Complete the square. x² +14 x+ ____

Answers

Answer 1

 The complete expression of the given quadratic function is:

x² + 14x + 49

What is an algebraic expression?

   An algebraic expression is a set of numbers and letters that make up an expression that has a meaning, the letters are variables and the numbers are coefficients or independent terms, algebraic expressions can be part of an equation and model mathematical processes.

   To solve this problem we must complete square in the expression, it is necessary to note that perfect square trinomial has the form of:

(a + b)² = a² + 2ab + b²

x² + 14x + ?

where:

x² = a²14x = 2abb = ?

Substitute and find b

14x = 2xb

2b = 14

b = 7

   Let's complete the square

x² + 14x + 7²

x² + 14x + 49  

Learn more about algebraic expression in:

brainly.com/question/21856579

#SPJ4


Related Questions

A city has 73,400 voters. According to a survey, 96% of them will vote to support a local measure. How many people will vote
for this measure?

Answers

Answer: 70,464 people

Step-by-step explanation:

         We will write an equation to help us solve. Note that a percent divided by 100 becomes a decimal and that "of" means multiplication in mathematics. Let x be the number of people who will support the measure.

96% of 73,400 voters will support the local measure.

(0.96)(73,400) = x

70,464 people = x

does someone mind helping me with this? Thank you!

Answers

Answer:

32

Step-by-step explanation:

Sorry for not neat explanation but i hope u understand

Answer:

32?

Step-by-step explanation:

when i did it with a Pythagorean theorem calculator i got 32


Evaluate each function for the given value of x , and write the input x and output f(x) as an ordered pair.
f(x) = (2/9)x - (9/2) for x=9

Answers

f (9) =  - 5/2 is the output for the given input .

How can you tell whether a function is linear or not?

Looking at a function's graph will reveal if it is linear or not with the greatest ease.When a linear function is plotted on a graph, a straight line is formed. A nonlinear function is curved in some way; it does not form a straight line.

f(x)= (2/9)x - (9/2)

Put x = 9    ⇒   (2/9) * 9 - (9/2)

                ⇒   2 - 9/2

                ⇒  -5/2

Therefore f (9) =  - 5/2

Learn more about linear function

brainly.com/question/14695009

#SPJ4

Caroline rewrote a quadratic equation in vertex form by completing the square, but her work has errors.
f(x)
-2x² + 12x15
-2(x² - 6x) — 15
-2(x² - 6x + 9) - 9 - 15
-2(x - 3)²9 - 15
-2(x - 3)² - 24
Identify the first error in her work.

Answers

The required error in Caroline's quadratic equation in vertex form by completing the square is -2(x² - 6x + 9) - 9 - 15 is should be -18 in place of -9.

Given that,
To figure out the error made by Caroline in the calculation of a quadratic equation in vertex form by completing the square.

His calculation,
= -2x² + 12x - 15

= -2(x² - 6x) — 15

= -2(x² - 6x + 9) - 9 - 15-2(x - 3)²9 - 15
= -2(x - 3)² - 24


Correct calculation,
= -2x² + 12x - 15
= -2(x² - 6x) - 15

= -2(x² - 6x + 9) - 18 - 15
= -2(x - 3)² - 18 - 15
= -2(x - 3)² - 33

Thus, the required error in Caroline's quadratic equation in vertex form by completing the square is -2(x² - 6x + 9) - 9 - 15 is should be -18 in place of -9.

Learn more about simplification here:
https://brainly.com/question/12501526

#SPJ1


please help!!!!!!!!!!!!!! show your work and try to have the right answer

Answers

Answer:

Step-by-step explanation:


Use your results from Exercise 13 to determine whether the given measures define 0,1, 2, or infinitely many obtuse triangles. Justify your answers.
a=13, b=17, m

Answers

When two sides are provided without an angle measurement, such as a = 13m and b = 17m , we can create an infinite number of obtuse triangles.

As an example:

How many different obtuse triangles can we make if our side lengths are 13m and 17m, and our angle value ranges from 90 to 360 degrees?

Make a triangle with sides of 13m and 17m metres, a 120 degree angle, and a third side that can be protractored to the length you desire. You've constructed a triangle.

We may create a whole different triangle that is identical to this one by altering the third side's length and angle.

