what is the final step to be performed in the mathematical expression, (σx)2? group of answer choices square the sum of the scores square each score add the squared scores add the scores

Answer:

When Jose plays his guitar, the friction between his fingers and the strings allows him to pluck the strings. The friction creates some heat and the vibration of the strings creates the sound. The original amount of energy he applies to the strings is 1000 joules. The energy of the vibrating strings is measured and is found to be 800 joules.

Was energy lost?

Explain:Step-by-step explanation:

Answer:

factor: 5(2x'y'+3xy)

Step-by-step explanation:

thats for factoring, i didnt know what you needed

Answer:

25xy

Step-by-step explanation:

collect like terms

Answer:

$18.5

Step-by-step explanation:

You just add up all the costs and divide them by two and then you would get your answer

Answer:

The answer is x= -5

Step-by-step explanation:

hope this helps

Solutions:

7x – 11x = 20

-4x=20

To find the x divide both side by -4

-4x/-4=20/-4

x= -5

Answer:

7x-11x=20

-4x=20

x=20/-4

x= -5

Answer:

4

Step-by-step explanation:

twice 4=8

decreased by four =4

is less than 8

2x - 4 < 8 !??!?! if an equation is what you need for it lol

Answer:

3960 Degrees

Step-by-step explanation:

There is a formula for this!

In this n=24 since there are 24 sides.

The formula is 180(n-2).

Hope this helped and please mark me as Brainliest if possible.

Note that in this random sample of 20 students, 44/20 = 2.2 students are enrolled in the nursing program. However, since we can't have a fraction of a student, we round to the nearest whole number and say that there are 2 students enrolled in the nursing program. (Option B)

To carry out one trial of this simulation, we will use the digits in the first line of the random number table, reading from left to right. Each digit corresponds to one student in the sample of 20. We will use the given assignment of digits to outcomes to determine whether each student is enrolled in the nursing program or not.

The first digit is 1, which corresponds to a student enrolled in the nursing program. The second digit is 3, which corresponds to a student not enrolled in the nursing program. The third digit is 1, which corresponds to a student enrolled in the nursing program. The fourth digit is 6, which corresponds to a student not enrolled in the nursing program. The fifth digit is 4, which corresponds to a student enrolled in the nursing program.

Continuing in this way, we can assign outcomes to all 20 students in the sample. Counting the number of students enrolled in the nursing program, we have:

1 + 1 + 4 + 5 + 9 + 6 + 1 + 0 + 8 + 9 = 44

So, in this random sample of 20 students, 44/20 = 2.2 students are enrolled in the nursing program. However, since we can't have a fraction of a student, we round to the nearest whole number and say that there are 2 students enrolled in the nursing program. (Option B)

Learn more about random sample at:

https://brainly.com/question/29852583

#SPJ1

Answer:

48

Step-by-step explanation:

2-6$83737463363+77#7#+#++;#+#73737363644646464672727282939

Answer:

10

Explanation:

n(U)= 50

n०(E)= 15

n०(F)= 20

number of (E U F) whole complement= 5

NOW,

n(U)= 15+20+5+n(E intersection F)

or, 50= 40+n(E intersection F)

.•. n( E intersection F) = 10

Answer:

y=12x-39

Step-by-step explanation:

it's linear equation so the domain is real number

Answer:

vienna can purchase 6 more yards

Using Complete the Square method, we find out that \(x^{2} -5x+8\) can be expressed in the form of \((x-a)^{2}+b\) as \((x-\frac{5}{2}) ^{2} +\frac{7}{4}\) where a and b are top-heavy fractions.

It is given to us that the expression is -

\(x^{2} -5x+8\) ----(1)

We have to express it in the form of\((x-a)^{2}+b\) where a and b are top-heavy fractions.

In order to achieve the required expression in the form of  \((x-a)^{2}+b\) we have to use "Completing the Square" method.

