help me i actually cant figure this out :(

Help Me I Actually Cant Figure This Out :(

Answers

Answer 1

To complete the square of the quadratic function x² + 10x + 4 we need to add 21

Completing The Square

Completing the square is a method in algebra that is used to write a quadratic expression in a way such that it contains the perfect square. In simple words, we can say that completing the square is a process where consider a quadratic equation of the ax² + bx + c = 0 and change it to write it in the form a(x + p)² + q = 0. This method is generally used to find the roots of a quadratic equation.

Completing the square formula is a technique or method to convert a quadratic polynomial or equation into a perfect square with some additional constant. A quadratic expression in variable x: ax² + bx + c, where a, b and c are any real numbers but a ≠ 0, can be converted into a perfect square with some additional constant by using completing the square formula or technique

The equation given is

x² + 10x + 4 = 0

Take 4 to right side

x² + 10x = -4

rewrite in (x + a)² = b form

(x + 5)² = 21

x + 5 = ±√21

x = √21 - 5

x = -√21 - 5

To complete the square, we need to add 21

Learn more on complete the square here;

https://brainly.com/question/13981588

#SPJ1


Related Questions

A company that makes​ hair-care products had 8000 people try a new shampoo. Of the 8000 ​people, 48 had a mild allergic reaction. What percent of the people had a mild allergic​ reaction?

Answers

0.6% of the people had a mild allergic​ reaction

What is Percentage?

percentage, a relative value indicating hundredth parts of any quantity.

Given,

A company that makes​ hair-care products had 8000 people try a new shampoo.

In the 8000 people, 48 had a mild allergic reaction.

We need to find the percent of the people had a mild allergic​ reaction

We have to find what is 48 percent in 8000.

x×8000=48

Divide both sides by 8000

x=48/8000

x=0.006

Now we need to multiply by 100 as it is a hundredth part.

0.006×100

0.6

Hence, 0.6% of the people had a mild allergic​ reaction

To learn more on Percentage click:

https://brainly.com/question/28269290

#SPJ1

Mercury orbits the Sun 3 times in 264 days.

a. How many times does Mercury orbit the Sun in 440 days?

Mercury orbits the Sun__________ times in 440 days.

Question 2
b. How many days does it take Mercury to orbit the Sun 8 times?
It takes Mercury_________ days to orbit the Sun 8 times.

Answers

Answer:

a. 15 days

b. 704 days

Step-by-step explanation:

a.264+88+88=440

b.It takes mercury 264 days to orbit the sun 3 times which means all you have to do is

264+264=528+264=792-88=704

3 + 3 = 6 + 3 = 9- 1 = 8

What number is 150% of 90

Answers

Answer: 135

Step-by-step explanation:

Answer: 145

Step-by-step explanation:

100% of 90 is, welll 90, and 50% of 90 is 45, so 150% of 90 is 145

ar chie and bijan share some money in the ratio 7 : 11. bijan gets £132. how much money does archie get?

Answers

Archie will get $84.

We have given that,

archie and bijjan share some money in the ratio 7:11 and bijjan get $132.

We have to find how much money will archie get.

Let us consider x as a money

i.e. 7x:11x

bijjan gets $132

means 11x = 132

             x  = [tex]\frac{132}{11}[/tex]

             x = 12

Therefore archie's money,

7x=7(12) = 84

Hence archie get $84.

A ratio can be defined as the relationship or comparison between two numbers of the same unit to check how bigger is one number than the other one. The concept of ratio defines us to compare two quantities while the proportion is an equation that shows that two ratios are equivalent.

To know more about ratio here

https://brainly.com/question/13640910

#SPJ4

Please answer! Another math prob!

Answers

Gavin worked 7 hours tutoring and 3 hours landscaping.

What is an expression?

Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.

Given that;

Gavin is working for making $14 per hour tutoring and $13 per hour landscaping.

And, Last week Gavin worked a total 10 hours and earned $137.

Now,

Let number of hour for tutoring = x

And, Number of hour for landscaping = y

Since,  Gavin is working for making $14 per hour tutoring and $13 per hour landscaping and earned $137.

So, We can formulate;

⇒ 14x + 13y = 137  ..(i)

And, Last week Gavin worked a total 10 hours.

