a guidebook says this tower is 50m tall.Is that correct? given deegrees are 27° and 46°

A Guidebook Says This Tower Is 50m Tall.Is That Correct? Given Deegrees Are 27 And 46

Answers

Answer 1

9514 1404 393

Answer:

   yes

Step-by-step explanation:

The tower is about 50.1 meters tall. The guidebook is correct.

__

The distance from the base of the tower to the angle vertex is ...

  d1 = h/tan(46°)

  d2 = d1 +50 = h/tan(27°)

Then the height of the tower is ...

  h/tan(46°) +50 = h/tan(27°)

  50 = h(cot(27°) - cot(46°))

  h = 50/(cot(27°) -cot(46°)) ≈ 50/(1.96261 -0.96569) ≈ 50/0.99692

  h ≈ 50.1544 . . . meters

The tower is more than 50 meters high.

A Guidebook Says This Tower Is 50m Tall.Is That Correct? Given Deegrees Are 27 And 46

Related Questions

A parallelogram has base 16 cm and height 5 cm. What is its area?

Answers

80 Bc when ur trying to find the area ur just multiplayer the base an height. 16•5=80cm

Answer:

80 is the answer u have read the formula

For which of the following equations does n = 5?
I. 3n = 15
II. n2 = 25
III. 2n = 32

Answers

Answer:

1) 3n = 15

Step-by-step explanation:

1. 3n=15
15 divided by 3 is 5

A number is decreased by 15% and the resulting number is then increased by 20%. That final number is what percent of the original number?

Answers

Answer:

The final final number becomes 102 % of the original number

Step-by-step explanation:

Let the initial number be 100

After decreasing 15%, the new number is 100-15% of 100 = 85

The resulting number is then increased by 20%. The new number will be

85 + 20% of 85 = 85 + 17 = 102

The final final number becomes 102/100 * 100  percent of the original number

The final final number becomes 102 % of the original number

Evan has a book to read that has 144 pages. If he has 12 days to finish the
book, how many pages must he read each day?

Answers

Answer:

12 pages a day

Step-by-step explanation:

144/12=12

hiii please help i’ll give brainliest:)

Answers

Answer:

weaving

Step-by-step explanation:

please mark this answer as brainliest

Please please please please please please help me a b c or d

Answers

Answer:

35 degree angle the line passes through the 30 and 40

Step-by-step explanation:

so c

hey i kinda need help on this question
(could you do a step by step method i think it would help a lot)

Answers

Answer:

27.6°

Step-by-step explanation:

6.5²-6² = 6.25

✓6.25 =2.5

^^^ that was Pythagoras theorem

9+2.5 = 11.5

23-11.5 =11.5

6 = height =opposite

11.5 = base = adjacent

sohcahtoa

use Tan

Tan-¹(6/11.5)

gives the angle CDA = 27.5528...

27.6 (1d.p)

Consider this right triangle with given measures.

What is the length of the missing leg?

Answers

Answer:

The answer is 6 feet.

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

Please help me ASAP Its 4th grade homework

Answers

Answer:

equilateral

Step-by-step explanation:

all sides are even to each other

Answer: Equilateral triangle

Step-by-step explanation: This is because it has 3 equal sides

Pls help ASAP!!!!! plss anyone!!!!

Answers

Answer:

1)

a = 117°

c = 117°

d = 63°

2)

c = 87°

3)

a = 60°

b = 30°

42 - 35 = 8 - 12 + t
What does t mean?

Answers

I think t = 11:
42 - 35 = 8 - 12 + t
7 = 8 - 12 + t
7 = -4 + t
7 + 4 = t
11 = t

Im sorry if this is wrong

The number of carbon atoms in a fossil is given by the function [tex]y = 5100(0.95)^{x}[/tex], where x represents the number of years since being discovered. What is the percent of change per year? Explain how you arrived at your answer.

Answers

Answer:

[tex]\%x=5\%[/tex]

Step-by-step explanation:

From the question we are told that:

Carbon atoms in fossil function

[tex]y=5100(0.95)^x[/tex]

 

Generally the equation a 2 year change is mathematically given by

For[tex]x=1[/tex]

[tex]y_1=5100(0.95)^1\\y_1=4845[/tex]

For [tex]x=2[/tex]

[tex]y_2=5100(0.95)^2\\y_2=4602.75[/tex]

Generally the equation percentage year changes [tex]\%x[/tex] is mathematically given by

[tex]\%x=\frac{y_1-y_2}{y_1} *100[/tex]

[tex]\%x=\frac{4845-4602.75}{4845} *100[/tex]

[tex]\%x=5\%[/tex]

Therefore  the percent of change per year is

[tex]\%x=5\%[/tex]

if x degree and 115 degree are co exterior angles find the vaule of x degree

Answers

Answer:

65 degrees

Step-by-step explanation:

An exterior angle form a linear pair with an interior angle.

A linear pair of angles must add up to 180 degrees

180-115 = 65

The price of 1 kg of silver on 1st January 2010 was $607
By 1st January 2015, the price of 1 kg of silver had decreased by 9.4%
Work out the price of 1 kg of silver on 1st January 2015.
Give your answer correct to the nearest dollar ​

Answers

Answer:

550

Step-by-step explanation:

9.4/100 multiplied by 607 is 57

subtract this from 607 and the answer is 549.9, to the nearest dollar is 550

what is the ratio of the size of the two amoeba​

Answers

Answer:

between 200 750 is the answer

PLEASE HELP 3. what is the source of the line that contains the coordinate points (8, -3) and (-2, 7)

Answers

9514 1404 393

Answer:

  -1

Step-by-step explanation:

The slope of a line between two points is given by the slope formula:

  m = (y2 -y1)/(x2 -x1)

  m = (7 -(-3))/(-2 -8) = 10/-10

  m = -1

The slope of the line is -1.

