Una escalera está apoyada sobre la fachada de un edificio. Si la escalera mide 10 m de longitud y el pie de la escalera está a 5 m de la pared, ¿a qué altura de la pared llega la escalera? Expresa el resultado con radicales extrayendo todos los factores posibles.

Answers

Answer 1

Answer:

8.66 meters

Step-by-step explanation:

Assuming that the building is completely straight, a right angle is formed and therefore a right triangle.

Thanks to this we can calculate the height at which the ladder reaches the wall using the Pythagorean theorem, this height being one of the legs.

We have to:

c ^ 2 = a ^ 2 + b ^ 2

c = 10

a = 5

replacing

b ^ 2 = 10 ^ 2 - 5 ^ 2

b ^ 2 = 75

b = 8.66

that is to say that the height at which the ladder reaches the wall is 8.66 meters


Related Questions

A concrete planter is formed from a square-based pyramid that was inverted and placed inside a cube.

A. What is the slant height of the pyramid?

B. What is the surface area of the composite figure?

HINT: The surface area consists of lateral faces of the inside of the inverted pyramid and the remaining 5 faces of the cube.

C. How many cubic yards of concrete are needed to make the planter?

Answers

Answer:

Step-by-step explanation:

A) To determine the slant height, we would apply Pythagoras theorem to the right angle triangle formed. The opposite side would be the distance from the center of the pyramid to the center of any side. Therefore

Opposite side = 2/2 = 1 yrd

Slant height, L = hypotenuse

Adjacent side = 2 yrd

Hypotenuse² = opposite side² + adjacent side²

L² = 1² + 2² = 5

L = √5 = 2.24 yrds

Slant height = 2.24 yrds

B) Area of each triangular face = 1/2 × 2 × 2.24 = 2.24

Surface area of 4 triangular faces = 2.24 × 4 = 8.96 yrds²

Surface area of the remaining 5 faces of the cube = 5 × 2² = 20 yrds²

surface area of composite figure = 20 + 8.96 = 28.96 yrds²

C) volume = 1/3 × base area × height

Volume = 1/3 × 2² × 2 = 2.67 yrds³

The data set shows the numbers of hours that employees at a certain shop worked in one week. What is the mean number of hours they worked that week? 30 15 32 48 16 51 30 35 32 31

Answers

Answer:

mean number of hours worked = 32

Step-by-step explanation:

The mean or average of a set of data is the sum of the individual data divided by the number of entries.

Therefore, the mean number of hours worked is calculated as follows:

sum of the number of hours = 30 + 15 + 32 + 48 + 16 + 51 + 30 + 35 + 32 + 31 = 320

Number of entries = 10

mean number of hours worked = sum of the number of hours ÷ Number of entries

mean number of hours worked = 320 ÷ 10 = 32

how many 1/8 are in 1/2 a cup

Answers

Answer:

Add dem

Step-by-step explanation:

Just add dem and u will get our answer

Answer:

4

Step-by-step explanation:

Add 1/8 until, when simplified, it will equal 1/2:

1/8 + 1/8 = 2/8

2/8 + 1/8 = 3/8

3/8 + 1/8 = 4/8 = 1/2

4 1/8 are needed to get 1/2: (4 * 1)/8 = 4/8 = 1/2

5/4=y−14 help meeeee

Answers

Answer:

y= 61/4

Step-by-step explanation:

-y=-14-5/4

-y=-61/4

-1(-y=-61/4)

y= 61/4

61/4 is the right answer


Let ∠A, ∠B, and ∠C be acute angles. Use a calculator to approximate the measures of ∠A, ∠B, and ∠C to the nearest tenth of a degree.

cos A = 0.31, sin B = 0.89, tan C = 0.52

Answers

Answer:

1. ∠A =  71.9°

2. ∠B =  62.9°

3. ∠C = 27.5°

Step-by-step explanation:

By using a calculator, we have;

cos A = 0.31

sin B = 0.89

tan C = 0.52

1. Therefore, ∠A = cos⁻¹(0.31), inputting the digits in the calculator and looking for the inverse sign, we have;

∠A = cos⁻¹(0.31) = 71.94° = 71.9° to the nearest tenth of a degree.