You must always remember to select the side lengths and angles. It's hinted that you could choose another course of action. There are an infinite amount of distinct triangles that can be created by using the same angles.

Thus, we can make an infinite number of triangles by employing a single angle and a single side length.

To learn more about, Triangles here

brainly.com/question/2773823

#SPJ4

Find the area


(Simplify your answer)

Answers

Answer:

why isnt there a backround base? it wouldnt be area if isnt so

Step-by-step explanation:

The area is 960 m

because 48*15=720

and 10*24=240

720+240= 960

Points P, Q, R, and S are collinear Point Q is between P and R, R is between Q and S, and PQ congruent RS. If PS=23 and PR= 18, what is the value of QR?

Answers

The value of QR when points P, Q, R and S are collinear is .13

We are given that:

Points P, Q, R and S are collinear points.

Also,

PS = 23

PR = 18

We need to find the value for QR.

Now, we have that PQ is congruent to RS.

So, This means that PQ = RS

This can also be written as:

PR - QR = RS

18 - QR = RS

Also,

PR + RS = PS

Substituting the values, we get that:

18 + ( 18 - QR ) = 23

18 - QR = 23 - 18

18 - QR = 5

QR = 18 - 5

QR = 13

Therefore, we get that, the value of QR when points P, Q, R and S are collinear is .13

Learn more about collinearity here:

https://brainly.com/question/1655368

#SPJ9

please help
please good graph​

Answers

You can see the graphs in the attached image. The order is the same as on page. Note that 7. and 8. give us an infinite number of solutions, and no solutions, respectively.


Is the distance from the center of a circle to a point in the interior of a circle sometimes, always, or never less than the radius of the circle? Explain.

Answers

The distance from the center of a circle to a point in the interior of a circle is always less than radius of the circle.

It is given that there is a point inside the circle.

We have to find that whether its distance from center of circle is sometimes, always, or never less than the radius of the circle.

What is the radius of a circle ?

The distance between the center of a circle and any point on the circle is called the radius of circle.

We know that ;

Radius is the distance between the center of a circle and any point on the circle.

Let's assume three points which are A, B, and C, where A is a point inside circle, B is a point on circle, and C is a point outside circle.

Also ;

O is the center of circle.

So ;

OA = the length of the line from center to point inside the circle.

OB = radius of the circle.

OC = the length of the line from center to the point outside the circle.

So ;

We can conclude that ;

OA<OB<OC.

or

The length of the line from the center of a circle to any point inside the circle will be always less than it's radius.

Thus , the distance from the center of a circle to a point in the interior of a circle is always less than radius of the circle.

To learn more about circle click here ;

https://brainly.com/question/28179860

#SPJ4


State whether each sentence is true or false. If false, replace the underlined word or phrase to make a true sentence.
An equilateral triangle is always equiangular.

Answers

The given sentence about equilateral triangle is true.

A statement is given in the question.

We have to tell whether the statement is true or false.

What is an equilateral triangle ?

An equilateral triangle is a triangle in which all sides and all angles are equal.

As per the question ;

The statement given is , "An equilateral triangle is always equiangular."

Let's check whether it is true or false ;

We know that ,

Equiangular meant equal angles and we know that all the angles of equilateral triangle are equal.

Also ;

An equilateral triangle can also said as an isosceles triangle, that meant any two sides that are equal have equal opposite angles.

So ;

All three sides of an equilateral triangle are equal, all three angles are equal, too. We can conclude that every equilateral triangle is also equiangular.

Thus , the given statement about equilateral triangle is true.

To learn more about equilateral triangles click here ;

https://brainly.com/question/22762684

#SPJ4

determine whether the following graph represents a function

1. one to one function
2. Not a function
3. Function, but not one to one

Answers

Answer:

3. function, but not one to one

Step-by-step explanation:

If you do a vertical line test anywhere you draw a vertical line will only hit in one spot

If you do a horizontal line test to check If the line is one to one it hits in multiple spots therefore the line that is graphed is a function but not one to one

find the value of each expression

16.2 + (-8.4) =

2/5 - 3/5 =

-9.2 - 7 =

(-4 3/8) - (-1 1/4) =

WILL GIVE OUT BRAINLIEST !

Answers

Answer:

1. 7.8

2. -1/5

3. -16.2

4. -25/8

Step-by-step explanation:

-

Answer:

7.8

-0.2

-16.2

-3.125

I really hope it helps

ps: from ultra instinct Giga Chad

when slolved please show steps.

