5. An isosceles triangle is shown below with side lengths of 12 and a base length of 20. If a line segment AD is drawn from A to side BC such that D lies on BC and AD 1 BC then find the length of AD in simplest radical form.

Answers

Answer 1

Answer:

AD = 16

Step-by-step explanation:

Using the Pythagorean Theorem:

A2 + D2 = C2

122 + D2 = 202

144 + D2 = 400

D2 = 256

D = 256 = 16


Related Questions

An electrician need to run a cable from the top of a 68-foot tower to a tranmitter box located 51 feet away from the bae of the tower. Fidn how long he hould cut the cable

Answers

By using Pythagoras' theorem the required length of the cable  is 85 feets.

What is Pythagoras' theorem?

The square of the hypotenuse side in a right-angled triangle is equal to the sum of the squares of the other two sides, according to Pythagoras' theorem. Perpendicular, Base, and Hypotenuse are the names given to the triangle's sides. The hypotenuse is the longest side in this case because it is opposite the angle of 90°.

What is the name of Pythagoras' formula?

The Pythagorean theorem states that the square of the length of the hypotenuse is equal to the sum of the squares of the lengths of the other two sides of a right-angled triangle. Alternatively, the sum of the squares of a right triangle's two legs equals the square of its hypotenuse.

Given:

Height of the tower = 68 feet = perpendicular

distance of box form tower = 51 feet = base

Let's assume lenght of the cable = L = hypotenous

Acoording to the question by using Pythagoras' theorem,

[tex]hyp^{2}= perpendicular^{2} +base^{2} \\(L)^2 = (68)^2 + (51)^2\\L^2 = 4624 + 2601\\L^2 = 7225\\L =\sqrt{7225}\\L = 85 feet[/tex]

Hence by using Pythagoras' theorem the required length of the cable  is 85 feets.

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Find the surface area of that part of the plane 10x+7y+z=4 that lies inside the elliptic cylinder x^2/25+y^2/9=1

Answers

The surface area of that part of the plane 10x+7y+z=4 inside the elliptic cylinder x^2/25+y^2/9=1 is equal to πab, where a=5 and b=3. Therefore, the surface area is equal to 45π.

How can you calculate a surface area?

Total area on a three-dimensional shape's surface is known as surface area. The surface area of a cuboid with six rectangular faces can be calculated by adding the areas of each face. Alternatively, you can write down the cuboid's length, width, and height and use the formula surface area (SA)=2lw+2lh+2hw.

Why does surface area have a formula?

The general formula for a cube's surface area is as follows: The area of the base plus the area of the cube's vertical surfaces will add up to the cube's total surface area. The cube's total surface area is calculated using the formula 6a2, where an is the side length.

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How do you graph a rational function on a graphing calculator?

Answers

To graph a rational function on a graphing calculator, enter the equation into the Y= editor, then press the graph button. The calculator will display the graph of the rational function.

1. Enter the equation for the rational function into the Y= editor of your graphing calculator. Be sure to include all terms, coefficients, and operators.

2. Press the graph button. This will tell the calculator to generate the graph of the equation.

3. The calculator will display the graph of the rational function, including any asymptotes, zeroes, and intercepts.

4. Adjust the window settings as desired to get a better view of the graph. This can be done by pressing the WINDOW button, then setting the appropriate Xmin, Xmax, Ymin, and Ymax values.

5. Press the GRAPH button again to view the adjusted graph.

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[(8 x 10-3) x (0.0002)

Answers

Answer:

Step-by-step explanation:

0.0154, I think, I apologize if this is wrong.

What is closure under addition Give 2 example?

Answers

The closure property of addition states that the sum of two whole numbers will always be a whole number.

A whole number is a set of all positive integers from 0 to infinity.  Now we all know that if we add two positive numbers up, the sum will either remain constant (if the number is 0) or be greater than both numbers. This means that the sum of two whole numbers has to be a whole number.

Example 1 If we add 0 and 45

0 + 45

= 45

We already know that 45 is a whole number.

Example 2- If we add 486 and 354

486 + 354

= 840

From the definition, we can say that 840 is a whole number.

This is the closure property.

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How do you find the remainder when a polynomial in x is divided by a binomial of the form XR?