So, We get;

⇒ x + y = 10  ..(ii)

Multiply by 13 in equation (ii) and subtract from (i0, we get;

⇒ 14x + 13y - 13x - 13y = 137 - 130

⇒ x = 7

And, x + y = 10

⇒ 7 + y = 10

⇒ y = 10 - 7

⇒ y = 3

Thus, Gavin worked 7 hours tutoring and 3 hours landscaping.

Learn more about the mathematical expression visit:

brainly.com/question/1859113

#SPJ1

using the following information. coefficients intercept −12.8094 independent variable 2.1794 anova df ss ms f regression 1 12,323.56 12,323.56 90.0481 residual 8 1,094.842 136.8553 total 9 13,418.4 what is the standard error of the estimate? multiple choice 136.8552 1,094.842 11.6985 13,418.4

Answers

The Standard error of the estimate is 11.6985

The standard error of estimate is the measure of variation of an observation made around around the regression line

Simply, It is used to check the accuracy of prediction made with the regression line. A standard deviation which measures the variation in the set of data from its mean, the standard error of estimate also measured the variation in actual values of Y from the computed values of Y on the regression line.

Given in the question,

coefficient of y-intercept = -12.8094

Coefficient of x = 2.1794

N-1 = 9

=> N = 10

SSE = 1094.842

Standard error of estimate = √SSE(N-2)

where , SSE is sum of square of error

S.E = √(1094.842)/ (10-2)

=> √(1094.842)/8

=> √136,855

=> 11.6985 is standard error

To know more about Standard error here

https://brainly.com/question/1191244

#SPJ4

What is the equation of this line in slope intercept form?

−x −5y=10

A y=−1/5x+10y

B y=5x−2y

C y=−1/5x−2y

D y=1/5x+10

Answers

C

Step-by-step explanation:

add x on both sides

-5y=10+x

divide both sides by -5

y=-1/5x-2

a researcher developing a regression equation to predict income (y) in thousands of dollars from age (x1) and educational status (x2) found a significant interaction between age and educational status (x3). educational status is a dummy variable with 0

Answers

36% of the variability equation to predict income (y) in thousands of dollars from age (x1) and educational status (x2) found a significant interaction between age and educational status (x3).

Given:

Correlation value: 0.6

The amount of variation in the dependent variable that can be predicted from the independent variable is shown by the coefficient of determination.

The correlation coefficient is equal to;

Since the correlation in this instance is equal to 0.6, our coefficient is 0.36. Therefore, the age of the home can account for 36% of the variation in equation to predict income (y) in thousands of dollars from age (x1) and educational status (x2) found a significant interaction between age and educational status (x3).

To learn more about dependent variable:

https://brainly.com/question/1479694

#SPJ4

two polygons are similar, and the ratio s1/s2? of their corresponding sides is 8/7. find the ratio of their areas, a1/a2.

Answers

Two polygons are similar, and the ratio s1/s2 of their corresponding sides is 8/7 then the ratio of their areas, a1/a2 = 64/49.

In the given question, two polygons are similar, and the ratio s1/s2 of their corresponding sides is 8/7.

We have to find the ratio of their areas, a1/a2.

As we know that, the measurement of the area that a polygon encloses serves as its definition. The area of a polygon is the space that it takes up in a two-dimensional plane since polygons are closed plane structures.

As given that, two polygons are similar.

The ratio of their corresponding sides are

s1/s2 = 8/7

According to properties of similar polygon, the ratio of the areas of the two polygons is the square of the ratio of the sides. Hence,

a1/a2 = (s1/s2)^2

a1/a2 = (8/7)^2

a1/a2 = 64/49

Hence, two polygons are similar, and the ratio s1/s2 of their corresponding sides is 8/7 then the ratio of their areas, a1/a2 = 64/49.

To learn more about area of polygon link is here

brainly.com/question/22590672

#SPJ4

tasmanian automobile licence plates consist of three capital letters (a through z) followed by three digits (0 through 9). how many different tasmanian license plates are possible?

Answers

tasmanian license plates are 8,000,000 combinations possible

In probability, what do combination and permutation mean?

Combinations and permutations may appear to be synonyms. However, they are defined differently in probability theory. Combinations: The sequence of results is irrelevant. Permutations: The sequence of events matters.

If an event is made up of numerous other events (i.e., when it is a list), we may calculate the probability that it will occur with the help of permutations and combinations. If the sequence of the events doesn't matter, we have a combination; if it does, we have a permutation. A permutation can be defined as an ordered combination.

An ordered combination is what is meant by a permutation.