Answers

The expression for h in the information illustrated will be h = 2r.

How to illustrate the information?

It should be noted that the expression is given as:

2πr³ = πr²h

In this situation, the information is that we should make h the subject of the formula.

This will be:

2πr³ = πr²h

Divide both side by πr²

2πr³/πr² = πr²h/πr²

2r = h

Therefore h = 2r

Learn more about expressions on:

brainly.com/question/25968875

#SPJ1

Ana has 8 stamps. Together, Ricky and ana have 23 stamps. The equation 23 = r + 8 represents this situation,where r is the number of stamps Ricky has. Solve the equation to find the number of stamps ricky has

Answers

Ricky has the number of stamps in the number of 15 stamps.

According to the question, the given parameters can be used to form the expression by using simplification method and the parameters are as follows:

Stamps for Ana: 8

Stamps for Ricky and Ana: 23

Given equation: 23 = r + 8

The equation formed by the simplification method is:  r + a = 23

Solving above two equations, we get a = 8 stamps and r = 15 stamps.

Hence, Ricky has the number of stamps in the number of 15 stamps.

What is simplification?

The word simplification is the procedure in which complicated expression can be written in a simpler form to make the calculation easy. This method is used to calculated the answers for the unknown quantity.

To learn more about the simplification in fraction from the given link:

brainly.com/question/432678

#SPJ1

Points that are on the same line are collinear. Use the definition of slope to determine whether the given points are collinear.Prove that the triangle with vertices (3,5),(-2,6) , and (1,3) is a right triangle.

Answers

Using the definition of slope, the triangle with vertices (3 , 5), (-2 , 6), and (1 , 3) is a right triangle.

The slope, m, determines the steepness of a line. It can be measured by the vertical distance from one point to another divided by the horizontal distance of the same points.

m = (y2 - y1)/(x2 - x1)

To prove that the triangle with vertices (3 , 5), (-2 , 6), and (1 , 3) is a right triangle, there should be a pair of adjacent lines perpendicular with each other(forms 90 degree angle). The slope of this pair of adjacent lines must be negative reciprocal of one another.

let A = (3 , 5)

B = (-2 , 6)

C = (1 , 3)

Determine the slope of each line of the triangle: AB, BC, AC.

AB : m = (6 - 5)/(-2 - 3) = 1/-5 = -1/5

BC : m = (3 - 6)/(1 - -2) = -3/3 = -1

AC : m = (3 - 5)/(1 - 3) = -2/-2 = 1

-1 is the negative reciprocal of 1. The slope of BC is the negative reciprocal of the slope of AC, hence, side BC is perpendicular with each other.

Therefore, the triangle with vertices (3 , 5), (-2 , 6), and (1 , 3) is a right triangle.

Learn more about slope here: brainly.com/question/16949303

#SPJ4

Natalie works as a playground supervisor for 8 weeks during the summer at a rate of
$15.27/h. She works a 40-hour week but averages 3 hours of overtime each week,
paid at time and a half. How much will she earn each week, and for the whole
summer?

Answers

Natalie will be paid $656.61 for a week and for summer $10505.76.

What is an expression?

The mathematical expression is the combination of numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.

Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also be used to denote the logical syntax's operation order and other properties.

Given that Natalie earns $15.27 per hour while working as a playground supervisor for 8 weeks throughout the summer. Although she works a 40-hour week, she typically puts in 3 hours of overtime.

For a week = ( 40 + 3 ) x 15.27 = $656.61

For a summer = 4 x 4 = 16 weeks

For a summer = 16 x $656.61 = $10505.76

Therefore, Natalie will be paid $656.61 for a week and for summer $10505.76.

To know more about an expression follow

https://brainly.com/question/19559844

#SPJ1

Write the equation of the line that is perpendicular to x + 4y = 12 and passes through the point (-8, 5) in slope-intercept form.
y = mx + b

m=
b=​

Answers

The equation of the line is: y = 4x + 37

m = 4

b = 37

How to Write the Equation of a Line in Slope-intercept Form?

The equation of the line that is perpendicular to x + 4y = 12, will have a slope that is the negative reciprocal of the its slope.

Rewrite the equation, x + 4y = 12 in slope-intercept form:

4y = -x + 12

y = -x/4 + 3

The slope is -1/4. Therefore, the slope of the perpendicular line would be 4.