Answers

There are two ways to find the remainder when a polynomial in x is divided by a binomial of the form x-r, the use of synthetic division or calculate P(r).

Synthetic division

The Synthetic division is a shortcut way of polynomial division, especially if we need to divide it by a linear factor. It is generally used to find out the zeroes or roots of polynomials and not for the division of factors.

Polynomial

A polynomial is defined as an expression which is composed of variables, constants and exponents, that are combined using mathematical operations such as addition, subtraction, multiplication and division.

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Write the negation of each quantified tatement. 3. Everyone failed the quiz today

Answers

The negation of the given statement " Everyone failed the quiz today " is given by " No one failed the quiz today."

As given in the question,

Given statement is written as:

S : Everyone failed the quiz today.

Negation of the given statement represent the conversion of true statement into false statement or conversion of false statement into true statement.

Here given statement is true statement.

Convert the given statement into false statement.

So Negation of statement S is represented by ~ S.

~S : No one failed the quiz today.

Therefore, the negation of the given statement is equal to " No one failed the quiz today".

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A student concluded that 8x−12=4(12x−6) has infinitely many solutions. Which statement best describes the student’s conclusion? Responses The conclusion is incorrect because the equation has no solution. The conclusion is incorrect because the equation has no solution. The conclusion is incorrect because there is exactly one solution to the equation. The conclusion is incorrect because there is exactly one solution to the equation. The conclusion is correct because there are exactly two solutions to the equation. The conclusion is correct because there are exactly two solutions to the equation. The conclusion is correct because when simplified, both sides of the equation are equivalent. The conclusion is correct because when simplified, both sides of the equation are equivalent.

Answers

Answer:

The conclusion is incorrect because there is exactly one solution to the equation.

Step-by-step explanation:

8x - 12 = 4(12x - 6)

4 x 12x = 48x    4 x -6 = -24

8x - 12 = 48x - 24

Move the terms

8x - 12 - 48x = -24

Move the constant to the right-hand side and change its sign

8x - 48x = -24 + 12

-40x = -24 + 12

-40x = -12

Divide both sides by -40

40x  =  -12

40    =   40

x = [tex]\frac{3}{10}[/tex]  or, alternate form, x = 0.3

find the value of x.

Answers

Answer: 7

Step-by-step explanation:

What is a perpendicular line to Y =- 4x 7?

Answers

The original equation is in slope-intercept form, which is y = mx + b, where m is the slope and b is the y-intercept. A perpendicular line to Y = -4x + 7 would be Y = 4x + 7.

To find the equation of a line perpendicular to Y = -4x + 7, we need to switch the x and y variables and then change the sign of the slope.

The original equation is in slope-intercept form, which is y = mx + b, where m is the slope and b is the y-intercept.

Since the original equation has a slope of -4, the perpendicular line will have a slope of 4.

Therefore, the equation for the perpendicular line is y = 4x + b.

We can find the y-intercept by plugging in a point from the original equation.

For example, if we plug in (0,7), we get 7 = -4(0) + b, or b = 7.

Therefore, the equation for the perpendicular line is y = 4x + 7.

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a manufacturer wishes to set a standard time required by employees to complete a certain process. times from 21 employees have a mean of 6 hours and a standard deviation of 2 hours. test if the mean processing time exceeds 5.5 hours. what is the -value of the test (round off to second decimal place)? assume normal population.

Answers

The -value of the test is 1.90. This indicates that the mean processing time is significantly greater than 5.5 hours, supporting the manufacturer's desire to set a standard time required by employees to complete a certain process

The t-value will be equal to 1.39 for the given statistics.

How to calculate the t-value?

To test if the mean processing time exceeds 5.5 hours, we can use a one-sample t-test.

The null hypothesis is that the mean processing time is less than or equal to 5.5 hours:

H0: µ ≤ 5.5

The alternative hypothesis is that the mean processing time is greater than 5.5 hours:

Ha: µ > 5.5

We will use a significance level of 0.05.

The formula for the t-test statistic is:

t = (X - µ) / (s / √n)

Where:

X = sample mean

µ = hypothesized population mean

s = sample standard deviation

n = sample size

Substituting the given values, we get:

t = (6 - 5.5) / (2 / √21) = 1.386

The degree of freedom for the t-test is n-1 = 20.

