In order to understand more about the home internet access of a university with 12768 students, three staff members set out to sample a number of students. Below are their plans for sampling the students. Plan 1: One staff member thought that internet access could be different based on the size of the town/city where the student lives, so she obtained a list of all students at the university, divided them into three groups, students living in small-, medium-, and large-sized towns. 10% of students lived in small towns, 40% lived in medium-sized towns, and 50% lived in large-sized towns, so she randomly selected 20 of the students from small towns, 80 from medium-sized towns, and 100 from large-sized towns. Plan 2: The other staff member decided that it would be most efficient to contact students through the online course management system. He randomly sampled 20 courses from the course catalog, and contacted all students in each of these 20 courses through the online course management system. (You may disregard the negligible probability that some student was enrolled in more than one of these 20 courses.) Plan 3: The last staff member had access to a list of students that lived in the dorms, and used a computer program to randomly select 250 students from this list. The staff members took care not attempt to influence student responses in any way. Which of these three plans will result in representative samples of the population of students, on aver

Answer:

since they have the same y value, your equation is just y=9

I hope this helps!

The fraction that is equal to 6 can be some of the following:

[tex]\mathbf{\dfrac{6}{1} \ ; \dfrac{12}{2} \ ; \dfrac{18}{3} \ ; \ \dfrac{24}{4}\ ; \ \dfrac{36}{6} }[/tex]

A fraction usually comprises a numerator and a denominator separated by a division line.

The factors of a given number are the numbers that can be divided in such a given number without a remainder.

From the given example, we are to determine the factors of 6, so we will think about a number that can be divided by 6 without leaving any remainder.

These numbers are:

From these numbers, we can pick two factors that when divided together, we get 6 as our result and without any remainder.

i.e.

The fraction that is equal to 6 are:

[tex]\mathbf{\dfrac{6}{1} \ ; \dfrac{12}{2} \ ; \dfrac{18}{3} \ ; \ \dfrac{24}{4}\ ; \ \dfrac{36}{6} }[/tex]

Learn  more about fractions here:

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Answer:

5km/hr

Step-by-step explanation:

Given

Distance = 3km and 2km

Time = 30 mins, 15 mins, 15 mins

Required

Determine the average speed

To answer this, we need to determine the total distance.

Distance =3km + 2km = 5km

Then, we calculate the total time

Time = 30 mins + 15 mins + 15 mins = 1 hr

Next, we can now determine the average speed using:

Average Speed = Total Distance/Total Time

Average Speed = 5km/1 hr

Average Speed = 5km/hr

Answer

-25$

Step-by-step explanation:

Answer:

85.02 feet

Step-by-step explanation:

In order to solve this we need to use Herons formula to discover the Area of the triangle and then solving the formula of the area to find the height.

Herons formula starts by calculating the semi-perimeter which is half the perimeter of the Triangle:

[tex]s=\frac{a+b+c}{2}\\ s=\frac{127+93+132}{2}\\s=176[/tex]

Now that we knwo that s= 176 we need to use the second part of the formula:

[tex]A=\sqrt{(S-A)(S-B)(S-C)} \\\\A=\sqrt{(176-127)(176-93)(176-132)}\\A=\sqrt{176(49)(83)(44)} \\A=5612.02[/tex]

So the area is 5612.02, with that we just have to solve the equation for area, which is [tex]A=\frac{B*H}{2}[/tex]

So it would be 2A*B=H

H=2*5612.02*132

H=85.03

Answer:

490 is the answer of the 7units of area

Step-by-step explanation:

mark me BRAINLIEST

Answer:

7 1/3 servings

Step-by-step explanation:

0.75x=5.5

x=5.5÷0.75

x=7.33333

 -or-

7 1/3 servings

Answer:

x < -6

Step-by-step explanation:

Answer:

-7 or x <-6

Step-by-step explanation:

To add to a number that’s in a subtracting equation you must use a negative number because a negative with a subtraction equals adding

Answer:

2x² - 5x - 3 < 0

let the positive integer be 'X'

5x < 2x² - 3

-2x² + 5x + 3 < 0

The equation is 2x² - 5x - 3 < 0

Answer:

Hi there

Your answer is

s= (twv)/u

Step-by-step explanation:

su=twv

/u

s= (twv)/u

Answer:

above sea level

Step-by-step explanation:

as anything bellow sea level would be negative meters and if you go up the number gets larger.