2. For sin B = 0.89, we have;

∠B = sin⁻¹0.89 = 62.873° ≈ 62.9° with the answer rounded to the nearest tenth of a degree.

3. Similarly, for tan C = 0.52, inputting the values in the calculator and pressing the tan⁻¹ button, we have;

∠C = tan⁻¹(0.52) = 27.474°, which is 27.5° rounded to the nearest tenth of a degree.

Work out the value of 58×5-2
54

Answers

Answer:

36

Step-by-step explanation:

58 times 5 is 290. 290-254 is 36

Need help ASAP. WILL MARK BRAINLIEST

Answers

Answer: 150.80 inches.

Step-by-step explanation:

Answer:

75.36

Step-by-step explanation:

You need to multiply the diameter, 24 by 3.14, and the answer is 75.36.

The watch Bea would like to buy costs $10 less than 2
times the amount she has saved. The watch costs $50.
How much money does Bea have saved?

Could whoever answers pls tell the equation used?

Answers

Answer: Bea has $30 saved

Step-by-step explanation:

Add 10: 50+10=60

Divide by 2: 60/2=30

60. Express - 78 in the form bi where b is a real number.
TIME SENSITIVE‼️‼️‼️

Answers

Answer:

c

Step-by-step explanation:

In a certain Algebra 2 class of 24 students, 6 of them play basketball and 16 of them play baseball. There are 6 students who play neither sport. What is the probability that a student chosen randomly from the class plays both basketball and baseball?

Answers

Answer:

4/24

Step-by-step explanation:

Answer:

4/24

Step-by-step explanation:

Need help ASAP !! Anyone get this question ?

Answers

Answer:

1:3

Step-by-step explanation:

Down arrows: 4 out of 12

4:12

1:3

Answer:

4:12, 4 to 12, or 4/12

Step-by-step explanation:

this is so simple, first see how many down arrows are there

down arrows: 4

then count the total arrows

total: 12

down arrows to total arrows

4:12

Brainliest!!!
What is 30 divided by 5?
Really Easy!

Answers

Answer:

6

Step-by-step explanation:

Answer:

The answers 6 gorgious

The hardware store is having a 15% off sale on lawn mowers this weekend.If x is the original price of the lawn mower,what will be the final sales price,excluding tax?

Answers

Answer:

Final price f = 0.85x

Step-by-step explanation:

Let f represent the final price and

x is the original price of the lawn mower

Given;

The hardware store is having a 15% off sale on lawn mowers this weekend;

the final sales price,excluding tax will be equal to the original price minus 15% of the original price.

Final price f = 100% of x - 15% of x

Final price f = x - 0.15x

Final price f = 0.85x

Answer:

WHAT IS THE ANSWER?

Step-by-step explanation:

help mehhh

Two and a half pounds of Super Nutty granola cost $12. How much does one pound cost?

Answers

Answer:

4.8 dollars for 1 pound super nutty

Solve the following trigonometric equations for all values of x | 0 < x < 360o. (12.5 pt. ea.)

1. 4 cos2 x = 3 2. 3 tan x = tan x – 2


















Solve the equations for all values of θ | 0o < θ < 360o (12.5 pt. ea.)

3. 4 cos θ = – 4 4. – 1 – sin θ = – 4 – 7 sin θ
√ 2

Answers

Answer:

202

Step-by-step explanation:

4th answer

What is the surface area of a cube in which each face of the cube has an area of 7 cm??

Answers

Answer:

42

Step-by-step explanation:

6 faces to a cube

each face has area of 7

6*7 is 42

Answer:

42 is correct

Step-by-step explanation:

give the other person brainliest

Sue biked 5 kilometers each day for 7 days. How many cm did she bike in all?


HELP ASP GIVING YOU 30 POINTS FOR THIS

Answers

Answer:

3,500,000

Step-by-step explanation:

Answer:

Sue biked 3,500,000 centimetres.

Step-by-step explanation:

First, multiply 5 km by 7 (days). 5 × 7 = 35 km

Convert the kilometres to centimetres.

There are 100,000 cm in a kilometer, so multiply:

35 × 100,000 = 3,500,000 cm.

