a girl 2.2m tall observes that the angle of elevation of the top of a building 16m away from her is 45° find the height of the building​

Answers

Answer 1

Answer:

18.2 m = height of the building

Step-by-step explanation:

Let x = the distance from the top of the girl's head to the top of the building

tan 45 = x/16

x = 16 tan 45

x = 16 m

16 + 2.2 = 18.2 m = height of the building


Related Questions

Sofia was following a recipe to cook for her friends. She only used ⅔ of the chicken in the recipe because it was a small gathering. If she ended up using 2.5 pounds of chicken, how many pounds of chicken are called for in the actual recipe?

Answers

Answer:

3.75

Step-by-step explanation:

Divide 2.5 by 2 to find out what 1/3 would be, then multiply that by 3 to get your answer - 3.75 pounds of chicken are called for

Hopefully this helps- let me know if you have any questions

Will mark brainly
ASAP

Answers

Answer:

4

Step-by-step explanation:

The answer is 4

Explanation

A bag of marbles contains only purple and yellow marbles. The bag has three times as many yellow marbles as purple. The bag contains 164 total marbles. Write an equation or system of equations to determine how many of each color of marble is in the bag. Define your variable(s) and expressions. Show how you checked your answer. PLZ HELP PLZ PLZ

Answers

Answer:

123 purple

Step-by-step explanation:

164/4 = 41

41 = yellow

3 times more purple

41 x 3 = 123

Johns dog weighd 7 pounds when he got him. The dogs wieghd trippled each year for two years. How many ounces does Johns dog weigh?

Answers

Answer: 336 ounces

Explanation: Since each pound in ounces is 16 ounces. (16 ounces is 1lb) which means that when john got his dog it means that his dog weighed 112 ounces. and if you do 112 multiped by 3 it will be 336. so that means that johns dog weighed 336 ounces in the 2 years.

12/18 In simplest form

Answers

2/3 is the simplest form

Answer:

Find the gcf, greatest common factor, of 12 and 18 and solve

Step-by-step explanation:

12: 1, 2, 3, 4, 6, 12

18: 1, 2, 3, 6, 9, 18

The gcf is 6, so divide the numerator and denominator by 6.

12 / 6 = 2

18 / 6 = 3

Therefore, 12/18, when relatively prime, is 2/3

HELP!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

I think the answer is B - 16

Step-by-step explanation:

Sorry if I'm wrong

Your answer would be “B” :))!

the sum of two numbers is 38 and their difference is 10 find the numbers​

Answers

Answer:

I believe the two numbers are 14 and 24

Answer:

Those numbers are 14 and 24.

Step-by-step explanation:

You can solve this pretty quickly by taking those two facts and combining them:

a + b = 38

a - b = 10

Let's solve the second one for a:

a = 10 + b

Now we can substitute that into the first one:

a + b = 38

(10 + b) + b = 38

2b + 10 = 38

2b = 28

b = 14

To find a, we can plug that back into one of the original equations:

a + b = 38

a + 14 = 38

a = 24

We can also test our answer by plugging the results into the other given equation and see if we get the same value:

a - b = 10

24 - 14 = 10

10 = 10

So we know our answer is correct.

Please help with 6-12​

Answers

Answer:

6-12=-6

Step-by-step explanation:

Its pretty obvious

please help me with my assignment question ​

Answers

Answer:

s = 21 cm

Step-by-step explanation:

Square is s x s = area

So you just take the square root button of the calculator to find that 21 x 21 is 441.

Answer:

21

Step-by-step explanation:

Area of Square formula: side x side

s^2=441

square root both sides:

s=√441=21

PLSSS HELP 5 GIVING POINTS PLUS BRAINLIEST
Select the correct comparison. Set A Set B 8 10 B 10 A. The typical value and the spread are both greater in set A. B. The typical value is greater in set A. The spread is greater in set B. C. The typical value is greater in set B. The spread is greater in set A. D. The typical value and the spread are both greater in set B.​

Answers

Answer:

the answer is B

Step-by-step explanation:

it makes the most sense

A set is a mathematical model for a collection of items. The typical value is greater in Set A, while the spread is greater in Set B.