Answer:

The answer is A.

Step-by-step explanation:

Answer: 2 and 16/45 or 2 (16/45)  

Step-by-step explanation:brainlest please

is 2.35 the answer

Answer:

sum

Step-by-step explanation:

quotient is the result of division

sum is the result of addition

product is the result of multiplication

difference is the result of subtraction

its ez math

Answer:

x = 14

Step-by-step explanation:

[tex]f(x) = 10 - \frac{9}{2} x \\ \\ plug \: f(x) = - 53 \\ \\ - 53 = 10 - \frac{9}{2} x \\ \\ \frac{9}{2} x = 10 + 53 \\ \\ \frac{9}{2} x = 63 \\ \\ x = 63 \times \frac{2}{9} \\ \\ x = 7 \times 2 \\ \\ x = 14[/tex]

Answer:

(a) 1,411,200.

(b) 302,400.

(c) 100,800.

(d) 1,008,000.

Step-by-step explanation:

Permutation is the number of ways to select k items from n distinct items in a specific order.

The formula to compute the permutation or arrangement of k items is:

[tex]^{n}P_{k}=\frac{n!}{(n-k)!}[/tex]

(a)

Compute the total number of schedules as follows:

[tex]\text{Total Number of Schedules}=\ ^{8}P_{4}\times \ ^{7}P_{4}[/tex]

                                          [tex]=\frac{8!}{(8-4)!}\times \frac{7!}{(7-4)!}\\\\=\frac{8\times 7\times 6\times 5\times 4!}{4!}\times \frac{ 7\times 6\times 5\times 4\times 3!}{3!}\\\\=(8\times 7\times 6\times 5)\times (7\times 6\times 5\times 4)\\\\=1411200[/tex]

Thus, the total number of schedules are, 1,411,200.

(b)

Compute the number of schedules that includes neither sister as follows:

If neither of sister are included in the schedule then the number of players from the team are 7 and 6 respectively.

[tex]\text{Number of Schedules without the sisters}=\ ^{7}P_{4}\times \ ^{6}P_{4}[/tex]

                                                               [tex]=\frac{7!}{(7-4)!}\times \frac{6!}{(6-4)!}\\\\=\frac{ 7\times 6\times 5\times 4\times 3!}{3!}\times \frac{ 6\times 5\times 4\times 3\times 2!}{2!}\\\\=(7\times 6\times 5\times 4)\times (6\times 5\times 4\times 3)\\\\=302400[/tex]

Thus, the number of schedules that includes neither sister is 302,400.

(c)

Compute the number of schedules including both sisters and have them playing against each other as follows:

If both the sisters are playing against each other then there will be three more places to be filled in both the teams.

And the two sisters can play in any of the 4 matches.

[tex]\text{number of schedules including} \\\text{both sisters against each other}=(\ ^{7}P_{3}\times \ ^{6}P_{3})\times 4[/tex]

                                                [tex]=[\frac{7!}{(7-3)!}\times \frac{6!}{(6-3)!}]\times 4\\\\=[\frac{ 7\times 6\times 5\times 4!}{4!}\times \frac{ 6\times 5\times 4\times 3!}{3!}]\times 4\\\\=[(7\times 6\times 5)\times (6\times 5\times 4)]\times 4\\\\=100800[/tex]

Thus, the number of schedules including both sisters and have them playing against each other is 100,800.

(d)

Compute the number of schedules including both sisters as follows:

[tex]\# \text {Schedules with the Sisters}=\text{Total}\ \#\ \text{Schedules }-\ \# \text {Schedules without the Sisters}[/tex]                                             [tex]=1411200-302400\\=1108800[/tex]

Now compute the number of schedules having the sisters playing in different matches as follows:

[tex]\text{Playing in Different Matches}=\# \text {Schedules with the Sisters}-\text{Playing together}[/tex]

                                              [tex]=1108800-100800\\=1008000[/tex]

Thus, the number of schedules including both sisters, but have them playing in different matches is 1,008,000.