The number of permutations of n objects, taken r at a time, is calculated using the formula below:

P(n,r)=n!(n-r)!

The following formula calculates the number of combinations of n objects taken r at a time: C(n,r)=n!/(n-r)!r!

there are 26^3 combinations of letters. And 10^3 combinations of numbers.

So the total combinations is 26^3 x 10^3 = 17,576,000

Many license plates don’t allow vowels a,e,i,o,u,and y which would accidentally form some awkward words…

Then you’d have 20^3 x 10^3 = 8,000,000 combinations.

Learn more about combinations

https://brainly.com/question/3901018

#SPJ4

tion for y: 2x + 3y = -6. Then, answer the questions that follow.
formed equation, what is the slope of the linear equation 2x + 3y = -6?
to find solutions to the linear equation.
x
Lesson 17 Problem Se
Transformed Linear Equation:
y

Answers

Answer:

The slope is -2/3

Step-by-step explanation:

2x + 3y = -6

We want to find the slope, so we need to get the equation in slope intercept form y = mx+b  where m is the slope and b is the y intercept

Subtract 2x from each side

3y = -2x+6

Divide each side by 3

y = -2/3x +2

The slope is -2/3

Please help asap now !!!!!

Answers

Answer:

220.25

Step-by-step explanation:

881 divided by 4 is 220.25

let $s$ be the set of the 2005 smallest positive multiples of 4, and let $t$ be the set of the 2005 smallest positive multiples of 6. how many elements are common to $s$ and $t$? (a) 166 (b) 333 (c) 500 (d) 668 (e) 1001

Answers

The number of elements that are common to S and T are 668 elements ,

the correct option is (d) .

In the question ,

it is given that ,

the set S is the set of 2005 positive multiple of 4

that is S = {4,8,12,16,....}

and the set T is the set of 2005 positive multiple of 6

that is T = {6,12,18,24,....}

and since the least common multiple , LCM of 4 and 6 is = 12,

So , elements that are common to set  S and T must be multiples of 12.

Since,  4 × 2005 = 8020 and 6 × 2005 = 12030,

the several multiples of 12 that are in set T won't be in set S,

but all multiples of 12 that are in set S will be in set T.

So we have to find the number of multiples of 12 that are in set S.

and since 4 × 3 = 12, that means every 3rd element of set S will be a multiple of 12.

which is = 2005/3 = 668 .

Therefore , there are 668 elements that are common .

The given question is incomplete , the complete question is

Let S be the set of the 2005 smallest positive multiples of 4, and let T be the set of the 2005 smallest positive multiples of 6. how many elements are common to S and T ?

(a) 166 (b) 333 (c) 500 (d) 668 (e) 1001

Learn more about Common Elements here

https://brainly.com/question/17009142

#SPJ4

Determine whether or not each of the following have the well-ordering property (i.e. whether "WOP(A;)" holds/is true or if is fails/is false). If for a set Ai, WOP(Ai) fails, then give a nonempty subset Eị of the set Aj which has no least element, i.e. give a subset that serves as a counterexample to "WOP(A;)", in other words give a witness that shows that the well- ordering property fails. 1 (iv) A4 = {5i +į lien} = {} \}} (v) A5 ne Z\ {0} n (vi) A6 = {-5, 7, 10, 13}

Answers

(iv) set A₄ holds well ordering property.

(v) set A₅ does not hold well ordering property.

(vi) set A₆ holds well ordering property.

(iv) A₄ = {5i+1/i I i ∈ N}

         = { 5(1) + 1/1, 2(2)+1/2, 5(3)+1/3, 5(4)+1/4, .....}

         = {5+1, 10+1/2, 15+1/3, 20+1/4, ....}

Elements of the set A₄ are distinct and increasing and 6 is the least elements of A₄.

set A₄ holds well ordering property.

(v) A₅ = { 1/n I n ∈ ZI }

        = {1,1/2,1/3,1/4,1/5,....}

A₅ does not hold well ordering property.

(vi) A₆ = {-5,7,10,13}

A₆ is the finite set and all elements are distinct .

For any sub sets of A₆ there exists a dense elements.

A₆ holds well deseriving property.

Hence we get the required answer.

Learn more about Sets here:

brainly.com/question/13458417

#SPJ4

first, we form a riemann sum with n rectangles (or subintervals). (i) what is the width of each rectangle? (ii) list the right-hand endpoints of each rectangle. (iii) list the heights of each rectangle. (iv) list the areas of each rectangle. (v) what is the riemann sum with n rectangles? you may use summation notation, but you do not need to.