What is a set?

A set is a mathematical model for a collection of items; it comprises elements or members, which may be any mathematical object: numbers, symbols, points in space, lines, other geometrical structures, variables, or even other sets.

In two of the given sets, the typical value is represented by a triangle, therefore, the typical value in Set A is 7.1..., while the typical value in Set B is 6.

Hence, the typical value is greater in Set A, while the spread is greater in Set B.

Learn more about Set:

https://brainly.com/question/8053622

#SPJ2


Plz help!!! You identify the error the solve it correctly!!!!!

Answers

Answer:

You have to multiply the numbers diagonally not vertically.

So

10x = 7(350)

10x = 2450

x = 245

9514 1404 393

Answer:

different sides of the equation were multiplied by different numbersx = 245

Step-by-step explanation:

There is a method of solving proportions that is called "cross multiply" or "cross multiplication". For a proportion like this it looks like each numerator is multiplied by the opposite denominator. In this problem, the result would be ...

  7(350) = (10)x

While "cross multiplication" is a description of the appearance of what is happening, what is really happening is that both sides of the equation are being multiplied by the same value: the product of the denominators. This is in accordance with the multiplication property of equality, which requires you multiply both sides of the equation by the same value.

__

The error that was made in this problem is that each numerator was multiplied by its own denominator. Effectively, that multiplied the left side of the equation by 10² = 100, and the right side of the equation by 350² = 122500. This is in direct violation of the multiplication property of equality, so guarantees the value found for x will be wrong.

__

While "cross multiply" is an instruction often given for solving proportions, it causes an extra step to be needed in solving a proportion like this one. All that is really needed is to multiply both sides of the equation by the denominator under the variable. Here, that means multiplying both sides of the equation by 350.

Correct solution

  [tex]\dfrac{7}{10}=\dfrac{x}{350}\\\\350\cdot\dfrac{7}{10}=350\cdot\dfrac{x}{350}\\\\\\35\cdot 7=\boxed{x=245}[/tex]

please help ASAP!!
Let ∠1, ∠2, and ∠3 have the following relationships.

Answers

Easy, the answer is 90. Angles 1 and 2 are right angles, and since angle 3 is a vertical angle, it must be equal to angle 1. So since angle 1 is 90 degrees, then angle 3 is 90 degrees. 90 + 90 - 90 = 90.

Which is greater among the following? *
101.009
101.09
101.0009
101.9

Answers

Answer: 101.9 can I do all your homework for you?

Answer:

101.9

Step-by-step explanation:

if you rounded off you will get 102

what is the circumference of a circle that's radius is 11.8​

Answers

Answer:

124

Step-by-step explanation:

Answer:

vggx yvhvjvd

Step-by-step explanation:

vhbbgu hg h

Tyras father is two more than three times as old as she
If Tyra is 9 years old how old is her father
29
27
17
18
32

Answers

29 because 9*3 is 27 +2 equals 29

Answer:

29

Step-by-step explanation:

9×3+2=29

Tyra's father is 29

HELP ME PLSSSS ANYONE JUST HELP ME PLSSSSS!!!!!!

Answers

Answer:

Step-by-step explanation#1

Answer:

B. 38

Step-by-step explanation:

Area of the trapezoid = 48

Area of the triangle = 10

Subtract the triangle area 48 - 10 = 38

Are these shapes similar or congruent?

Answers

Answer:

Congruent

Step-by-step explanation:

Hope this helps you!!



What is thirty-two and nine hundred seventy-five thousandths as a decimal number

Answers

Answer:

32.975

Step-by-step explanation:

HELP ME PLEASEEEEEEEE PLEASEEE PLEASEEEE

Answers

Answer:

Here ya go

Across:

1. bigger

5. meaner

6. easier

8. hotter

9. funnier

13. more unusual

15. better

16. colder

Down:

1. busier (if doesn't fit try more busy)

2. greasier

3. braver

4. more difficult

5. more interesting

7. stronger

10. cheaper

11. badder

12. farther

14. shorter

bigger is the first one and the second one is meaner

Raju bought an old car for Rs.125000 and spent Rs.25000 on its repair . He sold the car for Rs.200000 . Find his gain or loss percent .