Answer:

Exact Form:

c  =   − 1 2

Decimal Form:

c  =  − 0.5

Step-by-step explanation:

Answer:

c = 3

I hope this helps!

Answer:

exact form:

9/2

decimal form:

4.5

mixed number form:

4 1/2

Step-by-step explanation: sorry if this wasnt what you were looking for.

Answer:

B. 86.6 :))

Step-by-step explanation:

took the test on edge

Answer:

102

Step-by-step explanation:

You multiply 34 and 2 which gives you 68. Then you add 34 and 68 which gives you 102.

Answer:

65/100

Divide is by 100.

Answer:

1.7n +28.5

Step-by-step explanation:

you compare like terms first

1.5n add it to 2n

it will equal to 1.7

then add 16.5 to 12

it will equal to 28.5

Your new equation will be

1.7n+ 28.5 if it was equal to something let's say it was equal to 180 as an example:

your equation will be

1.7n + 28.5= 180

-28.5= -28.5

1.7n= 151.5 you would divide it

it would equal 89.1 and change.

Answer:

its 35

Step-by-step explanation:

y = 6

and 6 times 6 is 36

and 36 minus 1 is 35

:)

Answer:

1/9 or 11.11%

Step-by-step explanation:

On a standard die, there are two numbers greater than 4, 5 and 6. 5 and 6 make up 2/6 of a die, or 1/3. So the probability of getting 5 or 6 once is 1/3 then to find the probability of doing it twice in a row, multiply 1/3 by 1/3( its the same number because there is no innate difference in the rolls). 1/3*1/3=1/9.  

Answer:

need a picture to answer the question

Answer:

  y = -x -1

Step-by-step explanation:

The x- and y-coordinates will be the same for the parallel line, so we only need to find the constant that needs to replace the +8 in the given equation.

  y = mx +b

  y = -x +b . . . . . with the coefficient of x filled in

  -4 = -(3) +b . . . with the given point filled in

  b = -1 . . . . .add 3 to both sides

The equation is ...

  y = -x -1

Answer:y = -x -1

Step-by-step explanation:

Answer:

$3.23

Step-by-step explanation:

Given that,

Principal, P = $2,000

Rate of interest, r = 1.96%

Tie, n = 1 month = (1/12) years

The formula of compound interest is given by :

[tex]CI=P[(1+\dfrac{R}{100})^n-1]\\\\CI=2000\times [(1+\dfrac{1.96}{100})^{1/12}-1]\\\\CI=3.23[/tex]

So, the interest will she earn at the end of 1 month is $3.23

The amount she earns at the end of 1 month is 200,326cents

The formula for calculating the compound amount is given as:

A = 2000(1 + 0.0196/12)^(12*1/12)

A = 2000 (1+0.00163)^1

A = 2000(1.00163)

A = $2,003.26

Hence the amount she earns at the end of 1 month is 200,326cents

Learn more on compound interest here: https://brainly.com/question/24924853

Answer:

30-40=-10

-10x3= -30

Step-by-step explanation:

Answer:

9000

Step-by-step explanation:

10^3 means 10*10*10 which = 1000

1000*9 equals 9000

an easier way to think of this is just look at the exponet and add that many zeros to 9

Answer:

9,000

Step-by-step explanation:

9 X 10^3 = 9,000.

Hope it helps!

Answer:

+/- 8i

Step-by-step explanation:

x^2 = -64

square root (x^2) = square root of (-64)

x =  +/- 8* the square root of (-1)

x = plus or minus 8i

The solution for the given quadratic equation are 8i and -8i.

The given quadratic equation is x²=-64.

A complex number is the sum of a real number and an imaginary number. A complex number is of the form a + ib and is usually represented by z.

Here, square root on both the sides of an equation

That is, x=√(-64)

Simplify the radical by breaking the radicand up into a product of known factors, assuming positive real numbers.

= ±8i

Therefore, the solution for the given quadratic equation are 8i and -8i.

To learn more about the complex numbers visit:

https://brainly.com/question/10251853.

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