A person whose eye level is 15 feet above the ground is looking at a building. The angle of elevation to the top of the building is 40° and the angle of depression to the bottom of the building is 15°. What is the height in feet of the building?

Answers

Answer 1

Answer:

61.97 feets

Step-by-step explanation:

Using trigonometry :

Horizontal distance between the person and building,

Let distance = d

Tan 15 = 15 / d

0.2679491 * d = 15

d = 15 / 0.2679491

d = 55.980781

To obtain the height, h :

tan 40 = (h-15)/d

d = 55.98

h-15 = 55.98 (tan 40°)

h - 15 = 55.98 * 0.8390996

h - 15 = 46.972797

h = 46.972797 + 15

h = 61.972797

h = 61.97 feets


Related Questions

Can anyone help me with this math please I will give brainlist

Answers

Answer:

4.5 > 4.420

0.67 < 0.8

0.82 = 0.820

62.4 > 6.24

0.13, 0.3, 0.303, 0.32

0.08, 0.8, 0.82, 8.2

24.54, 24.4, 24.304, 24.24

6.5, 6.25, 6.05, 6.007

Step-by-step explanation:

The most useful way to compare fractions is to add extra zeros at the end.

For example, 0.67 ___ 0.80.

0.80 is obviously bigger than 0.67.

In 24.4, 24.54, 24.304, 24.24, you can add extra zeros as well.

24.400, 24.540, 24.304, 24.240 (This makes it much easier to group the numbers, whether from largest to smallest or smallest to larger).

**REMEMBER TO REMOVE THOSE ZEROS AFTER FINDING YOUR FINAL ANSWER**

Your question of the day

What makes a good student? Explain? Why?

Answers

Answer:

a good student someone that pays attention in class and studies. If they do the work, study and pay attention there should be no issues. most teachers like students like that and the should be able to pass the class.

If two sides of a triangle measure 4 cm and 6 cm what could be the measure of the third side? A. 9 B. 10 C. 11 D. 12

Answers

Answer:

A. 9

Step-by-step explanation:

Triangle Inequality:  the lengths of any two sides of a triangle add up to more than the third side.

B. 10 can't be the answer because the 4 cm and 6 cm sides would just meet at a point on the 10 cm sides.

C. 11 and D. 12 can't be answers because the 4 cm and 6 cm sides would not meet (kind of like windshield wipers that are too short).

Need answer please on this question

Answers

Answer:

answers are a d and b

Step-by-step explanation:


a) If there were 3 elephants at the zoo, how many hippos would there be?

Answers

Answer:

3 as well lol?

Step-by-step explanation:

Answer:

6

Step-by-step explanation:

mr jones is painting a wall in his office. he has enough paint to cover 104 square feet . the wall he is painting is 12 feet wide and 9 feet long. Does he have enough paint to cover the wall

Answers

Answer:

no

Step-by-step explanation:

9x12=108

108 square feet so not enough paint.

needs more paint that covers 4 square feet

Yani buys 4 dozen flyers for $7.25. What is
the cost of 12 dozen?
helppp now plz

Answers

Answer:

$21.75

Step-by-step explanation:

Divide $7.25 by 4 then multiply what you get from that by 12

At a fair 15% less people attended on Monday than the number of people who attended on Sunday. If 425 people attended on Monday, find the number of people who came to the fair on Sunday

Answers

Answer: 500

Step-by-step explanation:

let we suppose x people went to the fair on Sunday.

now number of people attend the fair on monday=x-15%of x.

x-15x/100=100x-15x/100

85x/100

A/q

85x/100=425

85x=42500

x=42500/85

500

so, 500 people. attended the fair on sunday

A motorboat averages 20 miles per hour (mph) in still water. It takes the boat the same amount of time to travel 3 miles with the current as it does to travel 2 miles against the current. What is the current's rate in mph?

Answers

Answer:

4 mph

Step-by-step explanation:

Let :

Boat speed = 20 mph

speed of current = x mph

Distance against current = 2 miles

Distance with current = 3 miles

speed against current will be ; 20 - x

speed with current will be ; 20 + x

Time =distance / speed against time against = time with current

Solving Mathematically ;

2/(20-x )=3/(20 +x)

2(20+x )= 3( 20-x )

40+2x = 60-3x

3x +2x=20

5x=20

x = 20 / 5

x = 4 mph

Speed of current = 4 mph

CAN SOMEONE HELP PLEASE

Answers

Point of intersection where the two lines meet is at (3, -2)

Answer:

Point of intersection where the two lines meet is at (3, -2)

Step-by-step explanation:

I need an answer! NO LINKS! PLS ill give brainlist!

