an elevation
elevation of 20.5 m
of 15 m and an

Answers

Answer 1

The angle of elevation made from the eyes of the observer to the top of the tower is 45°.

What is defined as the term angle of elevation?

The angle of elevation is the angle formed by the horizontal line of sight and the upward line of sight.

For the given question;

The height of the observer is 1.5 meters.The height of the tower is given as 22 meters.The distance of the tower from the observer is 20.5 meter.

The angle of elevation of the top of the tower to the eyes of the observer is needed.

Thus, for this subtract the height of the observer to the height of tower;

height from the eyes to the tower is 22 - 1.5 = 20.5 m.

Thus, apply the trigonometric rule to calculate the angle;

tan Ф = perpendicular/base

perpendicular is the height of tower from the eyes of boy = 20.5 meter.

base is the distance of the tower from the boy = 20.5 meter.

Put the values;

tan Ф = 20.5/20.5

tan Ф = 1

Ф = 45°.

Thus, the angle of elevation made by the eyes of the observer to the top of the tower is  45°.

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The complete question is -

An observer 1.5 metres tall is 20.5 metres away from a tower 22 metres high. Determine the angle of elevation of the top of the tower from the eye of the observer.


Related Questions

Maya is 12 years old and Sophia is 15 years older than Maya. In how many years will Sophia be twice has old as Maya

Answers

Sophia will be twice as old as Maya in 3 years  

Solving equations

From the question, we are to determine the number of years when Sophia will be twice as old as Maya

From the given information,

"Maya is 12 years old"

and

"Sophia is 15 years older than Maya"

Thus,

Sophia is 12 + 15 years

Sophia is 27 years

Let the number of years when Sophia will be twice as old as Maya be x

Then,

27 + x = 2(12 + x)

Solve for x

27 + x = 24 + 2x

27 - 24 = 2x - x

3 = x

x = 3

Hence, Sophia will be twice as old as Maya in 3 years  

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please help if know how to solve

Answers

Answer: 12x+17

Step-by-step explanation:

(hog)(x)=

h(g(x))=

h(4x+5)=

3(4x+5)+2=

12x+15+2=12x+17

Answer:

honestly, I don’t think I’m right

Step-by-step explanation:

There are N coins, each showing either heads or tails. We would like the number of coins showing heads to be equal to the number showing tails. What is the minimum number of coins that mmust be turned over?
Write a function:
int solution (vector &A);
that, given an array A consisting of N integers representing the coins,
returns the minimum number of coins that must be flipped.
Consecutive elements of array A represent consecutive coins, and contain either a 0 (heads) or a 1 (tails).
Examples:
1. Given array A = [1, 0, 0, 1, 0, 0], there are four coins showing heads and two showing tails. The function should return 1, as after reversing one of the coins showing heads, there will be three coins showing heads and three showing tails.

Answers

Array A = [1, 0, 0, 1, 0, 0], there are four coins showing heads and two showing tails.

def solution(A):

n = len(A)

dp = [[0 for x in range(2)] for y in range(n)]

if A[n-1] == 0:

  dp[n-1][0] = 0

  dp[n-1][1] = 1

else:

  dp[n-1][0] = 1

  dp[n-1][1] = 0

for i in reversed(range(len(A)-1)):

  if A[0] == 0:

    dp[i][0] = dp[i+1][1]

    dp[i][1] = dp[i+1][0] + 1

  else:

    dp[i][0] = dp[i+1][1] + 1

    dp[i][1] = dp[i+1][0]

return min(dp[0][0], dp[0][1])

An array of computer drives is a collection of two or more drives that operate as a single drive. For instance, in a RAID array, a user may make use of numerous drives that are mirror images of one another to help secure the data stored on the drives.

A data structure called an array consists of a set of elements (values or variables), each of which is identifiable by an array index or key. Depending on the language, additional data types that describe aggregates of values, such lists and strings, may overlap (or be associated with) array types.

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Dosage 2 tablets, 4x per day 26 tablets per bottle

Answers

4x26= 104
104x2= 208

208 pills a day

Use identities to determine the six trigonometric function values for the given angle and given information.
Give exact values for answers.
sin (0) = //
and cos (0) < 0
Rema

Answers

Explain more please I would say 0 for how it looks

on the way to the mousetrap car contest the judge drove from Exit 32 on the highway to exit 170 in 2 hours. exita 32 and 170 are 138 miles apart. did the judge follow the speed limit of 65 mph? explain

Answers

Answer: The judge did not follow the speed limit of 65mph because if she did she would have not gotten there in 2 hours. The judge was actually going at 85 mph.