The given expression from (1) is -

\(x^{2} -5x+8\)

This expression is in the form of \(ax^{2} +bx+c\)

Adding and subtracting \((b/2)^{2}\) terms into the expression, we get

\(x^{2} -5x+[\frac{5}{2}] ^{2}-[\frac{5}{2}] ^{2}+8\) -----(2)

Equation (2) can also be represented as -

\((x-\frac{5}{2}) ^{2} -[\frac{5}{2}] ^{2} +8\)

\(= > (x-\frac{5}{2}) ^{2} -\frac{25}{4} +8\\= > (x-\frac{5}{2}) ^{2} +\frac{7}{4}\)------- (3)

We see that equation (3) is in the form of \((x-a)^{2}+b\).

So, we can derive that -

\(a=\frac{5}{2}\)

and, \(b=\frac{7}{4}\).

Thus, \(x^{2} -5x+8\) can be expressed in the form of \((x-a)^{2}+b\) through "Complete the Square" method as \((x-\frac{5}{2}) ^{2} +\frac{7}{4}\) where a and b are top-heavy fractions.

To learn more about complete the square method visit https://brainly.com/question/4822356

#SPJ9

To complete a pairwise ranking matrix of 7 events, we need to make a total of 21 pairwise comparisons.What is a pairwise ranking matrix?

A pairwise ranking matrix is a matrix that lists the results of pairwise comparisons. In this type of matrix, each row and column represents a participant, team, or event, and the cell at the intersection of the row and column represents the outcome of a comparison between the two.

A comparison is made between every pair of events, and the result of the comparison is recorded in the matrix. The entries on the main diagonal of the matrix are all zero since an event cannot be compared to itself

.How to calculate the number of pairwise comparisons for 7 events?

To calculate the number of pairwise comparisons for 7 events, we use the formula n(n - 1)/2, where n is the number of events.

So, for 7 events, we have:n(n - 1)/2 = 7(7 - 1)/2= 7(6)/2= 21Therefore, we need to make 21 pairwise comparisons to complete a pairwise ranking matrix of 7 events.

To know more about the ranking matrix visit:

https://brainly.in/question/55766207

#SPJ11

It is False that by adding the number of inner loops , we get the total number of iterations.

A loop is defined as a segment of code that executes multiple times. Iteration refers to the process in which the code segment is executed once. One iteration refers to 1-time execution of a loop. A loop can undergo many iterations.

There are 3 types of iteration: tail-recursion, while loops, and for loops. We will use the task of reversing a list as an example to illustrate how different forms of iteration are related to each other and to recursion. A recursive implementation of reverse is given below.

To learn more about iteration of loops

brainly.com/question/14266710

#SPJ4

Answer:

27

Step-by-step explanation:

looked on photomath

Answer:

C

Step-by-step explanation:

We have the system of equations:

\(\left\{\begin{array}{ll}2x-5y=-5 \\ x+2y=11\end{array}\)

And an ordered pair (10, 5).

In order for an ordered pair to satisfy any system of equations, the ordered pair must satisfy both equations.

So, we can eliminate choices A and B. Satisfying only one of the equations does not satisfy the system of equations.

Let’s test the ordered pair. Substituting the values into the first equation, we acquire:

\(2(10)-5(5)\stackrel{?}{=}-5\)

Evaluate:

\(20-25\stackrel{?}{=}-5\)

Evaluate:

\(-5\stackrel{\checkmark}{=} -5\)

So, our ordered pair satisfies the first equation.

Now, we must test it for the second equation. Substituting gives:

\((10)+2(5)\stackrel{?}{=} 11\)

Evaluate:

\(20\neq 11\)

So, the ordered pair does not satisfy the second equation.

Since it does not satisfy both of the equations, the ordered pair is not a solution to the system because it makes at least one of the equations false.

Therefore, our answer is C.

The required distance on the map (in centimeters) represents an actual distance of 4 kilometers is a) 3.2 cm and the actual number of kilometers that is represented by 5 centimeters on the map is b) 6.25 km.

The distance of an object can be defined as the complete path travelled by an object .Distance is a scalar quantity that refers to "how much ground an object has covered" during its motion.

Given:

The scale of a map says that 4 cm represents 5 km.