Answers

i’m pretty sure it’s D. 84.4

Find the surface area of the cylinder to the nearest tenth of a square unit. Use 3.14 for TT.
4.9 ft.
7 8 ft
A. 38.2 ft2
B. 75.4 ft2
C. 286.2 ft?
D. 390.8 ft2

Answers

bestie i would say it’s A because you multiply and you don’t have the other surface areas hope this helps <3

HELP, I can't figure out the first question
Answer choice for first question
1. linearly
2.quadratically
3.exponentially

Answers

The answer is linearly

REPOST!!!!!! 20 POINTS!!!!!!


A, B, and C are points of tangency in the given Circle, a m equals 6, BK equals 4 in the perimeter of mkn is 34 ​

Answers

Answer:

A

Step-by-step explanation:

according to tangent property

we get

AM=BMAN=CNBK=CK

Given that

AM=6BK=4

Thus our equation is

[tex] \rm \displaystyle 2AM + 2AN + 2BK = 34[/tex]

substitute the given values

[tex] \rm \displaystyle 2.6+ 2AN+ 2.4 = 34[/tex]

simplify multiplication:

[tex] \rm \displaystyle 12+ 2AN+ 8 = 34[/tex]

simplify addition:

[tex] \rm \displaystyle 2AN+ 20= 34[/tex]

cancel 20 from both sides:

[tex] \rm \displaystyle 2AN=14[/tex]

divide both sides by 2:

[tex] \rm \displaystyle AN=7[/tex]

AN=CN

hence,CN=7

therefore our answer is A

WHAT IS THE MEDIAN pls help

Answers

Answer:

63

Step-by-step explanation:

If you put them from least to greatest order you cross out from both ends until you get to the middle, in that case I got to the middle in between 63 and 63 so you can go in between them so your answer is 63

It’s the numbers in the middle so it would be a number in between 80 and 63.

A painter needs to buy a ladder in order to paint a wall that is 18 feet high. In order to ensure the ladder does not fall it needs to be placed 3 feet away from the wall. What size ladder does the painter need to buy to ensure that he will be able to paint the highest point of the wall? Write your answer rounded to the ncarest tenth.​

Answers

Answer:

222! thats your answer!

Step-by-step explanation:

4.2 decreased by the quantity 12 plus a number

Answers

Answer and Step-by-step explanation:

This is the same thing as:

4.2 - (12 + x)

The 4.2 is being subtracted by the value of 12 and a number, denoted as x.

#teamtrees #PAW (Plant And Water)

Consider this right triangle...

Omg pleaseeeee help me!! I have SBA Math Test on Friday and I forgot everything I learned last year from Geo. Help would be very very much appreciated!! WILL GIVE BRAINLIEST!! Thank you so muchhhhh <3

Answers

Answer:

33°

Step-by-step explanation:

have a nice day!! :)

What is the area of this trapiziod

Answers

Answer:

30 in²

Step-by-step explanation:

A=(b1+b2)h/2

A=(10+5)4/2

A=(15)4/2

A=60/2

A=30 in²

Answer:

Hello! I believe its 30

Triangle to the left I did 4 x 3 = 12 ÷ 2 =6

Triangle to the right I did 2 x 4 = 8 ÷ 2 = 4

Then I did square in the middle so 5 x 4 = 20

Now i add these up 20 + 6 + 4 = 30

Hope this helps!

There were x cupcakes at the beginning of a party. By the end of the party, 16 of them had been eaten. Using x, write an expression for the number of cupcakes that were left.

Answers

Answer: x - 16

Step-by-step explanation:

Since there were x cupcakes at the beginning of a party and at the end of the party, 16 of them had been eaten, the expression for the number of cupcakes that were left will be gotten by subtracting the number of cupcake that have been eaten from the cupcakes at the beginning. This will be:

= x - 16

For example, if there were 20 cupcakes at the beginning and 16 was eaten, the number left will be:

= x - 16

= 20 - 16.

= 4

There'll be 4 left

How to solve this equation?

Answers

It says use the substitution method, so you would take the bottom equation, and since it says that x is equal to that, you would use that equation in place of the x in the top equation. so it would be 9y = 3(3y+3) - 9. You then distribute the 3 into the 3y +3, which gets you 9y = 9y + 9 - 9, which is also 9y=9y. Subtract 9y to get 0 = 0, which just means that there are infinite solutions to this equation. Whenever you get 0 = 0, all that means is that there are infinite solutions to this particular set of equations. Hope this helped!

Answer:

y=y

x=3y+3

Step-by-step explanation:

[tex]\left \{ {{9y=3x-9} \atop {x=3y+3}} \right.[/tex]

[tex]9y=3x-9[/tex]

Plug the second equation [tex]x=3y+3[/tex] into the above equation as x

[tex]9y=3(3y+3)-9[/tex]

Open up the brackets

[tex]9y=3(3y+3)-9\\9y=9y+9-9\\9y=9y\\y=y[/tex]

This system of equations has infinitely many solutions.