Using a t-table or calculator, the p-value associated with a t-value of 1.386 and 20 degrees of freedom is 0.093.

Since the p-value (0.093) is greater than the significance level (0.05), we fail to reject the null hypothesis. Therefore, there is not enough evidence to suggest that the mean processing time exceeds 5.5 hours.

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The pheasant population on an island is declining at a rate of 1. 7% per year. The population was 4600 in the year 2009. Which answer is the best prediction of the population in the year 2015? responses 4010 4010 4080 4080 4120 4120 4150.

Answers

The best prediction of the population in the year 2015 will be 4150

rate of decrease involves The rate of reduction expressing a decrease as a percentage of the initial value.To compute a percentage drop, first determine the difference (decrease) between the two values being compared. Then, divide the reduction by the original number and multiply the result by 100.

Given that an island's peasant population is falling at a rate of 1.7% per year,

A 1.7% decrease means that 98.3% will remain.

as a result, decrease = 0.983/year

A(t) = A(original) multiplied by (0.983)^t

As a result, after 6 years, A(6) = 4600 x (0.983)6 = 4150

As a result, the population in 2009 will be 4150.

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Write the algebraic expreion for the number of total hour in y hour and 45 minute

Answers

The algebraic expression for the given statement total number of hours present in y hours and 45 minutes is equal to ( y + 0.75 ) hours.

As given in the question,

Given statement is equal to :

The total number of hours present in y hours and 45 minutes .

Here we have to convert whole equation into hours we have :

1 hour = 60 minutes

⇒ 1 minute = ( 1 / 60 ) hours

⇒ 45 minutes = ( 45 / 60 ) hours

⇒ 45 minutes = 0.75 hours

Algebraic expression for the given statement in hours  is given by :

y hours and 45 minutes

= y hours + 45 minutes

= y hours + 0.75 hours

= ( y + 0.75 ) hours

Therefore, the algebraic expression for the given statement is given by

( y + 0.75 ) hours.

The complete question is:

Write an algebraic expression for the total number of hours in y hours and 45 minutes.

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What two rational expressions sum to 3x−4x2+x−12?
PLEASE HELP URGENTLY!!!!!!

Answers

Answer:

Step-by-step explanation:

g

Step-by-step explanation:

16.            +.        5

__.                    ____
7(x+4).                7 (x-3)

24. Omar is standing 75 feet away from the base of a building. The angle of elevation from the ground where Omar is standing to the top of the building is 24.
(MGSE9-12.G.SRT.8)
Part A: Draw a diagram to represent this situation. (1 point)
25. Jonat backyard daughter garden, sc rectangul:
(MGSE9-12
Part B. Calculate the height of the building to the nearest tenth of a foot?
Explain your process for arriving at the answer.

Answers

a. The diagram that represents this situation is given by the image shown at the end of the answer.

b. The height of the building is of: 33.4 feet.

What are the trigonometric ratios?

The three trigonometric ratios are defined as follows:

Sine of angle = length of opposite side divided by the length of the hypotenuse.Cosine of angle = length of adjacent side divided by the length of the hypotenuse.Tangent of angle = length of opposite side divided by the length of the opposite side.

As shown by the diagram given at the end of the answer, this situation is represented by a right triangle in which:

There is an angle of 24º.The adjacent side to the angle is of 75 feet.The height of the building is of x feet.

Then the height of the building is calculated as follows:

tan(24º) = x/75

x = 75 x tangent of 24 degrees

x = 33.4 feet. -> height of the building.

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Where is the function decreasing?

The function decreases when x is less than –7.

The function decreases when x is greater than –6.

The function decreases when x is between 0 and 4.

The function decreases when x is between –6 and 0.

Answers

The linear function decreases when x is between –6 and 0.

Linear Function

An equation can be represented by a linear function. The standard form for the linear equation is: y= mx+b , for example, y=5x+2. Where:

m= the slope.

b= the constant term that represents the y-intercept.

For the given example: m=5 and b=2.