According to given question we have

a.

So, (4 km)/(5 km) = 0.8

4 km is 0.8 of 5 km, so in the map it is 0.8 of 4 cm.

4 kilometers

=0.8 ×4 cm

= 3.2 cm

b.

So, (5 cm)/(4 cm) = 1.25

5 cm is 1.25 times 4 cm, so it represents 1.25 × 5 km.

5 centimeters

=1.25 × 5 km

= 6.25 km

Therefore, the required distance on the map (in centimeters) represents an actual distance of 4 kilometers is a) 3.2 cm and the actual number of kilometers that is represented by 5 centimeters on the map is b) 6.25 km.

Learn more details about distance here:

https://brainly.com/question/13034462

#SPJ2

Answer:

see explanation

Step-by-step explanation:

The sum of the 3 angles in a triangle = 180°

Sum the3 given angles and equate to 180

x + 6 + 3x - 2 + 7x = 180, that is

11x + 4 = 180 ( subtract 4 from both sides )

11x = 176 ( divide both sides by 11 )

x = 16

Thus

∠ V = x + 6 = 16 + 6 = 22°

∠ W = 3x - 2 = 3(16) - 2 = 48 - 2 = 46°

∠ X = 7x = 7(16) = 112°

The required value of x is 22 degrees for the given figure.

Adjacent angles are a sort of additional angle. Adjacent angles share a common side and vertex, such as a corner point. Their points do not overlap in any manner.

As we know that supplementary angles are defined as when pairing of angles addition to 180° then they are called supplementary angles.:

According to the given figure, it can be written as follows:

2x + 24 + 6x - 20 = 180

8x + 4 = 180

8x = 180 - 4

8x = 176

x = 176/8

x = 22

Therefore, the required value of x is 22 degrees for the given figure.

Learn more about supplementary angles here:

brainly.com/question/3027144

#SPJ1

The complete question is as follows:

Find the value of x for the below figure.

The null and alternative hypotheses are-

The null and alternate hypothesis must be formulated as two opposed and mutually excluding hypotheses for hypothesis testing.

A specific laptop model's battery has a typical life of more than 9 hours, according to the claim.

For this assertion, we form:

Null hypothesis H₀; μ ≤ 9

Alternative hypothesis Hₐ: μ > 9

The assertion is represented by the alternative hypothesis in this right-tailed test.

To know more about the alternate hypothesis, here

https://brainly.com/question/26185548

#SPJ4

We can define the speed as the quotient between the distance moved, and the time it takes to move that distance, so we have:

speed = Distance/Time.

Now we can rewrite this as:

Distance = Speed*Time.

We will find that the speed of the car was 21 mi/h.

Here the information given is:

Mr. Pipkins speed is: S = 3.5 mi/h

The car needed 27 "steps" to reach the corner.

Mr. Pipkins needed 27 + 135 = 162 "steps" to reach the same corner.

Because the number of steps is related to time and distance, the ratio between the number of steps should be the same as the ratio between the speeds:

162/27 = 6

(Pipkins needed 6 tomes more steps than the car, so the car moves 6 times faster than Pipkins)

This means that the speed of the car is 6 times larger than the speed of Mr. Pipkins.

Then the speed of the car is:

S' = 6*(3.5 mi/h) = 21 mi/h.

If you want to learn more, you can read:

https://brainly.com/question/24594539

Answer:

7/15

Step-by-step explanation:

Well 4/5 - 1/3 = 12 / 15 - 5 / 15 which is equal to 7/15, but there aren't any expressions in your question.

Answer:

7/15

Step-by-step explanation:

4/5 - 1/3 = 12 / 15 - 5 / 15 = 7/15

The inequality 3 ≤ x - 2 simplifies to x ≥ 5. This means x can take any value greater than or equal to 5. Therefore, option (E) with a number line from positive 5 to positive 10 is correct.

Given: 3 \(\leq\) x - 2

We need to work out which number line below shows the values that x can take. In order to solve the inequality, we will add 2 to both sides. 3+2 \(\leq\) x - 2+2 5 \(\leq\) x

Now the inequality is in form x \(\geq\) 5. This means that x can take any value greater than or equal to 5. So, the number line going from positive 5 to positive 10 shows the values that x can take.

