In the diagram below, GH is parallel to DE. If the length of DE is the same as the
length of GF, DF = 13, and GH = 5, find the length of GF. Figures are not
necessarily drawn to scale. State your answer in simplest radical form, if necessary.

In The Diagram Below, GH Is Parallel To DE. If The Length Of DE Is The Same As Thelength Of GF, DF =

Answers

Answer 1

Using the properties of similar triangle and parallel lines we calculate the length of GF as √65 units.

It is given that GH is parallel to DE or GH || DE in the trapezium GHDE .

Therefore in the triangles ΔFDH and ΔFDE , we can say that

ΔFDH is similar to ΔFDE by angle angle angle axiom of similarity.

Now using the properties of similar triangles we can say that :

FG / DF = GH / DE

Now let us consider the length of GF be x.

Therefore DE = x

Now using the properties of similar triangles and substituting the values we get:

x / 13 = 5 / x

or, x² = 65

or, x = √65

Therefore the length of DE and GF is equal to √65.

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Related Questions

At the penalty apr rate of 28. 99% and a balance of about $1800, approximately how much interest would you owe in one month?.

Answers

The interest rate for one month is 2.42% and the interest amount is $40 approximately.

Given,

The penalty APR rate = 28.99%

Balance amount = $1800

We have to find the interest for one month;

Here,

The APR of 28.99% is the yearly interest. To find the monthly rate:

= Rate / 12 months

= 28.99% / 12

= 2.42%

The amount owed is therefore;

= 1,800 x 2.42%

= $43.56

= $40.00 approximately

That is,

The interest rate for one month is 2.42% and the interest amount is $40 approximately.

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Alyssa works 6.4-hour shifts at the donut shop each day. Last week she earned $480 for working 32 hours. Describe the unit rate in this problem.

Answers

The unit rate for this problem is how much Alyssa  earns per hour

What is a unitary method?

A unitary method is a mathematical way of obtaining the value of a single unit and then deriving any no. of given units by multiplying it with the single unit.

Given, Alyssa works 6.4-hour shifts at the donut shop each day.

Last week she earned $480 for working 32 hours.

Now, To determine her earnings per hour we have to divide her total earnings by the total no. of hours she worked which is,

= $(480/32).

= $15 per hour.

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Hallar centro, radio y longitud de los siguientes intervalos
a) [3, 8]
b) [-5,2]
c) [0, 12]
d) [-9,0]

Answers

A continuación, se resume el centro, el radio y la longitud de cada intervalo:

Caso A: Centro: 5.5, Radio: 2.5, Longitud: 5

Caso B: Centro: - 1.5, Radio: 3.5, Longitud: 7

Caso C: Centro: 6, Radio: 6, Longitud: 12

Caso D: Centro: - 4.5, Radio: 4.5, Longitud: 9

¿Cómo hallar el centro, el radio y la longitud de un intervalo?

En este problema tenemos cuatro casos de intervalos de números reales sobre una recta numérica. Los números reales representan un conjunto continuo, no discreto, lo cual significa que existe un número infinito de puntos dentro de la distribución lineal.

El centro es igual al punto medio del intervalo, el radio es la distancia entre el punto medio y cualesquiera de los extremos y la longitud es el doble del radio del intervalo.

Centro:

C = 0.5 · (m + M)

Radio

R = C - m

Longitud

L = 2 · R

Donde:

m - Límite inferior del intervalo.M - Límite superior del intervalo.

A continuación, determinamos el centro, el radio y la longitud de cada intervalo:

Caso A

C = 0.5 · (3 + 8) = 0.5 · 11 = 5.5

R = 5.5 - 3 = 2.5

L = 2 · 2.5 = 5

Caso B

C = 0.5 · [(- 5) + 2] = 0.5 · (- 3) = - 1.5

R = - 1.5 - (- 5) = - 1.5 + 5 = 3.5

L = 2 · 3.5 = 7

Caso C

C = 0.5 · (0 + 12) = 6

R = 6 - 0 = 6

L = 2 · 6 = 12

Caso D

C = 0.5 · [(- 9) + 0] = - 4.5

R = - 4.5 - (- 9) = 4.5

L = 2 · 4.5 = 9

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Is it possible that creating a Boxplot could show outliers but z-scores show no outlier?

Answers

No, Is it not possible that creating a Boxplot could show outliers but z-scores show no outlier. This is because Any z-score that is either higher than +3 or lower than -3 is viewed as an issue.

When there isn't an anomaly, what does that mean?

When you declare a data point to be an outlier and reject it, you are indicating that even if you have already observed the point, it is unlikely to happen again.