A function can be classified as:

increasing - when the values of y increase with the increasing of x-values decreasing - when the values of y decrease with the increasing of x-values

From the graph is possible to see that the function decreases when x is between –6 and 0 because the values of y decrease with the increasing of x-values.

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A publiher need to end many book to a local book retailer and will end the book in a combination of mall and large boxe. Each mall box can hold 20 book and each large box can hold 45 book. There were twice a many large boxe ent a mall boxe, which altogether can hold 440 book. Write a ytem of equation that could be ued to determine the number of mall boxe ent and the number of large boxe ent. Define the variable that you ue to write the ytem

Answers

The formula is = 7 and 3. It may be used to calculate the number regular mall boxes as well as the number of big boxes.

Which equation has ever been the hardest?

What is the world's most difficult arithmetic problem? A mathematical conundrum that has baffled mathematicians over decades is finally solved earlier this week. Diophantine Equation, sometimes referred to as the "sum of three cubes," is what it is: Find x, y, & z such that, for any k between 1 and 100, x3+y3+z3=k.

Briefing:

Let x= Number of small boxes , y = Number of large boxes.

As per given , 30x+55y=375 (i)

x+y=10 (ii)

Multiply (ii) by 30, we get

30x+30y=300 (iii)

Eliminate (iii) from (i), we get

25y=75

⇒ y= 3

Put y=3 in (ii), we get

x+3=10 ⇒ x=7

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7w+6 i need help plese

Answers

Answer: 7w + 6

Step-by-step explanation:

Your question was "7w + 6". When we simplify this, we get 7w + 6. So your answer is 7w + 6.

why is an understanding of the central limit theorem essential to the concepts of estimation an hypothesis testing?

Answers

Because it permits one to assume that the sampling distribution of the mean would typically be normally distributed, the central limit theorem is helpful when examining big data sets. This makes statistical analysis and inference simpler.

Hypothesis :

In statistics, hypothesis testing is used to identify the variance in the group of data that results from genuine variation. Based on the presumptions, the sample data are taken from the population parameter. The hypothesis can be divided into many categories. A hypothesis is described in statistics as a formal statement that explains the relationship between two or more variables belonging to the specified population. It aids the researcher in converting the stated issue into an understandable justification for the study's findings. It provides examples of various experimental designs and guides the investigation of the research procedure.

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Is the sum of any two whole numbers always a whole number answer it with at least 3 example?

Answers

Yes, the sum of 2 whole numbers is always a whole number.

Any number that ranges from 0 to infinity with 1 as the denominator in its smallest form is called a whole number.

For example- 0, 3, 78, 9363, etc.

Now if we take up two numbers say 34 and 78.

34 + 78

= 112

According to the definition of the whole number, we can say that this is a whole number.

Another example can be 0 + 237

The sum is 237

which again is a whole number.

The last example can be 2365 + 930

= 3295

This too is a whole number.

Hence the sum of two whole numbers will always be a whole number.

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in a certain country license plates consist of zero or one digit followed by four or five uppercase letters from the roman alphabet. how many different license plates can the country produce?

Answers

118,813,760 different combination license plates can the country produce

Permutations and combinations:

permutations and combinations, the various ways in which objects from a set may be selected, generally without replacement, to form subsets. This selection of subsets is called a permutation when the order of selection is a factor, a combination when order is not a factor. By considering the ratio of the number of desired subsets to the number of all possible subsets for many games of chance in the 17th century, the French mathematicians Blaise Pascal and Pierre de Fermat gave impetus to the development of combinatorics and probability theory.

Given that

In a certain country license plates consist of zero or one digit followed by four or five uppercase letters from the roman alphabet

X = 10 × 26 × 26 × 26 × 26 × 26

  = 10 × 11881376

  = 118,813,760

118,813,760 different combinations license plates can the country produce

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What is meant by 6% slope?

Answers

6% slope means on a run of 100 units, there is just a 6-unit rise. The basic definition of slope is the gradient or incline of the terrain.

A steep slope is an abrupt incline, and a gentle slope is a gradual incline. The river's route flows between the steep, forested hills and their softer counterparts.

This is accomplished by comparing the vertical and horizontal changes, which are frequently stated as rise/run.