Answers

Answer: [tex]33.33\%[/tex]

Step-by-step explanation:

Given

Raju buy an old car for [tex]Rs\ 1,25,000[/tex]

He spent [tex]Rs\ 25000[/tex] on its repair

The selling price of the car  [tex]Rs\ 2,00,000[/tex]

So, the cost price is

[tex]\Rightarrow C.P.=1,25,000+25,000=Rs\ 1,50,000[/tex]

Here, [tex]S.P.> C.P.\quad \text{i.e. gain}[/tex]

Gain percent is

[tex]\Rightarrow \text{Gain percent}=\dfrac{2,00,000-1,50,000}{1,50,000}\times 100=\dfrac{50,000}{1,50,000}\times 100\\\Rightarrow \text{Gain percent}=33.33\ \%[/tex]

Hello can someone help me with this please

Answers

i’m guessing square = 2 and moon = 1. reason if heart is 2 then their probably counting
Green squares is 8 and the blue moon is 4

I need help someone please help it would mean a lot

Answers

Step-by-step explanation:

the answer is 9................

The answer is 9 because you multiply the 4 and 3 by 3 in order to have the same denominator.

Two golf balls are hit into the air at 80 feet per second (60 mi/hr), making angles of 31 degrees and 49 degrees with the horizontal. If the ground is level, estimate the horizontal distance traveled by each golf ball.

Answers

9514 1404 393

Answer:

177 ft at 31°198 ft at 49°

Step-by-step explanation:

The vertical height as a function of time for some initial velocity v and some launch angle α is ...

  h = (-16t +v·sin(α))t

This will be zero (the ball hits the ground) at ...

  t = v·sin(α)/16

__

The horizontal distance as a function of time is then ...

  x = v ·cos(α)t

Where t is given from the height equation, the horizontal distance to the point where the ball hits the ground is ...

  x = v·cos(α)·v·sin(α)/16 = v²·sin(2α)/32

For an angle of 31°, the ball will travel ...

  (80 ft/s)²·sin(62°)/(32 ft/s²) = (200 ft)·sin(62°) ≈ 176.6 ft . . . at 31° angle

For an angle of 49°, the ball will travel ...

  (200 ft)·sin(98°) ≈ 198.1 ft . . . at 49° angle

A shop is having a sale all items are reduced work out the sale price of an item normally priced at £60

Answers

Question:

A shop is having a sales all items are reduced by 25%. Work out the sale price of an item normally priced at £60?

Answer:

The new price is £45

Step-by-step explanation:

Given

[tex]Sales\ price = \pounds 60[/tex]

[tex]Rate = 25\%[/tex]

First, calculate the reduction

[tex]Reduction = Rate * Sales\ price[/tex]

[tex]Reduction = 25\% * \pounds 60[/tex]

[tex]Reduction = \pounds 15[/tex]

The new price is:

[tex]New = Sales\ price - Reduction[/tex]

[tex]New = \pounds 60 - \pounds 15[/tex]

[tex]New = \pounds 45[/tex]

PLS PLS PLS PLS HELP!
Brainliest! Due in 15 mins! Please!

f(1)=−6
f(2)=−4
f(n)=f(n−2)+f(n−1)
f(3)=?

Answers

Answer:

-10

Step-by-step explanation:

(-6)+(-4)

What fraction of people vacationed in another state?

Answers

Answer:

3/10 of people vacationed in another state.

Step-by-step explanation:

Because there are 60 people in total, the denominator has to be 60. The numerator then is going to be the amount of people that vacationed in another state. Simplify that fraction by 6, and you will get 3/10 as your answer.

Answer:

[tex]\frac{3}{10}[/tex]

Step-by-step explanation:

Since we want a fraction, we find the total number of people who vaccinated, then we find how many people vacationed in another state.