Answers

The Reimann sum with n rectangle will be given as [tex]\sum^{n-1}_{i = 0} f{(x_i)} \Delta x[/tex]

Let us suppose that f is a non-negative function, defined over a closed interval represented by [a, b].

The integral of f with respect to x signifies the area between the graph of f and X-axis. This area would be called definite integral of a function f from a to b. Then Riemannian method of determining this area is:

“if the area is divided into n rectangles of very small breadth, then it would be simpler to calculate the area of such rectangles and then we can add them up

(i ) The width of each rectangle will be denoted as Δx

Δx = b-a/n,

where , a is lower bound

b is upper bound of the integral

(ii) The right-hand endpoints of each rectangle are refer as [tex]x_i[/tex] and we can find the right endpoints by [tex]x_i[/tex] = a + Δx.i

(iii) The height of each rectangle is the value of the function at the upper point of the interval.

a + (b-a)/n for the first rectangle , a + 2(b-a)/n for the second rectangle and so on

(iv) The area of the each rectangle will be

Area = Width × height

=> A = (b-a)/2 × a + i(b-a)/2

(v) The Riemann sum with n rectangles is

Area of rectangle = [tex]\sum^{n-1}_{i = 0} f{(x_i)} \Delta x[/tex]

Which is also known as Reimann sum

To know more about The Reimann sum here

https://brainly.com/question/28174121

#SPJ4

a gasoline tank is in the shape of a right circular cylinder (lying on its side) of length 10 ft and radius 4 ft. set up an integral that represents the volume of the gas in the tank if it is filled to a depth of 6 ft

Answers

The required integral for the gasoline tank is [tex]V = \int\limits_{ - 5}^3 {20 \cdot \sqrt {16 - {x^2}} } dx[/tex]

For the given circular cylinder, the desired limit is determined by the depth and radius of the cylinder. And, the integral function is obtained by employing a Pythagoras theorem. The final set-up must be in the form of [tex]{eq}\int\limits_a^b {f\left( x \right)dx}[/tex]

Let x be the vertical distance up from the centre line of the tank.

The radius of the right circular cylinder is 4 ft

The length of the right circular cylinder is 10 ft

The volume of the strip is determined by the front view of the right circular cylinder as follows:

dV=(L+L)dx×14

=2L×10dx

=20Ldx

The front view of the right circular cylinder is

x^2 + L^2 = 4^2

[tex]L = \sqrt{16 - x^2}[/tex]

Substitute the value of L in the equation of dV.

[tex]dV = 20 \cdot \sqrt {16 - {x^2}} dx[/tex]

The integral required to set up the volume at a depth of 6 ft will be given by taking integrals limits from -5 to 3

[tex]V = \int\limits_{ - 5}^3 {20 \cdot \sqrt {16 - {x^2}} } dx[/tex]

This is the required integral

Learn more about integration:

https://brainly.com/question/18125359

#SPJ4

find the probability if two dice are rolled. (enter the value of probability in decimals. round the answer to three decimal places.)

Answers

The probability of getting a total of 8 when two dice are rolled is 0.139.

Probability is a number that expresses the likelihood or chance that a specific event will take place. Probabilities can be represented by proportions on a 0–1 scale.

A single die will have six sides with the numbers: 1, 2, 3, 4, 5, and 6. Each of these events is equally likely to occur if the dice are rolled fairly. So the probability of getting any side of the number is 1/6. Therefore, the probability of getting 1 in dice is 1/6, 2 is 1/6, and so on.

Therefore, the total possible outcomes are the multiplication of the total possible outcomes on dice 1 and dice 2, which is 36.

This possible outcome of rolling two dice is given by,

[tex]\left\{\begin{array}{ccccccc}(1, 1)&(1, 2)& (1, 3)&(1, 4)&(1, 5)&(1, 6)\\(2, 1)&(2, 2)&(2, 3)&(2, 4)&(2, 5)&(2, 6)\\(3, 1)&(3, 2)&(3, 3)&(3, 4)&(3, 5)&(3, 6)\\(4, 1)&(4, 2)&(4, 3)&(4, 4)&(4, 5)&(4, 6)\\(5, 1)&(5, 2)&(5, 3)&(5, 4)&(5, 5)&(5, 6)\\(6, 1)&(6, 2)&(6, 3)&(6, 4)&(6, 5)&(6, 6)\end{array}\right\}[/tex]

The probability of getting a total of 8 from both dice is given by, (2, 6) (3, 5) (4, 4) (5, 3) (6, 2). So the number of favorable outcomes is 5 and the total outcome is 36. The probability is P(getting a total of 8 from both dices)=5/36= 0.139.