Z scores make it easier to determine whether a data value is larger or less than the mean and how far from the mean it is. The Z score precisely indicates the number of standard deviations a data point deviates from the mean.

So, Outliers can be highlighted using scatterplots, histograms, and boxplots. Asterisks or other symbols are displayed on the graph in boxplots to plainly show the presence of outliers in a dataset.

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In order to combine exponents with the multiplication or division properties, the terms must have the same?

Answers

Answer:

To multiply terms containing exponents, the terms must have the same base and/or the same power. To multiply terms with the same base, keep the same base and add the powers together. To multiply terms with different bases but the same power, raise the product of the bases to the power.

Step-by-step explanation:

ANSWER ASAP 8TH GRADE MATH EASY

Answers

Answer:

It is the first option

Step-by-step explanation:

Which is a solution set for |x + 3| = 6?
{-3, 3}
{-9,3}
{-6, 9}

Answers

The values of x in the given equation are x = -9 and x = 3. The solution set is [-9, 3]

Solving for the values of x in an equation

From the question, we are to determine the value of x in the given equation.

The given equation is

|x + 3|= 6

Then, we can write that

x + 3 = 6 and -(x + 3) = 6

Solving the first equation

x + 3 = 6

Subtract 3 from both sides of the equation

x + 3 - 3 = 6 - 3

x = 3

Solving the second equation

-(x + 3) = 6

-x - 3 = 6

Add 3 to both sides of the equation

-x - 3 + 3 = 6 + 3

-x = 9

Multiply both sides of the equation by -1

-1 × -x = -1 × 9

x = -9

Hence, the solutions are x = -9 and x = 3

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Austin is blocking off several rooms in a hotel for guests coming to his wedding. The hotel can reserve small rooms that can hold 2 people, and large rooms that can hold 3 people. Austin booked a total of 22 rooms which can accommodate 53 guests altogether. Determine the number of small rooms reserved and the number of large rooms reserved.

Answers

Answer:

There are 13 small rooms and 9 large rooms reserved.

Step-by-step explanation:

First, we can make a system of equations. We can use s to represent the number of small rooms and l to represent the number of large rooms.

2 guests per small room added to 3 guests per large room equals 53 guests total, so 2s + 3l = 53.

The number of small rooms (s) plus the number of large rooms (l) equals the total number of rooms, so s + l = 22 or s = 22 - l.

We can substitute the first second equation into the first equation.

2 (22 - l) + 3l = 53

44 - 2l + 3l = 53

l = 9

So, the number of large rooms is 9. Then, to find the number of small rooms, we can substitute l into the second equation.

s = 22 - 9

s = 13

So, the number of small rooms is 13.

Find x, y and z. ILL GIVE BRAINLIEST

Answers

Answer:

x = 30

y = 15

z = 150

Step-by-step explanation:

90°, 2x°, and x and supplementary.

Using this knowledge, we can form the equation:

2x° + 90° + x° = 180°

and solve for x.

3x°+ 90° = 180°

3x° = 90°

x° = 30°

x = 30

x and z are same side interior angles. Therefore, they are supplementary.

Using this knowledge, we can form the equation:

x° + z° = 180°

30° + z° = 180°

z° = 150°

z = 150

z° and 2y° are supplementary.

Using this knowledge, we can form the equation:

z° + 2y° = 180°

150° + 2y° = 180°

2y° = 30°

y° = 15°

y = 15

Answer:

I will be waiting for you to mark me brainlest pls

I need it to move to another rank plsssssssssssssssss

Assume that louisa carried an average balance of $1,000 from her credit card purchases over the past year. The a. P. R. On her credit card for the past year was 19. 99%. Approximately how much interest would louisa have paid over the course of the year?.

Answers

It would have cost Louisa $200 in interest charges.

The simple interest amount is calculated as follows;

SI = P*I*t

That is where we have

The balance is P.

The interest rate is I.

The time is t.

Regarding this issue;

Balance of $1,000, 19.99% APR, and 1 year.

She will pay the following sum;

SI = 1000 *0.199*1

SI = 199.9

SI ≅ 200

Louisa would have had to pay $200 in interest fees.

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need help for this question dhsjwiqibdbsns

Answers

Answer:

130°

Step-by-step explanation:

Triangle JKL is an isosceles triangle and leg angles are equal :

m<J = m<L

The sum of interior angles in a triangle is equal to 180.

m<J + m<L + m<K = 180

25 + 25 + m<K = 180

50 + m<K = 180 subtract 50 from both sides

m<K = 130°

a manufacturer of chocolate chips would like to know whether its bag filling machine works correctly at the 400 gram setting. based on a 25 bag sample where the mean is 399 grams and the variance is 400, is there sufficient evidence at the 0.025 level that the bags are underfilled? assume the population distribution is approximately normal. find the value of the test statistic. round your answer to three decimal places.