Substitute m = 4 and (a, b) = (-8, 5) into y - b = m(x - a)

y - 5 = 4(x - (-8))

y - 5 = 4x + 32

y = 4x + 32 + 5

y = 4x + 37

The equation of the line is: y = 4x + 37

m = 4

b = 37

Learn more about the equation of a line on:

https://brainly.com/question/13763238

#SPJ1

The length of a bacterial cell is about 4 x 10−6 m, and the length of an amoeba cell is about 2.5 x 10−4 m. How many times smaller is the bacterial cell than the amoeba cell? Write the final answer in scientific notation with the correct number of significant digits.

6.25 x 102
2 x 102
6 x 101
16 x 101

Answers

the bacterial cell is 6.25*10 times smaller than the amoeba cell.

How many times smaller is the bacterial cell than the amoeba cell?

To find how many times smaller is the bacterial cell than the amoeba cell, we need to take the quotient between the amoeba cell's length and the  bacterial cell's length

We know that:

bacterial cell's length = 4*10^(-6) m

amoebas cell's length. = 2.5*10^(-4) m

The quotient gives:

Q = ( 2.5*10^(-4) m)/(4*10^(-6) m) = (2.5/4)*(10^(-4)*10^6) = 0.625*10^(-4 + 6)

Q = 0.625*10^2

Now we want this in scientific notation, so we need to have a digit in the left fo the decimal point, so we can rewrite this as:

Q = 0.625*10^2 = 6.25*10^1 = 6.25*10

Then the bacterial cell is 6.25*10 times smaller than the amoeba cell.

If you want to learn more about scientific notation:

https://brainly.com/question/5756316

#SPJ1

Given g(x)=-2x^(2)+1, find the indicated values. g(0)

Answers

Answer:

[tex]g(x) = 2 {x}^{2} + 1 \\ g(0) = 2 ({0})^{2} + 1 \\ = 2(0) + 1 \\ = 1[/tex]

m ebd = 29 bc bisects abd and be bisects cbd find m abc

Answers

We can conclude that in the question, angle m∠ABC = 58°.

What are angles?When two straight lines or rays intersect at a common endpoint, an angle is formed. An angle's vertex is the common point of contact. Angle is derived from the Latin word angulus, which means "corner." Angles in geometry are classified according to their measurement. Acute angle, Obtuse angle, Right angle, Straight angle, reflex angle, and full rotation are the names of basic angles.

So,

∠EBD is 29° and line EB bisects ∠CBD.

Then, ∠CBD = ∠CBE + ∠EBD∠CBD = 29 + 29 = 58°

Similarly, ∠CBD = 58° and line CB bisects ∠ABD

Then, ∠ABD = ∠ABC + ∠CBD ∠ABD = 58 + 58 = 116°

Hence, ∠ABC = 58° as ∠CBD is also 58° because common line BC bisects the angle ∠ABD.

Therefore, angle m ∠ABD = 58°.

Know more about angles here:

https://brainly.com/question/25716982

#SPJ9

Which expression has a value of -5?
A: (-3) -8
B: (-8) - (-3)
C:(-3) - (-8)
D: 8-(-3)

Answers

Answer is B: (-8) - (-3)

Reason

When subtracting a negative, we know two negatives become a positive

-8
+3
____
-5


Determine whether each infinite geometric series diverges or converges.
If the series converges, state the sum. 4+2+1+ . . . .

Answers

Determine whether each infinite geometric series diverges or converges.

The series converges.

If the series converges, state the sum. 4+2+1+ . . .

The sum of the infinite series is 8

What is the sum of the infinite series?

Given:

[tex]a(\text{ the first term})=4\\\\r(\text{ the common ratio})= \frac{a_2}{a_1} = \frac{2}{4}=\frac{1}{2}[/tex]

Since , [tex]\vert r\vert < 1[/tex]  , the  infinite series converges.  

The sum of infinite geometric series is:

[tex]S_\infty=\frac{a}{1-r} ; -1 < r < 1\\\\S_\infty=\frac{4}{1-\frac{1}{2} } =\frac{4}{\frac{1}{2} }=8[/tex]

The sum of the infinite series is 8

What is an infinite geometric series?