The answer is 0.139.

The complete question is -

Consider rolling dice and getting a total of 8. Find the probability of two dice are rolled. (Enter the value of probability in decimals. Round the answer to three decimal places).

To know more about dice probability:

https://brainly.com/question/17239706

#SPJ4

given any set of seven integers, must there be at least two that have the same remainder when divided by 6?

Answers

Given any set of seven numbers that should be at least 2 that must have the same remainder when divided by 6

What are the factors?

A factor is a number that completely divides another number. To put it another way, if adding two whole numbers results in a product, then the numbers we are adding are factors of the product since the product is divisible by them.

How do you find factors?

Step 1: factor the provided number into primes, or describe it as the product of primes.

Step 2: Write the prime factorization in exponent form in step three.

Step 3: Increase each exponent by one.

Step 4: Multiply each of the results.

There can only be a maximum of six different remainders when dividing by six: 0, 1, 2, 3, 4, and 5.

In any set of seven integers, two must have the same remainder when divided by seven according to the pigeon hole principle.

b) Consider set of integers 0, 1 ,2, 3, 4, 5 and 66. All these have different remainders upon division by 8 and hence the answer is no.

The interpretation is yes

To learn more about factors click the following link :-

https://brainly.com/question/26504247

#SPJ4

The parking garage at the airport has 625 parking spaces. 92% of the spaces are empty. How
many empty spaces are there in the parking garage?

Answers

Answer:

575 empty spaces

Step-by-step explanation:

If 625 --> 100% then

    X   --> 92%

X= (625 * 92)/100

X= 575

A drummer and a guitarist each wrote songs for their band. The guitarist wrote 10 fewer than twice the number of songs that the drummer wrote. They wrote a total of 50 songs. Write the system of equations that models this situation if the drummer wrote d songs and the guitarist wrote g songs.

Answers

Answer:

Step-by-step explanation:

no

why should nulls in a relation be avoided as much as possible? discuss the problem of spurious tuples and how we may prevent it.

Answers

Nulls in a relationship should be avoided as much as possible because of the following reasons:-

• Memory space will be wasted at the storage level

• When aggregate operations such as SUM, AVG etc. are performed on the attribute which has

null value, the result will be incorrect

• When JOIN operation involves an attribute with null values, the result may be unpredictable

• The NULL value has a different meaning. It may be unknown, not applicable or absent

Spurious tuples are generated as the result of bad design or improper decomposition of the base

table.

Spurious tuples are the tuples generated when a JOIN operation is performed on badly

designed relations. The resultant will have more tuples than the original set of tuples

• The main problem with spurious tuples is that they are considered invalid as they do not

appear in the base tables.

Spurious tuples can be avoided by taking care while designing relation schemas:

• The relations should be designed in such a way that when a JOIN operation is performed, the

attributes involved in the JOIN operation must be a primary key in one table and a foreign key in

another table

• While decomposing a base table into two tables, the tables must have a common attribute. The

the common attribute must be the primary key in one table and the foreign key in another table.

Hence the answer is given.

Read more about nulls at

https://brainly.com/question/25263462

#SPJ4

Using the Pythagorean Theorem, determine the distance from point (8, −6) to the origin
Pls help asap

Answers

Step-by-step explanation:

a point on a coordinate grid always creates a right-angled triangle.

the straight distance from the origin (0, 0) is the Hypotenuse (the side opposite of the 90° angle).

the coordinate distances in x and y directions are the 2 legs.

Pythagoras :

c² = a² + b²

c being the Hypotenuse, a and b being the legs.

so,

(distance from origin)² = x² + y²

because the x, y coordinates are the coordinate distances from the origin in x and in y direction.

distance² = 8² + (-6)² = 64 + 36 = 100

distance = sqrt(100) = 10

the point is 10 units apart from the origin.

Find the value of so that the graph of the equation has the given y-intercept
Y= -1/3x + 5/6k; b= -10

Answers

The value of 'k' will be;

⇒ k = - 12

What is Equation of line?