Since "percent" or "%" denotes "out of 100" or "per 100," x% can be expressed as

For instance

You can come across a road sign that says "6% Grade" or "Steep Grade" while driving down a highway. The road's grade is essentially its slope, multiplied by 100.

6% thus equals 6/100.

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Rewrite 2x2x2x2 as an exponent.

Answers

The required exponent form is obtained as 2 x 2 x 2 x 2 = 2⁴.

What are the rules of exponents?

Some of the rules of exponents are as follows,

The product of two exponents having the same power is equal to the power of their base multiplied.

The product of two exponents having the same base is equal to the sum of the powers of different exponents to the same base.

The given expression is 2 x 2 x 2 x 2.

It can be written in exponent form as,

2 x 2 x 2 x 2

The number 2 is multiplied to itself by four times,.

Thus, the exponent form is given as 2⁴.

Hence, the exponent form of the given expression is 2⁴.

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5. Marianne has a credit card with a line of credit at $15,000. She made the following purchases:
$1,374.90, $266.21, 39.46, and $903.01. What is Marianne's available credit?

Answers

Answer:

Available credit = $2,416.42

Step-by-step explanation:

$1,374.90

$266.21

39.46

$903.01

Sum = $2,583.58

$2,583.58 was spent. Subtract this from $5,000 to find Marianne's available credit.

$5,000

- $2,583.58

Available credit = $2,416.42

You purchae 200 hare of a tock at a price of $70 per hare. You purchae 200 call option on the
tock with exercie price of $72 and a call premium of $5. 75 per call option. You alo write (ell) 300
put option on the ame tock with exercie price of $68 and put premium of $2,87 per put option. All the option expire on the ame date. Calculate the profit on your entire trategy (portfolio) at the
expiration of the contract if the Stock price at that time i $81. 50. (Aume you ell all your hare
the date that the option expire. )

Answers

On your entire strategy at the expiration of the contract if the stock price at that time is $81.50 then the profit is $2189.

A portfolio is a collection of financial investments like stocks, bonds, commodities, cash and cash equivalents, including closed-end funds and exchange traded funds.

A stock is a security that represents the ownership of a fraction of the issuing corporation. Units of stock are called "shares" which entitles the owner to a proportion of the corporation's assets the owner equal to how much stock they own.

We know that,

Profit on the strategy

        = Profit on the shares + Profit from long calls + Profit from short puts

        = 200(81.50 - 70) + 200(Max(81.50-72,0)-5.75) + 300(-Max(68 - 81.50,0)+2.87)

        = 2300 + 750 - 861

        = 2189

Therefore profit on strategy is $2189.

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531
x 47
Long multiplication :) please help

Answers

The answer to that is 24957

Considerine line y=3/5x+4.
Find the equation of the line that is parallel to this line and passes through the point (-5, -1)

Answers

Answer:

y = 3/5x + 2

Step-by-step explanation:
Parallel lines have the same gradient, so

y = 3/5x + c

Put in your point (-5,-1):

(-1) = 3/5(-5) + c

-1 = -3 + c

-1 + 3 = c

2 = c

So

y = 3/5x + 2

amy spent 60$ on 5 daylilies and 5 bunches of ornamental grass,james spent 78$ on 8 daylilies and 5 bunches of ornamental grass,what is the cost of one daylily and the cost of one bunch of ornamental grass?

Answers

Answer:

both cost the same price of 6 dollars for each

Step-by-step explanation:

we can make a system of equation

d- daylilies

o- ornamental glass

5d+5o=60

8d+5o=78

-8d.      -8d

5o=78-8d

5d+78-8d=60

-3d+78=60

     -78. -78

-3d= -18

/-3.   /-3

d=6

5(6)+5o=60

30+5o=60

-30.      -30

5o=30

/5.  /5

o=6

they both are 6 dollars each

hopes this helps

1 mile = 1.6 kilometers

A car goes 3 miles.

How many kilometers does it go?

Answers

Answer:

4.82803

Step-by-step explanation:

3 x 1.6

There are 8 squares and 10 triangles. What is the simplest ratio of squares to triangles?.

Answers

Answer: 4:5

Step-by-step explanation: The lowest form

Answer:

Step-by-step explanation:

4:5

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