The result of an endless geometric sequence is an infinite geometric series.There would be no conclusion to this series.The total of all finite geometric series can be determined.However, if the common ratio of an infinite geometric series is bigger than one, the terms in the sequence will grow steadily larger, and adding the larger numbers together will not yield a solution.

To learn more about infinite geometric series, refer:

brainly.com/question/27350852

#SPJ4

Jared has completed a controlled scientific experiment in which he found a strong
positive correlation between hours of daylight and pea plant growth. He calculates that
the correlation coefficient is 0.93. Does Jared's experiment suggest that sunlight causes
pea plant growth? Why or why not?
OYes; if the correlation coefficient is close to 1, then there is a cause-and-effect relationship.
Yes; finding a strong correlation in a controlled scientific experiment suggests a cause-and-effect
relationship.
O No; cause-and-effect relationships always have a correlation coefficient of 1 or -1.
No; cause-and-effect relationships can be established only by collecting observations from
nature, not from a controlled experiment.

Answers

In Jared's experiment, we can conclude that; No, cause-and-effect relationships can be established only by collecting observations from

nature, not from a controlled experiment.

How to Interpret Correlation Coefficient?

The correlation coefficient is simply the specific measure that quantifies the strength of the linear relationship between two variables in a correlation analysis. It varies from -1 to 1.

Now, we are told that the correlation coefficient is 0.93. This means that it is close to 1. Now, we know that when the correlation coefficient is near 1 or −1, the linear relationship is strong; when it is near 0, the linear relationship is weak.

We also know that correlational studies allow researchers to detect the presence and strength of a relationship between variables, while experimental studies allow researchers to look for cause and effect relationships.

Thus, in Jared's experiment, we can conclude that; No, sunlight doesn't cause pea plant growth because  cause-and-effect relationships can be established only by collecting observations from

nature, not from a controlled experiment.

Read more about Correlation Coefficient at; https://brainly.com/question/28196194

#SPJ1

Simplify the expression. Write your answers using integers or improper fractions.

− 3/2(1/2 n+2n−3)+4n

Answers

The expression is simplified to n - 16/ 4

What are algebraic expressions?

Algebraic expressions are expressions comprising of terms, variables, factors, constants and coefficients.

They are also made up of mathematical operations such as addition, subtraction, multiplication, division, bracket, etc.

Given the expression;

− 3/2(1/2 n+2n−3)+4n

Solve the variables in the bracket, we have;

- 3/ 2 {   n + 4n - 6 / 2} + 4n

-3/2 { 5n - 6/ 2 } + 4n

expand the bracket

- 15n - 18/ 4 + 4n

Fin the LCM

-15n - 16 + 16n  /4

n - 16/ 4

Thus, the expression is simplified to n - 16/ 4

Learn more about algebraic expressions here:

https://brainly.com/question/4541471

#SPJ1

Help Please
A woman has a total of $9,000to invest. She invests part of the money in an account that pays 7%per year and the rest in an account that pays 9%per year. If the interest earned in the first year is $710, how much did she invest in each account? She invested $ ____at 7%and $_____at 9%.

Answers

Answer:

5000.00 gives us 350

4000.00 gives us 360

Solve by completing the square. Express answer in a simplified radical form when possible. When not possible, round to nearest hundredth.
x^2+6x+2=0

Answers

Answer:

[tex]{ \tt{ {x}^{2} + 6x + 2 = 0}} \\ { \tt{ {x}^{2} + 6x = - 2 }}[/tex]

- Add the square of the half of the sum on either sides:

[tex]{ \tt{ {x}^{2} + 6x + ( { \frac{6}{2}) }^{2} = - 2 + {( \frac{6}{2}) }^{2} }} \\ \\ { \tt{ {x}^{2} + 6x + 9 = - 2 + 9}} \\ { \tt{ {(x + 3)}^{2} = 7}} \\ { \tt{x + 3 = \sqrt{7} }} \\ { \tt{x = - 3 \pm2.648}} \\ { \tt{x = ( - 3 \pm \sqrt{7} )}}[/tex]

help please
The cost of having a window fixed is $125 plus $25 per hour of labor. Using h for the number of hours of labor, write an expression that represents the total cost.
25 + 125h
125 + 25h
150h
125+25 over h

Answers

I believe the answer would be Y=125+25(h

Answer: 125 + 25h

Step-by-step explanation:

The total amount of money is the cost of the window plus the amount of hours.