When graphed, the two lines will overlap each other.

Therefore, y=y and x=3y+3.

I hope this helps!

find the value using identities (302)3

Answers

Answer:

108,000,934

1.08934×10^8

Step-by-step explanation:

(302)^3

(a+b)^3

(a+b)^3==a^3+3a^2b+3ab^2+b^3

(300+2)

(300)^3+3(300^2+2)+3(300+2^2)+2^3

27,000,000+81,000,002+8+924

108,000,002+8+924

108,000,934 or 1.08934×10^8

Que números son divisibles entre 5 y 10 a la vez

Answers

Answer:

5

Step-by-step explanation:

5
3х - 10
15. х - 3x —
10
x-(3x -
3​

Answers

Answer:

3 - 151 x

Step-by-step explanation:

d/dx(5×3 x - 10×15 x - 3 x - 10 x - (3 x - 3)) = -151

Indefinite integral:

integral(3 - 151 x) dx = 3 x - 75.5 x^2 + constant

Definite integral after subtraction of diverging parts:

integral_0^∞ ((3 - 151 x) - (3 - 151 x)) dx = 0

Write a system of equations to describe the situation below, solve using elimination, and fill in the blanks. Tori hosts a podcast about computers, and Wendy hosts a podcast about parenting. Both podcasts have a set duration for each episode. Last year, Tori released 40 episodes and Wendy released 16 episodes, for a total of 5,584 minutes of content. This year, Tori released 27 episodes and Wendy released 11 episodes, which lasted a total of 3,795 minutes. How long is each episode? Each episode of Tori's podcast is minutes long, and each episode of Wendy's podcast is minutes long.

Answers

Answer:

x = minutes of Tori's podcast = 88 minutes

y = minutes of Wendy's podcast = 129 minutes

Step-by-step explanation:

Let

x = minutes of Tori's podcast

y = minutes of Wendy's podcast

40x + 16y = 5,584 (1)

27x + 11y = 3,795 (2)

Multiply (1) by 11 and (2) by 16

440x + 176y = 61,424 (3)

432x + 176y = 60,720 (4)

Subtract (4) from (3) to eliminate y

440x - 432x = 61,424 - 60,720

8x = 704

x = 704/8

x = 88

Substitute x = 88 into (1)

40x + 16y = 5,584 (1)

40(88) + 16y = 5,584

3,520 + 16y = 5,584

16y = 5,584 - 3,520

16y = 2,064

y = 2,064/16

y = 129

x = minutes of Tori's podcast = 88 minutes

y = minutes of Wendy's podcast = 129 minutes

Write 11 x 11 x 11 x 11 x 11 x y X y X y in
exponential form.

Answers

11 × 11 × 11 × 11 × 11 × y × y × y = 11⁵y³

Or, if you meant

11 × 11 × 11 × 11 × 11 × y X y X y = 11⁵X²y³

I’m not smart so help me please get it right

Answers

Answer:

Surface area = 148cm^2

Volume = 120cm^2

Step-by-step explanation:

You are smart don't say you're not. :)

Answer:

Surface Area is 148 cm^2

Your Volume will be 120 cm ^3

Step-by-step explanation:

Surface Area you get by getting the area of each of the 2 dimensional shapes, the formula to get the surface area for a rectangualr prism is 2(wl+hl+hw), so you would plug in 2((5(6))+((4(6))+(4(5)) which will give you 2((30)+(24)+(20)) which will then give you 2(74) and the final answer will be 148 cm^2

The formula for Surface Area is w(l)(h) so in this case it will be 5(6)(4) which will be 30(4)= 120 cm^3

Hope this helps  

What is the value of x in the equation below? 3x - 15 = 60

Answers

Answer:

3x=60+15

x=75/3

x=25

Thus the answer is 25

Answer:

[tex]3x - 15 = 60 \\ 3x = 60 + 15 \\ 3x = 75 \\ x = \frac{75}{3} \\ x = 25[/tex]

ʰᵒᵖᵉ ⁱᵗ ʰᵉˡᵖˢ

Simplificación de la raíz cuadrada de 50

Answers

Answer: 5√2

Step-by-step explanation:√50--->√2*√25

√25--->5

5*√2=5√2

The length of a football field is 120 yards from one and one to the other end zone.​

Answers

Answer:

To solve, you need to use Pythagorean Theorum

a^2+b^2=c^2

100^2+53.33^2 = c^2

10,000+2844.0889=c^2

12844.1=c^2

square root

= 113 1/3 yards

So it is less than 120 yards

Step-by-step explanation:

Here's a primer on how the dimensions play out at every level, from high school football to the NCAA and on up to the NFL. There are two constants, across the level of competition: 120 yards (360 feet) of length and 53 1/3 yards (160 feet) of width.

i think this is what your looking for?!