18+10+5+15+12=60, and 18 people vacationed in another state, we get

[tex]\frac{18}{60}[/tex], and we can divide top and bottom by 2, we simplify to [tex]\frac{3}{10}[/tex]

AYOOOO PLEASE HELP if I had only a 20 dollar bill and my meal is $15.78 how much change would I get back SHEESHHH

Answers

Answer:

$4.22

Step-by-step explanation:

its just $20-$15.78

Answer: your change would be $4.22

Step-by-step explanation: 20 - 15.78= 4.22

A straight angle always measures _______________ degrees
please help

Answers

Answer:

180

Step-by-step explanation:

A straight angle measures 180 degrees

It costs $3 to bowl a game and $2 for shoe rental. Write an expression for someone who rents shoes and bowls d games

Answers

Answer:

3d+2d

Step-by-step explanation:

because you would times your amount of games by the cost per bowl and the cost per show rental but I may be wrong

Mar 12, 9:04:40 PM
Find the length of side x in simplest radical form with a rational denominator.

Answers

Answer:

x=sqrt(5/2)

Step-by-step explanation:

Other Questions
pls help !!For the triangle shown below, complete the following table.Note: Use slash (/) to separate numerator and denominatorsin Asin Ccos Acos C *WILL GIVE BRAINLIEST FOR BEST ANSWER*Use the data from the dot plot below to answer the question.How many students from this data sample have three siblings?Question 2 options:A. Three students have three siblingsB. One student has three siblingsC. Four students have three siblingsD. Two students have three siblings CSN YOU HELP ME PLEASEEEE!!!!! THANK YOUUU -Should the United States have renegotiated NAFTA and created the USMCA? Which of these is NOT included in the U.S. Constitutions Bill of Rights?A right to bear armsB.freedom of speechC.freedom of the pressD. right to have a job InabelAmuletsSpanish GatePrinciplesof ArtEmphasisBurdaHarmonyVarietyRhythm/MovementContrastPatternScaleUnity 3) Solve the triangle given that a = 15, b = 17, c = 13. Which type of company only spends money when absolutely necessary? PLEASE HELP WHICH ARE THE ANSWERS FOR BOTH QUESTIONS!?! PLS HELP ME I WILL GIVE BRAINLY What was the impact of this decision? States ended segregation in elementary schools but not in higher grades. States were permitted to maintain racially segregated schools so long as these were equal in quality. States were forced to end all racial segregation in public schools. States were required to ensure the economic and social equality of all races. Question 1 of 10 Which of the following phrases means "lunch" in Spanish? O A. El almuerzo B. La cena O C. El desayuno O D. La comida What is the gcf of 16xy and 24xyI was supposed to finish this an hour ago Sebastian is making bags of trail mix for hiking club. He will use 21 ounces of walnuts, 10.2 ounces of almonds, and 15.6 ounces of cashews. This amount makes 24 bags of trail mix. How many ounces are in each bag? hello asap pls!! Question 1 (4 points)(19th Century and Beyond: Industrial Revolution LC)What effect did the water frame have on the textile industry? (4 points)A.It reduced the cost to make cotton.B.It cut the supplies of raw cotton.C.It cost more money to make cotton.D.It raised the value of raw cotton. What happened to the peppered moths of Manchester, England when industry boomed and coal smoke darkened the light grey bark of the trees? A salt shaker company produces salt shakers of various heights they create a table showing how many salt Greynolds each size salt shaker holt does the star represent a proportional relationship click on the correct response then answer the question below The Continental Congress metfollowing the conclusion of whatconflict?A. French and Indian WarB. American RevolutionC. War of 1812 HELP ME ASAP PLEASEEEE, EXPLAIN;( I need help!!!!, Im struggling (HELP FAST FOR 20 POINTS)A teacher surveyed the 8th-grade students at her school to learn which sport they prefer to play. The results are shown in the table.According to the table, which sport do 20% of the students prefer to play? A dodecagon with a radius of 20 inches has an apothem of____ inches and a side length of _____ inches.what are the length of the apothem and the side length?