From 125 yards away, a marksman hit 55.6 of the targets last year.

Answers

From 125 yards, a marksman hit 55.6 of the targets last year, which is equal to (55.6 × 100)% that is 5560%

What is percentage?

A percentage (from Latin: per centum, "by a hundred") is a number or ratio stated as a fraction of 100 in mathematics. The abbreviations "pct.", "pct.", and occasionally "pc" are also used to indicate it, while the percent symbol, "%," is most frequently employed. A percentage is a dimensionless (pure) number; it does not have a unit of measurement.

A percentage is a fraction or a ratio in which the full number is always 100. For example, if Sam received 30% on his arithmetic test, he received 30 points out of a possible 100. It is written as 30/100 in fraction form and 30:100 in ratio form.

Learn more about percentage

https://brainly.com/question/24304697

#SPJ1

Full question

Rewrite the decimal in the sentence below as a percentage.

From 125 yards away, a marksman hit 55.6 of the targets last year.

Write equations for the horizontal and vertical lines passing through the point (1,8)

Answers

Answer:

Vertical: x = 1

Horiz: y = 8

Step-by-step explanation:

The equation of a

vertical line is always:

x = anumber

The equation of a horizontal line is in the form:

y = anumber

In the question a point is given, the point (1,8) is in the form (x,y) So x is 1 and y is 8.

We can fill in this given information to complete the equations.

Vertical: x = 1

Horizontal: y = 8

Other Questions
How did Eurasian empires grow over time, andhow did their expansion influence trade andcommunication? How should I write an email to my teachers telling them I was exposed to covid and wont be going to class,also if theres any important work Ill miss whats the measure of angle CEB? What format of electronic health record allows you to see a snapshot of the patient's history all on one screen? HELP! This is due in a few hours!Sociology!Suppose you work at a museum that displays this photograph, which was taken by Jacob Riis in New York City in the early 1900s. You are asked to write three different one-paragraph descriptions of the photograph for three separate museum brochures.1) For the first brochure, describe the photograph objectively in one paragraph that includes at least three details.2) For the second brochure, describe the photograph in terms of interpretive sociology using what Max Weber called Verstehen.3) For the third brochure, describe the photograph in terms of what it shows about the power of society to shape individual lives and indicate what public policy point the photographer was probably making in this photograph. Westward Expansion. Use the crisis that led to the Missouri Compromise to explain how westward expansion made sectionalism worse Dan is saving money to buy a game. So far he has saved $12, which is two-thirds of the total cost of the game. How much does the game cost? Question 5 (2 points)Natalie wants to make sure she has enough in her account to go out to dinner with her friends. When she views her online bank statement, hercurrent available balance is not showing. This is what she can see:Current posted balance: $87.73Pending withdrawals/debits: $97.68Pending deposits/credits: $126.02Available balance:What is Natalie's current available balance?Answer: $Blank 1: The principle of ________ gives the federal government the power to override any state or local law in one particular area of policy. What is the slope of the function? pls answer The activation energy of a reaction is 133.5 kj, and frequency factor (a) is 8.23 x 1010 sec -1, at what temperature (in celsius) is the rate constant equal to 0.08857 sec-1? Find the value of x for the given values of a and b . b=3 x+4 a , for a=-9 and b=12 ch of the following were precedents that George Washington set during his presidency?ct all that apply.OHe established a judicial system of nine justices that is still in place today.OHe chose well-known leaders to run his executive departments and serve as his advisors.OHe established a Tax and Tariff cabinet position.He chose to not run for a third term.the flow in the act passed by Congress that established a tax on whicken?(2 points)point) Teachers say writing in an essay You and Your is informal. I always write them so lesson learned. What are other ways to say you and your that is formal? Describe at least TWO moral or ethical lessons taught by the story of Daedalus and Icarus.Thanks in advance!! does 500 C.E come before or after 50 C.E? Various forms of bacteria Pupils Per Teacher The frequency distribution shows the average number of pupils per teacher in some states of the United States. Find the variance and standard deviation for the data. Round your answers to one decimal place. Class limits Frequency 1113 1 1416 16 1719 11 2022 7 2325 1 2628 2 May I please get some help on my math question show that the value of cos30 degrees x tan60 degrees + sin30 degrees is an integer