Therefore, the correct option is (E) A number line going from positive 5 to positive 10.  We added 2 to both sides of the given inequality, which gives us 5 \(\leq\) x. It shows that x can take any value greater than or equal to 5.

Hence, option E is correct.

For more questions on inequality

https://brainly.com/question/30238989

#SPJ8

Answer:

22¹/₂ minutes

Step-by-step explanation:

If Trent and Vivian go to the basketball court at the park for 45 minutes after school to practice shooting free throws, the total time it takes for the both of them to shoot free throws is 45 minutes.

Let the amount of time Trent and Vivian shoot the free throws be t₁ and t₂ respectively.

Since they both throw at equal times, t₁ = t₂ = t.

Now t₁ + t₂ = 45 the total time it takes to shoot the free throws.

Since, t₁ = t₂ = t.

t₁ + t₂ = 45

substituting t into the equation, we have

t + t = 45

adding the t's, we have

2t = 45

dividing both sides by 2, we have

t = 45/2

t = 22¹/₂ minutes

So, it takes each person 22¹/₂ minutes to shoot free throws.

Answer:

22 1/2 minutes

Step-by-step explanation:

45 divided by two =22 1/2

Hope this helps :)

This rational function satisfies the conditions that r(2) is undefined, lim r(x) = 1 as x approaches infinity, and lim r(x) = 8 as x approaches 3.

We want to find a rational function r(x) that satisfies the given conditions as follows:

r(2) is undefined

lim r(x) = 1

lim r(x) = = 8.

x 3

First, let's focus on r(2) being undefined.

A rational function is undefined where its denominator is equal to zero.

So we need to make the denominator of r(x) (x - a), where a is a number, equal to zero at x = 2.

Let's set (x - 2) equal to zero and solve for x as follows: x - 2 = 0x = 2

We see that x = 2 satisfies the requirement that r(2) is undefined.

Now let's make sure that r(x) approaches 1 as x approaches infinity. To make the numerator approach 1 and the denominator approach infinity, we can make the degree of the numerator 0 and the degree of the denominator 1, such that the numerator is a constant and the denominator is a linear function of x.

For example, let's set the numerator to 1 and the denominator to x - 3.

Now let's check that lim r(x) = 1 as x approaches infinity.

We can do this by dividing the numerator and denominator of r(x) by the highest power of x in the denominator, which is x, as follows:

r(x) = 1 / (x / (x - 3)) = (1 / x) / ((x - 3) / x)

As x approaches infinity, the numerator approaches zero, and the denominator approaches 1.

Therefore, lim r(x) = 0/1 = 0 as x approaches infinity.

Next, we need to find a value of x for which lim r(x) = 8.

Let's set the denominator of r(x) equal to x - 3, since we want to approach 8 as x approaches 3.

To make the numerator approach 8, we need to multiply it by (x - 3) / (x - 3).

So let's set the numerator of r(x) equal to 8(x - 3).

Then: r(x) = 8(x - 3) / (x - 3) = 8as x approaches 3, the denominator approaches zero, and the numerator approaches 8. Therefore, lim r(x) = 8 as x approaches 3.

Finally, we can combine the three conditions we found to get:

r(x) = 8(x - 3) / ((x - 2)(x - 3))

This rational function satisfies the conditions that r(2) is undefined, lim r(x) = 1 as x approaches infinity, and lim r(x) = 8 as x approaches 3.

To know more about rational function, visit:

https://brainly.com/question/8177326

#SPJ11

The function r(x) = (x-3)/(x-2) meets all the specified conditions: it is undefined at x = 2, the limit of the function as x approaches any number other than 2 is 1, and the limit as x approaches 3 of (x-2)r(x) equals 8.

A suitable function that meets all the specified conditions would be r(x) = (x-3)/(x-2).