The equation of line in point-slope form passing through the points (x₁ , y₁) and (x₂, y₂) with slope m is defined as;

⇒ y - y₁ = m (x - x₁)

Where, m = (y₂ - y₁) / (x₂ - x₁)

Given that;

The graph of the equation has the given y-intercept are;

⇒ Y= -1/3x + 5/6k;  b= -10

Now,

Since, The equation of line in point-slope form will be;

⇒ y = mx + b

Here, The equation is,

⇒ Y= -1/3x + 5/6k

Hence, The y - intercept (b) = 5/6k

But here, b = - 10

So, We get;

⇒ 5/6 k = - 10

Solve for k as;

⇒ 5k = - 10 × 6

⇒ 5k = - 60

⇒ k = - 12

Thus, The value of 'k' will be;

⇒ k = - 12

Learn more about the equation of line visit:

https://brainly.com/question/18831322

#SPJ1

two boats leave a dock at the same time. one boat travels south at and the other travels east at . after half an​ hour, how fast is the distance between the boats​ increasing?

Answers

After half an hour the two boats will be at a distance of 68 mph

Given,

Both boats are moving in a direction that creates a right angle triangle. The lengths of the triangle's legs are the distances that both boats travelled going straight south and straight east. The hypotenuse of a right angle triangle is the distance between them after t hours.

Let x stand for the length of the triangle's shorter south leg.

Let y stand for the length of the right angle triangle's longer (east) leg.

Assume that z is the hypotenuse.

Using the Pythagorean theorem

Hypotenuse² = opposite side² + adjacent side²

Therefore

z² = x² + y²

We would discriminate with regard to t in order to ascertain the speed of the distances' alterations.

It develops,

2zdz/dt = 2xdx/dt + 2ydy/dt- - - -- - -1

One travels south at 32 mi/h and the other travels east at 60 mi/h. It means that

dx/dt = 32

dy/dt = 60

Distance = speed × time

Since t = 0.5 hour, then

x = 32 × 0.5 = 16 miles

y = 60 × 0.5 = 30 miles

z² = 16² + 30² = 256 + 900

z = √1156z = 34 miles

Substituting these values into equation 1, it becomes

2 × 34 × dz/dt = (2 × 16 × 32) + 2 × 30 × 60

68dz/dt = 1024 + 3600

68dz/dt = 4624

dz/dt = 4624/68

dz/dt = 68 mph

Therefore,

The distance between the boats after half an hour is 68 mph

Learn more about distance between the boats here;

https://brainly.com/question/16955861

#SPJ4

Completed question is given below with missing parts.

Two boats leave a dock at the same time. One boat travels south at 32 mi divided by hr32 mi/hr and the other travels east at 60 mi divided by hr60 mi/hr. After half an​ hour, how fast is the distance between the boats​ increasing?

​​​Shown below are the steps used to solve an equation.
5 - 3 (x - 1) = 4 - 7x
5 - 3x + 3 = 4 - 7x
8 - 3x = 4 - 7x
8 = 4 - 4x
x= -1
​Explain what is happening to the equation during each step in the solution.

Answers

5 - 3 (x - 1) = 4 - 7x, initial equation

5 - 3x + 3 = 4 - 7x, distributing 3 (x - 1) to get 3x + 3

8 - 3x = 4 - 7x, adding 3 to 5 to get 8

8 = 4 - 4x, subtracting 3x from both sides of the equation

x= -1, substituting x for the only possible value to make the equation true.

to sample the class you split the class into guys and girls. you then select at random 3 guys and 3 girls. what type of sampling did you do?

Answers

The type of sampling used to sample the class split into girls and boys is stratified sampling.

As given in the question,

Sample the class to split into guys and girls

Select at random 3 guys and 3 girls.

Types of sampling :

A simple random : Chances of selection is equally likely. Randomly choose the data.

False

B systematic: Samples are collected from large data so that it can systematically arranged.

False

C convenience : In this sample or data collection is done as per convenience.

False

D cluster : It divides the group into multiple group or clusters.

False

E stratified : This represents the division of heterogeneous group into fairly homogeneous group in form of strata.

True.

Therefore, the stratified sampling represents the splitting of class into guys and girls.

Learn more about sampling here

brainly.com/question/11045407

#SPJ4

if sam has 100 apples and Jante steals 36 from sam how many does sam have left

Answers

Answer:

the answer to that is 65.