Anthony played a dart game using the dartboard shown above. Anthony had 5 throws and then added his points. He hit the -6 twice, the 10 once, the 2 once, and the -4 once. How many points did Anthony earn?

Answers

Answer:

- 4

Step-by-step explanation:

The number of points earned by Anthony is the sum of all the individual points earned from the 5 throws. Considering that he had -6 on 2 throws, 10 from one throw, 2 and the -4 from the final set of throws, the total is equivalent to

= -6 - 6 + 10 + 2 -4

= -4

Anthony earned a total of - 4 from the 5 throws.

The value of the square root of 13 is between

Answers

Answer:uhhhhhhhhhhhhhhhhhhh 14

Step-by-step explanation:

The box is 3/4 inch long, 1/2 inch wide, and 1,4 inch deep. What is the volume of the box.

Answers

Answer:

4/32

Step-by-step explanation:

3/4*1/2=3/8

3/8*1/4=4/32

Answer:

3/32 inch^3

Step-by-step explanation:

Order the rational numbers from least to greatest

Answers

It’s the 3rd option. Everything with a - in front of it is smaller than 0.

Answer:

its the 3rd one

Step-by-step explanation:

you find which one is smaller and then you go to the next one up

Jada walks up to a tank of water that can hold up to 10 gallons when it is activated a dream empty water from the tank at a constant rate when Jayda first season take it contain 7 gallons of water three minutes later the tank contains 5 gallons of water at what rate is the amount of water in the tank changing you signed numbers and include the unit of measurement in your answer

Answers

Correct question:

Jada walks up to a tank that can hold up to 10 gallons. When it is active, a drain empties water from the tank at a constant rate. When Jada first sees the tank, it contains 7 gallons of water. Three minutes later, the tank contains 5 gallons of water. At what rate is the amount of water in the tank changing? use a signed number, and include the unit of measurement in your answer.

Answer: - 2/3

Step-by-step explanation:

Given the following :

Amount of gallon tank can hold = 10

tank drains at a constant rate :

First look tank contains 7 gallons

After 3 minute,

Tank contains 5 gallons

Thus signifies a 2 gallon decrease in volume of water after 3 minutes

Therefore, the rate of change =( change in volume) / time

Rate of change = (final volume - initial volume ) / 3

(5 - 7)/ 3 = - 2/3

How much money was raised with the 100 tickets solved?

Answers

Answer:

£1481

Step-by-step explanation:

First find the cumulative frequency of the child tickets. You should get 58.

Then multiply this by the price of the child tickets.

58x12.50=£725

Then, to work out the number of adults, we subtract 58 from 100

100-58=42

Then multiply this by the price of adult tickets.

42x18=£756

Add both prices together to get your answer.

725+756=£1481

Sorry if it's too late, I hope it helps. :)

An isosceles triangle has an angle that measures 50°. Which other angles could be in that isosceles triangle?
The answer choices are
65°
80°
50°
30°
Plz help

Answers

Answer:

80

Step-by-step explanation:

An isosceles has 2 angles that are the same so 50+50 is 100 so we have 80 degrees left to make a full triangle because all angles will always add up to 180 so 50+50+80 is 180 degrees

50 and/or eighty because it’s an isosceles and that makes it two of the angles the same so the the other has to be fifty and the interior sum of a triangle is 180 always and fifty plus fifty is a hundred so you need eighty to finish it off

Consider the quadratic function f(x)= 2(x + 4)² − 6. Does the graph open up or down

Answers

Answer:

up

Step-by-step explanation:

a is positive

An acute ∆ABC is rotated about a point and then dilated by a scale factor of 0.5 to produce ∆A’B’C’. Which statement correctly compares ∆ABC to ∆A’B’C’.

Answers

Answer:

Option given in the top right.

Step-by-step explanation:

If an acute triangle is rotated about a point,

- Angles of the transformed triangle remain unchanged.

If a triangle is dilated by a scale factor of [tex]\frac{1}{2}[/tex],

- Measure of sides of the image will be dilated by a scale factor of 0.5.

Therefore, statement that compares ΔABC to ΔA'B'C' will be,

The angle measures of the triangle A'B'C'are the same of those ΔABC, but the side length of the ΔA'B'C' half the size of those of ΔABC.