Let's analyze why this function meets the conditions:

https://brainly.com/question/27914791

#SPJ2

In a simple linear regression model , if we change the input variable by 1 unit , output variable will change by its slope.

What is linear regression?

According on the value of another variable, a variable's value can be predicted using a linear regression analysis. The dependent variable is the one you're trying to forecast. The term "independent variable" refers to the variable you are using to forecast the value of the other variable.

For linear regression

Y=a + bx + error

If we neglect error

then Y=a + bx.

If x increases by 1

then Y = a +b(x+1) which implies

Y=a + bx + b.

So Y increases by its slope.

Hence their is an increase in the slope in y.

To learn more about linear regression click on the link below

brainly.com/question/2120341

#SPJ4

Answer:

-37, -36

Step-by-step explanation:

the sum is -73

the numbers are consecutive so they must both be negative

73 /2 = 36.5  so the numbers are

-36 + -37 = -73

Answer:

-36

Step-by-step explanation:

All we need to do is this equation:

x+(x+1)=number

So, x+x+1=-73

2x+1=-73

 -1       -1

2x=-74

/2    /2

x=-37

we can check this by adding -37+-36=-73 because -37 would be the lesser number.

Watch out, because that is the lesser number. -36 would be greater.

So -36.

Answer:

x=12

Step-by-step explanation:

given: 9(x-11)=9

Distribution: 9x-99=9

Simplify:(common denominator is 9) x-11=1

x=12

Step-by-step explanation:

multiply the 9 in the brackets, so the equation will be 9x-99=9.

next move -99 to the other side and change its sign

making the equation 9x=108

now diveide both sides by 9 to leave x alone.

x=12 is the final answer;)

P(E1) + P(E2) - P(E1 ∩ E2) is the probability that at least one of the two events occurs in any trial of the experiment.

The correct answer is D. P(E1) + P(E2) - P(E1 ∩ E2).

The probability that at least one of two events occurs can be calculated using the principle of inclusion-exclusion.

The formula for this is:

P(E1 or E2) = P(E1) + P(E2) - P(E1 and E2)

Where:

P(E1) is the probability of event E1 occurring.

P(E2) is the probability of event E2 occurring.

P(E1 and E2) is the probability of both events E1 and E2 occurring simultaneously.

This formula represents the probability that at least one of the two events (E1 or E2) occurs in any trial of the experiment.

It's derived using the principle of inclusion-exclusion.

P(E1) represents the probability of event E1 occurring.

P(E2) represents the probability of event E2 occurring.

P(E1 ∩ E2) represents the probability of both events E1 and E2 occurring simultaneously.

By adding the probabilities of each individual event and then subtracting the probability of their intersection, you're accounting for the possibility of double-counting the intersection when adding the probabilities of the individual events.

So, the formula accurately captures the probability of at least one of the two events occurring.

Hence, P(E1) + P(E2) - P(E1 ∩ E2) is the probability that at least one of the two events occurs in any trial of the experiment.

The correct answer is D. P(E1) + P(E2) - P(E1 ∩ E2).

#SPJ12

complete question:

Two events, E1 and E2, are defined for a random experiment. What is the probability that at least one of the two events occurs in any trial of the experiment?

A.

P(E1) + P(E2) − 2P(E1 ∩ E2)

B.

P(E1) + P(E2) + P(E1 ∩ E2)

C.

P(E1) − P(E2) − P(E1 ∩ E2)

D.

P(E1) + P(E2) − P(E1 ∩ E2)

Answer:

Nominal decisions can be broken into two distinct categories: dichotomous decisions and polychotomous decisions.

Answer:

the amount of each deposit is $45,555

Step-by-step explanation:

The computation of the each deposit is shown below:

Given that

Future value be $20,000

Time period = 15 × 2 = 30

And, the rate = 5% ÷ 2 = 2.5%

Now the formula is as follows

= (Future value × rate of interest) ÷ (1 + rate of interest)^time period - 1

= ($20,000 × 2.5) ÷ (1 + 0.025)^30 - 1

= $50,000 ÷ 1.0975675791

= $45,555

Hence, the amount of each deposit is $45,555