Step-by-step explanation:

maths

If a circle has the diameter of 37in, what is the area?

Answers

Answer:

A = pi (r)^2, so first you have to find the radius. The radius = 18.5 since its diameter/2. So if you plug it in, its A = pi (18.5)^2 and your answer would be A = 1075.21. Hope I helped :))

Step-by-step explanation:

Point 8 in the graph below is reflected through the line y=-x.
Iy
++
-6-4-2
6-
2-
-2.
-6
B.
2 46. x
I
What are the coordinates of Point B', the image of Point B?

Answers

Answer:

[tex](-4,-5)[/tex]

Step-by-step explanation:

When reflecting over [tex]y=-x[/tex], [tex](x,y) \longrightarrow (-y, -x)[/tex].

Equivalent Ratios: Liam practiced piano 24 times in 4 weeks. His brother practiced 12 times in 2 weeks. Are the rates at which each brother practiced equivalent?

(1): Yes, they are equivalent.

(2): No, they are not equivalent.

Answers

Answer:

The rates are equivalent.

Step-by-step explanation:

Liam practiced piano 24 times in 4 weeks. 1 week = 7 days. 4 weeks = 28 days.

Other Questions
you suspect that cache poisoning or spoofing has occurred on your network. users are complaining of strange web results and being redirected to undesirable sites. which log would help you determine what's going on? Directions: Find the interior angle sum for each regular polygon. Round your answer to the nearest tenth if necessary.This polygon's angles measure???degrees. At 1,000 units of output, the fixed cost of production is $12,500 per week. Total cost of producing 1,000 units per week is $28,500 per week. The variable cost of producing 1,000 units of output per week is equal to _____. the gravitational force between two very large metal spheres in outer space is 56 n. how large would this force be if the mass of each sphere were halved? robyn noticed that international students on campus tend to interact with each other and seem to avoid interaction with americans. the same is true for american-born students. this situation is an example of what type of action? An employee works 38 hours a week for 50 weeks per year. If he earns 39,095 a year towards his family budget, what is his hourly wage? research has shown that memories formed by people born in china differ from those of people born in the usa. the research would argue the reasoning for this is because: What is the current regional trade agreement that guides trade in north america?. Arrange the following gases in order of increasing average molecular speed at 25 c. He, o2, co2, n2. which of the following statements best describes the effect of alcohol on human functioning? (A) It depresses the central nervous system.(B) It increases alertness and enhances perception.(C) It facilitates the release of norepinephrine.(D) It depresses the thyroid system.(E) It distorts auditory perception. Independent random samples taken at two companies provided the following information regarding annual salaries of the employees. The population standard deviations are also given below. Company A Company B Sample Size 72 50 Sample Mean (in $1000) 48 43 Population Standard Deviation (in $1000) 12 10 a. We want to determine whether or not there is a significant difference between the average salaries of the employees at the two companies. Compute the test statistic. b. Compute the p-value; and at a=.05, test the hypotheses. c. Which company, if either, appears to have the higher salary? Provide a 95% confidence interval for the difference between the population mean salary of employees for the two companies. Question 2 (1 poingThis table shows the total shipping costs for objects ofdifferent weights.Shipping Costs$6.00$3.00$1.50O $1.25Weight of Object(in pounds)481216Total Shipping Cost(in dollars)5111723Based on the information in the table, by how many dollarsdoes the total shipping cost increase if the weight of anobject increases by 1 pound? a pregnant woman has undergone prenatal screening that has revealed evidence of congenital heart defect in the fetus. the nurse interprets this finding as indicative of which type of inheritance? what clinical manifestations does the nurse recognize when a patient has had a right hemispheric stroke? quilzet is the maximization of profit margin (profit as a percentage of total sales) a valid financial objective of a corporation? discuss. What solid substances are found in rocks that make up the Earth's crust?A. ConcreteB. PlasticsC. MineralsD. Miners Ahely' brother rode beide her for everal minute. During thi time wa he moving relative o Ahley? What are some of the positive things that happened in America as a result of WWI? What newopportunitiesdid people have? the preoperative nurse has prepared a client for surgery and has been notified that the operating room staff is ready for the client. the client states, "my bladder feels full. i need to go to the bathroom!" which action by the nurse is appropriate? Write a narrative detailing the sequence of events a high school student experiences from their arrival at school to the dismissal at the end of the school day. Pay special attention to characters, setting, dialogue and plot.