Answers

Using the t test statistic, the value of the test statistic is 1.25.

In the given question we have to find the value of the test statistic.

A manufacturer of chocolate potato chips would like to know whether its bag filling machine works correctly at the 400 gram setting.

= 400

A 25 bag sample had a mean of 399 grams and the variance is 400.

There is sufficient evidence at the 0.025 level that the bags are underfilled.

Sample size(n) = 25

sample Mean = 399

Sample Variance = 400

Standard Deviation = √Sample Variance

Standard Deviation = √400

Standard Deviation = 20

Population Mean = 400

So , the null and alternative hypothesis are

H0 : μ = 400

Ha : μ < 400

Using the sample t test statistic

t = (Population Mean - Sample Mean)/(Standard Deviation/Sample size)

t = (400 - 399)/(20/25)

t = 1*25/20

t = 1.25

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v - 10 + k³ when v = -2 and k = -3​

Answers

-2 - 10 + (-3)^3

= -12 - 27

= -39

Answer:

-39

Step-by-step explanation:

Substitute v and k

v - 10 + k³

-2 - 10 -3³

Multiply the 3 and the power of thirds together

-2 -10 + 27

Combine like terms

Ms. Fraser’s total monthly cell phone bill this month was
$56.70. Her phone company charges $45.60 for unlimited
minutes and $0.10 for every text message sent.

Answers

Answer:

She sent 111 texts that month

Step-by-step explanation:

Describe the relationship between <1 and <5

Answers

Angles 1 and 5 constitutes one of the pairs

Step-by-step explanation:

the pizza costs £6.40
this is 20% less than the original price.
what was the original price of the pizza?

Answers

Answer:

8

Step-by-step explanation:

Price : %

  [tex]x[/tex]    :  100

 6.4  :  80     (Got 80 by 100 - 20)

Cross multiply

100*6.4 = 80[tex]x[/tex]

640 = 80[tex]x[/tex]

640/80 = [tex]x[/tex]

[tex]x[/tex] = 8

a) Work out (5 × 10³) × (9 × 10')
Give your answer in standard form.
b) Work out (7 × 105) + (2 × 10²)
Give your answer in standard form.

Answers

A: 450,000
B: 935
I HOPE THIS HELPED!!!

what is 0.675 as a percent

Answers

Answer:

67.5

Step-by-step explanation:

Answer:67.5

Step-by-step explanation:0.675*100=67.5

what is 1 divided by [tex]\frac{1}{2}[/tex]?

Answers

2
The answer is 2 because when you divide by a fraction, you flip the fraction and multiply it by the number. So 1(2) divided by 1 is 2
The answer is 2 if if you do 1 divide by 1/2

a random sample of 1000 people was taken. four hundred fifty of the people in the sample favored candidate a. what is the upper limit for a 95% confidence interval for the true proportion of people who favored candidate a? round your answer to three decimal places.

Answers

The 95% confidence interval for the true proportion of people who favored candidate a is 0.419, 0.481

How to calculate confidence interval?

First, calculate sample proportion by divide number people who favored candidate by number of sample. So:
[tex]\pi[/tex] = 450 / 1,000 = 0.45

Then we use the formula for confidence interval

[tex]\pi[/tex] ± [tex]z\sqrt{\frac{\pi (1-\pi )}{n}}[/tex]

In which z is z score that has a p value of [tex]1 - \frac{\alpha }{2}[/tex]

For 95% confidence interval z is the value of Z that has a p value of [tex]1 - \frac{0.05}{2}[/tex] = 0.975, so z = 1.96

After we have [tex]\pi[/tex] value and z value then put it in the formula. So:

= 0.45 ± [tex]1.96\sqrt{\frac{0.45(1-0.45)}{1000} }[/tex]

= 0.45 ± 0.0308

= 0.419, 0.481

Thus, the 95% confidence interval for the true proportion of people who favored candidate a is 0.419, 0.481

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what is the answer to this ​

Answers

-1 39/45

that is the answer

I need help please please

Answers

I believe it is D as when you get the final answer (4) and plug it in you get 39 for both sides of the triangle.

