of 96 sq. ft. What other length would
give her the same area (96 sq. ft.)?
4

Answers

I would say the answer is either 48 or 2. Whatever is on the multiple choice

My explanation:


Easy explanation ⬇️

Given length: 48ft

Total area is 96sq. ft

48 + 48 = 96


Second explanation:

Formula to find missing length ⬇️

Area = length x width

96 sq. ft = 48ft x w

96 sq. ft = 48ft x 2



(2 x 48 = 96)



So 2 (probably 48) should be your answer!

Function f is defined by f(x) = 2x – 7 and g is defined by g(x) = 5*

Answers

Answer

f(3) = -1, f(2) = -3, f(1) = -5, f(0) = -7, f(-1) = -9

g(3) = 125, g(2) = 25, g(1) = 5, g(0) = 1, g(-1) = 0.2

Step-by-step explanation:

Given the following functions

f(x) =2x - 7

g(x) = 5^x

find f(3), f(2), f(1), f(0), and f(-1)

for the first function

f(x) = 2x - 7

f(3) means substitute x = 3 into the function

f(3) = 2(3) - 7

f(3) = 6 - 7

f(3) =-1

f(2), let x = 2

f(2) = 2(2) - 7

f(2) = 4 - 7

f(2) =-3

f(1) = 2(1) - 7

f(1) = 2 - 7

f(1) =-5

f(0) = 2(0) - 7

f(0) =0 - 7

f(0) = -7

f(-1) = 2(-1) - 7

f(-1) = -2 - 7

f(-1) = -9

g(x) = 5^x

find g(3), g(2), g(1), g(0), and g(-1)

g(3), substitute x = 3

g(3) = 5^3

g(3) = 5 x 5 x 5

g(3) = 125

g(2) = 5^2

g(2) = 5 x 5

g(2) = 25

g(1) = 5^1

g(1) = 5

g(0) = 5^0

any number raised to the power of zero = 1

g(0) = 1

g(-1) = 5^-1

g(-1) = 1/5

g(-1) = 0.2

Instructions: Factor 2x2 + 252 + 50. Rewrite the trinomial with the c-term expanded, using the two factors. Answer: 24 50

Answers

Given the polynomial:

[tex]undefined[/tex]

Need help with this.. tutors have been a great help

Answers

Given the table in I which represents function I.

x y

0 5

1 10

2 15

3 20

4 25

• Graph II shows Item II which represents the second function.

Let's determine the increasing and decreasing function.

For Item I, we can see that as the values of x increase, the values of y also increase. Since one variable increases as the other increases, the function in item I is increasing.

For the graph which shows item II, as the values of x increase, the values of y decrease, Since one variable decreases as the other variable decreases, the function in item I is decreasing.

Therefore, the function in item I is increasing, and the function in item II is decreasing.

ANSWER:

A. The function in item I is increasing, and the function in item II is decreasing.

which of the following describes the two spheres A congruentB similarC both congruent and similarD neither congruent nor similar

Answers

The two spheres are similar since they have a proportion of their radius. This proportion is 9/6 (3/2) or 6/9 (2/3).

They are not congruent. They do not have the same radius.

Therefore, the spheres are similar.

Assume that a sample is used to estimate a population proportion p. Find the 80% confidence interval for a sample of size 362 with 54 successes. Enter your answer as a tri-linear inequality using decimals (not percents) accurate to three decimal places.

Answers

We have to find the 80% confidence interval for a population proportion.

The sample size is n = 362 and the number of successes is X = 54.

Then, the sample proportion is p = 0.149171.

[tex]p=\frac{X}{n}=\frac{54}{362}\approx0.149171[/tex]

The standard error of the proportion is:

[tex]\begin{gathered} \sigma_s=\sqrt{\frac{p(1-p)}{n}} \\ \sigma_s=\sqrt{\frac{0.149171*0.850829}{362}} \\ \sigma_s=\sqrt{0.000351} \\ \sigma_s=0.018724 \end{gathered}[/tex]

The critical z-value for a 80% confidence interval is z = 1.281552.

Then, the lower and upper bounds of the confidence interval are:

[tex]LL=p-z\cdot\sigma_s=0.149171-1.281552\cdot0.018724\approx0.1492-0.0240=0.1252[/tex][tex]UL=p+z\cdot\sigma_s=0.1492+0.0240=0.1732[/tex]

As the we need to express it as a trilinear inequality, we can write the 80% confidence interval for the population proportion (π) as:

[tex]0.125<\pi<0.173[/tex]

Answer: 0.125 < π < 0.173

determine how many vertices and how many edges the graph has

Answers

in the given figure,

there are 4 vertices

and there are 3 edges.

thus, the answer is,

vertiev

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