PLEASE GIVE RIGHT ANSWER Triangle EFG has coordinates E (0, 0), F (0, 2), and G (3, 0). If ΔEFG ≅ ΔXYZ, what is the measure of XY? 1.5 units 2 units 3 units 3.5 units

Answers

Answer:

2 units

Step-by-step explanation:

Congruent triangles are those triangles, which have same shape & size (same side & angle size).

If  ΔEFG ≅ ΔXYZ. And, E (0, 0), F (0, 2), and G (3, 0)

So, length EF = length XY.

Length of E (0,0) & F (0,2) is 2 units

As triangles are congruent, EF = XY

Hence, measure of XY = 2 units

Answer:

2 units

Step-by-step explanation:

621.72 round to the nearest whole number

Answers

Answer:

622

Step-by-step explanation:

Please mark brainliest

Answer:

Hi! The answer to your question is 622

Step-by-step explanation:

☆*: .。..。.:*☆☆*: .。..。.:*☆☆*: .。..。.:*☆☆*: .。..。.:*☆

☆Brainliest is greatly appreciated!☆

Hope this helps!!

- Brooklynn Deka

100 POINTS! :)
Please answer the question correctly WITH WORK...otherwise I will report! :)

Joshua has a ladder that is 12.8 ft long. He wants to lean the ladder against a verticle wall so that the top of the ladder is 11 ft above ground. For safety reasons, he wants the angle of the ladder no greater than 75 degrees. Will the ladder be safe at this height? Show your work.

Answers

Answer: So we'll use trig to solve this because it's a right triangle. The hypotenuse is the ladder (h) and the two smaller sides are the ground and the vertical wall (w).

That angle ladder makes with the ground = €

SOH: sin € = opposite/hypotenuse

No the ladder won't be safe!!!

Now let's make it safe:

The ladder's length (w) is constant, so stays 12

So now let's ask in an inequality what height will be safe (75° or less)

what does that mean?? well as long as you put the ladder against the wall so that the height from ground to top of the ladder is < 11.6 ft!!

Hope that helps! :-D

Step-by-step explanation:

The larger of 2 numbers is twice the smaller. If the larger is x, what is the smaller

Answers

Answer:

Step-by-step explanation:

x/2

Finding X in triangle

Answers

Answer:

x is 5 cm as the entire base is 10 cm, so 10/2 = 5

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Answers

Answer:

C

Step-by-step explanation:

please can someone help my assignment in math​

Answers

Answer/Step-by-step explanation:

1. B = 180 - (90 + 58) (sum of triangles)

B = 32°

Let's find a and b using trigonometric ratios:

Reference angle = 58°

Opposite = a = ?

Hypotenuse = c = 27

Adjacent = b = ?

✔️To find a, apply SOH:

Sin 58 = Opp/Hyp

Sin 58 = a/27

a = 27*Sin 58

a = 22.8972986 ≈ 22.9 (nearest tenth)

✔️To find b, apply CAH:

Cos 58 = Adj/Hyp

Cos 58 = b/27

b = 27*Cos58

b = 14.3 (nearest tenth)

2. B = 180 - (90 + 63) (sum of triangles)

B = 27°

Let's find a and b using trigonometric ratios:

Reference angle = 63°

Opposite = a = 11

Hypotenuse = c = ?

Adjacent = b = ?

✔️To find b, apply TOA:

Tan 63 = Opp/Adj

Tan 63 = 11/b

b = 11/Tan 63

b = 5.6 (nearest tenth)

✔️To find c, apply SOH:

Sin 63 = Opp/Hyp

Sin 63 = 11/c

c = 11/Sin 63

c = 12.3 (nearest tenth)

Please help!!!!!!!!!!!!!!!!

Answers

Answer: Shows us the pictures of the subsets.

Step-by-step explanation:

The price of an item has been reduced by 60%. The original price was $45. What is the price of the item now?​

Answers

Answer:

$27

Step-by-step explanation:

find the area of the circle r = 3 ft

Answers

Answer:

9π ft² or approximately 28.26 ft²

Step-by-step explanation:

The area of a circle is A=πr².

Plug 3 in for the radius.

A=π(3²)

A=9π ft²,

or using 3.14 for pi,

Approximately 28.26 ft².

Find the value of x in the triangle shown below.
24 74

Answers

Answer:

x =82

because 180 - (24 + 74)= 82

A city has a population of 310,000 people.Suppose that each year the population grows by 6.5% . What will the population be after 9 years?

Answers

Answer:

546,397 people

Step-by-step explanation:

We solve for the above question, using the formula for Exponential growth

The formula is given as

P(t) = Po (1 + r)^t

Po = Initial population = 310,000

r = Exponential growth rate = 6.5% = 0.065

t = Time in years = 9

P(t) = Population size after time t

Hence:

P(t) = 310,000 × (1 + 0.065)⁹

P(t) = 546,396.82088 people

Approximately =546,397 people

The population will be 546,397 people after 9 years.

can u please help to warn: No links or I will report thank you, and have a blessed day!!

Answers

Answer:

1.) 1/4

2.) 5/12 i am not sure about this one

Step-by-step explanation:

1.) Chance of tales:

Chance of even number: 3/6 or 1/2

Multiply: (1/2)(1/2) = 1/4

the sum of twice a number and 11 is equal to 55

Answers

Answer:

Equation: 2x+11=5

Solving the equation: x=22

Step-by-step explanation:

The sum of twice a number is 2x+

The sum of twice a number and 11 is 2x+11

The sum of twice a number and 11 is equal to 55 is 2x+11=55

Solving the equation: 2x+11-11=55-11

2x=44

2x/2=44/2

x=22

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