Select the correct answer.
What is the equation of the line that has a slope of 3 and goes through the point (-3,-5)?
A. y = 3x + 4
B. y = 3x − 14
C. y = 3x − 4
D. y = 3x + 12

(It is not y = 3x - 4 OR C)

Answers

y = 3x + 4. It helps to draw out the graph.

i need help pls
PLEASE GIVE ME THE CORRECT ANSWERS FOR ALL 3 PROBLEMS IM BEGGING

Answers

The values of the function when x = 3 are -10. -1 and -3, respectively

The values of the function

Function 1

The equation of the function is given as

y = -4x + 2

We have the value of x to be 3

So, we have

y = -4 x 3 + 2

Evaluate

y = -10

Function 2

The graph represents the notation of the function

On the graph, we have the value of y to be -1, when x = 3

This means that

y = -1

Function 3

The table represents the notation of the function

On the table, we have the value of y to be -3, when x = 3

This means that

y = -3

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100 points if you answer this correctly

Answers

Since triangle P'Q'R' is the result of a transformation of triangle PQR, an algebraic representation which best describes this transformation is: C. (x, y) → (5x/2, 5y/2).

What is a transformation?

In Mathematics, a transformation can be defined as the movement of a point from its original (initial) position to a final (new) location. This ultimately implies that, when an object is transformed, all of its points would be transformed as well.

From the information provided above, we can logically deduce the following coordinates:

Point P = (-1, 1)Point Q = (2, 0)Point R = (-1, -2)Point P' = (-5/2, 5/2)Point Q' = (5, 0)Point R' = (--5/2, -5)

Therefore, the transformation rule is given by:

P (x, y)                      →               P' (x, y)

Point P = (-1, 1)      →  Point P' = ((5/2 × -1), (5/2 × 1)) = Point P' = (-5/2, 5/2).

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Please help me, please

Answers

Answer:

m∠1 = 88°

m∠2 = 42°

m∠3 = 113°

Step-by-step explanation:

All of the angles in a triangle add up to 180°. This knowledge can be used to find angle 3, which I will rename c to make writing an equation easier.

[tex]180=25+42+c\\180=67+c\\113=c[/tex]

Angle 3 is 113°

Two angles on either side of the intersection of two straight lines are equal, therefore angle 2, or b:

[tex]b=42[/tex]

Angle 2 is 42°

Now that two angles are known in the leftmost triangle, we can solve for the last one: Angle 1, or a:

[tex]180=50+42+a\\180=92+a\\88=a[/tex]

Angle 1 is 88°

a manager of a clothing store always orders 2 small T-shirts and 3 large t-shirts for every 4 medium T-shirts.The manager plans to order 24 medium T-shirts. How many small T-shirts and large T-shirts should the manager order? show your work.

Answers

Answer: 12 small t-shirts and 18 large t-shirts

Step-by-step explanation:

24÷4=6

2×6=12 small t-shirts

3×6=18 large t-shirts

What is the formula for Circumcentre?

Answers

There is no definite formula for calculation of circumcenter of a triangle but a process for calculation of circumcenter has been described here.

What is circumcenter of a triangle?

Circumcenter of a triangle is the point of intersection of the perpendicular bisectors of every sides of the triangle.

Let the coordinate of A, B, C [tex]\Delta[/tex] ABC be ([tex]x_1, y_1[/tex]), [tex](x_2, y_2)[/tex] and [tex](x_3, y_3)[/tex] respectively and let the coordinate of circumcenter of [tex]\Delta ABC[/tex] is (x, y)

We need to find the length of AB, BC and AC

The length will be obtained in terms of x and y

On solving the equations, we will obtain the value of x and y

The value of x and y is the required coordinate of the circumcenter.

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Please help I’m really confused on this. Thanks!

Answers

Answer:

[tex]y=\frac{1}{2}x-8[/tex]

Step-by-step explanation:

Perpendicular lines have the same slope. So, the slope of the line we need to find is 1/2.

Thus, the equation is

[tex]y+5=\frac{1}{2}(x-6) \\ \\ y+5=\frac{1}{2}x-3 \\ \\ y=\frac{1}{2}x-8[/tex]

It takes 5 minutes for your printer to print 40 papers
How long does it take for your printer to print 12 papers?

Answers

It will take 1.5 minutes for printer to print 12 papers.

Given,

Time taken to print 40 papers=5 minutes

then,

Time taken to print 1 paper =[tex]\frac{5}{40}=\frac{1}{8}[/tex] minutes

then to find time taken to print 12 papers, multiply 12

Time taken to print 12 paper,

[tex]Time=\frac{1}{8}*12\\\\Time=1.5\ minutes[/tex]

Thus, it will take 1.5 minutes for printer to print 12 papers.

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