Other Questions
Altiplanos are high plains ordesertplateausriversmountains Explain various causes that led to the outbreak of the French revolution? How did the expansion of the Roman Empire and the Pax Romana impact Europe? It created a period of war and famine. It created a period of war and famine. It created a period of peace and prosperity. It created a period of peace and prosperity. It decreased diversity in the region. It decreased diversity in the region. It decreased education in the region. 1. Which statement best expresses the centralidea of the article?O A Maldives has discovered that building aconcrete seawall is the best way to protectits people.OB Maldives has responded to sea level rise bycreating new and safer places for theircitizens to live.OC Maldives has discovered that most of itscitizens are not interested in learning aboutglobal warming.D Maldives has responded to sea level rise bymaking other countries responsible forfinding all of the solutions. Question 5 of 10 Atax added to the cost of an item bought at a store is ain) O A credit tax 2. income tax c. property tax D sales tax A roller coaster speeding down a hill is an example of A. Increasing kinetic energy B. Increasing nuclear energy C. All of these choices D. Increasing in potential energy You have a box with 5 blue marbles, 4 red marbles, and 9 yellow marbles. You are going to pull out one marble, record its color, put it back in the box and draw another marble. What is the probability of pulling out a blue marble followed by a yellow marble? PLEASE I need help!!!!!!!!!!NO FILES OR LINKS!!!!According to the USDA, one's daily diet should contain how much whole grains?A. at least half of all of the grains you eatB. at least one serving of brown riceC. all servingsD. no recommendation is given Why is it important that the author notes Johnny only has one jacket in the same paragraph where he explains, "there's a wide, open field where we play football and hang out, and it's often a site for rumbles and fist fights"? HELP I WILL GIVE BRAINIEST Jade has tax deducted from her income at the rate of 24%.Last month, after tax had been deducted, $1786 of her income remained.Calculate her income last month before the tax was deducted. f Andre sold 16 magazine subscriptions this week, would he reach his goal? Explain your reasoning. Middle East Write the name of the building or monument, location, and to which religion it is important to! I will post the other reasons rn What do you learn about raita?A. The pepper turns the raita a bright red color.B. Raita must be cooked before it can be served.C. Cilantro is the most important ingredient in raita. Select all the expressions that are equivalent to 4x + 2. A 8x +4 B 1/2(8x + 4) C] 1/2(2x + 1) D 2 (2x + 1) E 2x + 2x +1+1 Find the value of x in this equation?-1 = x - 2 Questions 22- 25 refer to the excerpt below."It was in suburbs such as Garden Grove, Orange County (California)... that small groupsof middle class men and women met in their new tract homes seeking to turn the tideof liberal dominance. Recruiting the like minded they organized study groups, opened*Freedom Forum' bookstores, filled the rolls of the lohn Birch Society, entered schoolboard races, and worked within the Republican Party, all in an urgent struggle to safeguardtheir particular vision of freedom and the American heritage. In doing so, they becamethe ground forces of a conservative revival-one that transformed conservatism from amarginal force preoccupied with communism in the carly 1960s into a viable electoralcontender by the decades end!Lisa McGirr, historian, Suburban Warriors: TheOrigins of the New American Right, 2001 26. What major demographic shift most likely led to what Lisa McGirr would call the conservative revival by the end of the 1960s?The increased amount of incoming immigrants to the United States throughout the 1960sThe move by the majority of the middle class families from the urban/cities to the suburbsThe Great Migration of African Americans from the South to the NorthUS Farmers moving from rural areas to urban areas27. Which of the following would most likely support the ideals of a conservative revival?Supporters of the Great Society programsThe Moral MajorityThe Anti-War MovementThe Counterculture movement28. What most likely happened later on a result of what McGirr describes in the excerpt?The emergence of environmental activism in the 1970sNew immigration orders are passed in 1965Ronald Regan is elected in the 1980 election as a conservative leaderThe Warren Court expanded individual freedoms in the 1960s and 1970s If you are in a car that is traveling at 60 mph and a balanced force is applied to the car what will happen to the motion of the car? /gen Esquire Clothing is a manufacturer of designer suits. For June 2020, each suit is budgeted to take 4 labor-hours. The budgeted number of suits to be manufactured in June 2020 is 1,040. Esquire Clothing allocates fixed manufacturing overhead to each suit using budgeted direct manufacturing labor-hours per suit. Data pertaining to fixed manufacturing overhead costs for June 2020 are budgeted, $62,400, and actual, $63,916. In June 2020 there were 1,080 suits started and completed. There were no beginning or ending inventories of suits.Required: a. Compute the spending variance for fixed manufacturing overhead. Comment on the results. b. Compute the production-volume variance for June 2017. What inferences can Esquire Clothing draw from this variance?