Option given in the top right is the answer.

14,500 people are sitting in a stadium. One of them is picked out. What are the chances that the person's birthday is on a Sunday?
Please give an accurate answer

Answers

There are 7 days in a week.

The probability of being on any one day of the week would be 1/7

So the probability of a persons birthday being on a Sunday would be 1/7

Answer:

WELL THERE 7 DAYS IN THE WEEK

Step-by-step explanation:

The 10th term of an AP is -37 and sum of its first 6 terms is -27. Find the sum of its first eight terms.

Answers

Answer: - 63

Step-by-step explanation:

An arithmetic progression is such that the N-th element is equal to:

An = A1 + (n-1)*R

where A1 is the first term, and R is the difference between two consecutive terms.

We know that

A1 + 9*R = -37

and

A1 + (A1 + R) +  (A1 + 2R) +   (A1 + 3R) +  (A1 + 4R) +  (A1 + 5R) = -27

6*A1 + R(1 + 2 + 3 + 4 + 5) = -27

6*A1 + 15*R = -27

so we have two equations:

6*A1 + 15*R = -27

A1 + 9*R = -37

Let's find A1 and R.

First, isolate A1 in the second equation:

A1 = -37 - 9*R

now replace it in the other equation and solve it for R.

6*A1 + 15*R = -27

6*(-37 - 9*R) + 15*R = -27

-222 - 54*R + 15*R = -27

-39*R = -27 + 222 = 195

R = 195/-39 = -5

Now we can find the value of A1:

A1 = -37 - 9*R = -37 - 9*-5 = 8

So now we want to calculate the sum of the first eight terms. we already know that the sum of the first six is -27, so we need to add the seventh and the eigth.

A7 = 8 + 6*-5 = -17

A8 = 8 + 7*-5 = -22

Sum = -27 -17 - 22 = -63

A polynomial p has zeros when x = 1/5, x = -4, and x = 2.
What could be the equation of p?

Answers

Answer:

-3

Step-by-step explanation:

and

= -3

What could be the equation of p?

Choose 1 answer:

©

p(x) = 2(6x + 1)(x+3)

©

p(x) = 2(6x – ) (2 – 3)

© p(x) = + (6 +) (+3)

© pla) = = (***) (2-3)

Answer:

p(x) = (5x - 1) (x + 4) (x - 2)

Step-by-step explanation:

The following table shows the number of points scored last basketball game by each player on the Dragons basketball team.
Player Number of points scored
Daniela 555
Isabella 888
Rafaela 111111
Beatriz 777
Kalin 99

FIND MAD

Answers

Answer:

[tex]1.6[/tex]                                                                                 - written in [tex]2/12/2021[/tex]

Step-by-step explanation:

The answer is [tex]1.6[/tex] because, [tex]\frac{5+8+11+7+9}{5} = 8[/tex] and [tex]8-5=3[/tex], [tex]8-8=0[/tex], [tex]11-8=3[/tex], [tex]8-7=1[/tex], and [tex]9-8=1[/tex].

So use all the sums and you'll get this: [tex]\frac{3+0+3+1+1}{5} =1.6[/tex]

This is exactly how I got the answer, I also did it on khan because I didn't trust the other person above me, and I got the same answer as him. So I did this to prove he's correct.

Answer:

7.4

Step-by-step explanation:

Other Questions
Which equation could be used to calculate the sum of the geometric series?One-third + two-ninths + StartFraction 4 Over 27 EndFraction + StartFraction 8 Over 81 EndFraction + StartFraction 16 Over 243 EndFraction The life cycle of stars may be boiled down into a tug of war, lasting billions of years, between two basic forces. In your own words, describe these forces, and identify which of the two eventually "wins" the battle. Which of the values shown are potential roots of f(x) = 3x3 13x2 3x + 45? Select all that apply NBC and CBS were competing to establish news dominance by being the first American network to broadcast Queen Elizabeth IIs coronation. NBC and CBS raced back from England on high-speed planes. Which American network was first to begin broadcasting?ABCCBSNBCCNN Your personal mission statement must be self- written. True or false ? Write a linear equation from a slope and a point According to Woolf, what act would have been impossible for a woman of the17th century to accomplish?A. Learning to readB. Becoming an actressC. Starting a businessD. Marrying a wealthy man Read the excerpt from Weve Got a Job by Cynthia Levinson.Audrey and James didnt go to the mass meeting either. They were in jail.Audrey was taken to a large dayroom. She didnt know anyone, and everyone was older. Dinner was unappetizing. "They gave us grits . . . she said. "They were horribleall soupy, no salt. That night, she slept on a bunk bed "on one mattress, with one sheet, and no covers.The first-person quotations in this excerpt help explain?A Audreys experience in jail.B what happened to Audreys parents.C why James and Audrey were jailed.D how long Audrey was in jail. Describe the microscopic structures you would expect to see in the lungs. Positive positive = ? PLZ HELP WILL MARK BRAINLIEST!You put $200 in a savings account. The account earns 9% simple interest per year.a. What is the interest earned after 5 years?The interest earned is $___ after 5 years.b. What is the balance after 5 years?The balance is $____ after 5 years. Find the largest number.16.3, 15.7, 16.9, 15.8The largest number is .if you have seen my questions before i have 4 questions i dont know soo might as well ask someone Line parallel to the y-axis that passes through the point (77,88) The capital accounts of Heidi and Moss have balances of $90,000 and $65,000, respectively, on January 1, the beginning of the current fiscal year. On April 10, Heidi invested an additional $8,000. During the year, Heidi and Moss withdrew $40,000 and $32,000, respectively. Revenues were $540,000 and expenses were $420,000 for the year. The articles of partnership make no reference to the division of net income. Required: 1. Prepare a statement of partners' equity for the partnership of Heidi and Moss. If an amount box does not require an entry, leave it blank. Enter all amounts as positive numbers. Heidi and Moss Statement of Partners' Equity For the Year Ended December 31 Heidi Moss Total Capital, January 1 $ 90,000 $ 65,000 $ 155,000 Net income for the year 60,000 60,000 120,000 $ $ $ $ $ $ Withdrawals during the year Capital, December 31 $ 118,000 $ 93,000 $ 211,000 2. Journalize the entries to: Close the revenue and expenses account. Close the drawing accounts. If an amount box does not require an entry, leave it blank. a. Revenues 540,000 Heidi, Capital 540,000 Moss, Capital 420,000 Heidi, Capital 40,000 Moss, Capital Moss, Drawing b. Heidi, Capital 40,000 Moss, Capital 32,000 Heidi, Drawing 40,000 Moss, Drawing 32,000 PLS HELP FAST Read this excerpt from A Black Hole Is NOT a Hole by Carolyn Cinami DeCristofano.In fact, every quasar and radio galaxy dot turned out to be energy from the center of an entire galaxy. Astronomers found stars careening around these centers, zooming at previously unheard-of speeds in their orbits. The motion was like an accelerating ice skater pulled around her partner in a tight twirlor like a fish caught in a superstrong whirlpool. Something extreme had to be in the middle of each of those galaxies.You might be able to guess what this was, but for scientists, the best answer came as a shock. In 1994 telescopic evidence confirmed the amazing cause: a supermassive black hole, with the mass not of one imploded star, not of two, but of millionsmaybe even billions.In the excerpt, the author makes a connection between the discovery of quasars and radio galaxies andthe invention of the radio telescope. the scientist who mapped radio waves.the identification of the Milky Way. the confirmation of a supermassive black hole. find the LCD OF 11/15 AND 23/54 As it is used in paragraph 12, the word "accommodation" most nearly means: whats the answer to this? Mean temperature: 78Standard deviation: 5Washington, DCJuly 4: 1952 - 2011Average Daily TemperatureCheck all of the temperatures that are within onestandard deviation of the meano 727479984Number of YearsC) ONODONEAverage Temperature NEED HELP ASAP!!!!!!!!!!!!!!!!!!!!!!!!!!!What is the volume of a can of beans with a height of 20 cm. and a radius of 12 cm? Use 3.14 to approximate . Express your answer in hundredths.Based on the above math problem fill in the numbers for the known values. Notice the units are provided, so ONLY enter the number.