Step-by-step explanation:

The length of a certain rectangle is 10m greater than twice its width. If the width were reduced by 20m and the length increased by 100m, the perimeter of the new rectangle would be twice the perimeter of the original rectangle. What are the dimensions of the original rectangle?

Answers

The dimensions of the original rectangle is a length of 56.66 meter and width of 23.33 meter.

What is perimeter?

Perimeter is the sum of all the sides of a two dimensional polygon or shape.

For first rectangle let x represent width:

Length = 2x + 10; width = x

Perimeter = 2(length + width)

Perimeter = 2(2x + 10 + x) = 6x + 20

For second rectangle:

Length = 2x + 10 + 100 = 2x + 110; width = x - 20

Perimeter = 2(length + width)

Perimeter = 2(2x + 110 + x - 20) = 6x + 180

the perimeter of the new rectangle would be twice the perimeter of the original rectangle. Hence:

6x + 180 = 2(6x + 20)

x = 23.33 m, length = 2x + 10 = 56.66

The dimensions of the original rectangle is a length of 56.66 meter and width of 23.33 meter.

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Jakob is working on his math homework. He decides that the sum of the expression? 1/3+6

Answers

No, jacob is not correct.

What is a fraction?

A fraction consisting of a quotient and remainder is a mixed fraction. we can convert the mixed fraction to improper fraction by first dividing the numerator by denominator and then taking the quotient as whole number and remainder as the numerator of proper fraction keeping the denominator same.

We are given that;

Expression= 1/3 + 6sqrt5/7

Now,

The sum of the expression 1/3 + 6sqrt5/7 is not rational, even though it is a fraction. A rational number is a number that can be written as the ratio of two integers, such as 1/3 or -4/5. An irrational number is a number that cannot be written as the ratio of two integers, such as sqrt2 or pi.

The expression 1/3 + 6sqrt5/7 contains an irrational term, 6sqrt5/7. This term cannot be simplified to the ratio of two integers, because sqrt5 is irrational. Therefore, adding this term to 1/3 does not make it rational. The sum of a rational and an irrational number is always irrational.

Therefore, by the fraction the answer will be No.

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Explore and describe the similarities, differences, and interplay between weighted voting, fair division and apportionment.

Answers

Weighted vote is the policy of law-making where each representative has a variable voting power.

How to illustrate the information?

A policy- or law-making body may use weighted voting, where each representative has a variable voting power (weighted vote) based on the number of principals who have designated them as their proxy or the size of the electorate they represent.

The challenge of distributing resources fairly among a group of individuals is to ensure that each person is given their fair share. This is fair division.

Representatives are apportioned among the states in order to create a fair split or distribution. This is apportionment.

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How do you find the quotient of 45/9

Answers

The quotient of the given fraction 45/9 is 5.

What is division?The division is one of the four basic operations of arithmetic, which are the methods by which numbers are combined to form new numbers. Addition, subtraction, and multiplication are the other operations.At the most basic level, the division of two natural numbers is the process of calculating the number of times one number is contained within another.

Quotient:

A quotient is a quantity produced by the division of two numbers in arithmetic. The quotient is widely used in mathematics and is also known as the integer part of a division, a fraction, or a ratio.

So, the quotient of 45/9 is 5 as:
45 ÷ 9 = 5

(Refer to the picture given below for working)

Therefore, the quotient of the given fraction is 5.

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log 5 = 0.69897, log 3 = 0.47712 and log 2 = 0.30103. evaluate log 4 and log 15​

Answers

Answer: log4=0.60206    log15=1,17579

Step-by-step explanation:

[tex]log4=\\log2^2=\\2log2=\\2(0.30103)=\\0.60206\\\\log15=\\log(3*5)=\\log3+log5=\\0.47712+0.69897=\\1.17579[/tex]

f(1)=30,f(n)=2xf(n-1)-50

Answers

Answer: f(0)=40/x

Step-by-step explanation:

f(n)=2xf(n-1)-50

f(1)=2xf(1-1)-50

f(1)=2xf(0)-50

30=2xf(0)-50

2xf(0)=80

f(0)=80/(2x)

f(0)=40/x

Which strategy for multiplying 75 and 63 should result In the correct product

Answers

With the partial product method the multiplication answer is 4725.

According to the statement

We have to find that the by which strategy for multiplying 75 and 63 should result In the correct product.

So, For this purpose, we know that the

The partial product method involves multiplying each digit of a number in turn with each digit of another where each digit maintains its place.

From the given information:

We have to multiply the numbers 75 and the 63.

Then

According to the above written strategy,

75 = 70+5 and

63 = 60+3

Then

75*63 = (70*60) + (70*3) + (5*60) + (5*3)

then solve it

75*63 = (4200) + (210) + (300) + (15)

75*63 =  4410 +  315

75*63 =  4725.

So, With the partial product method the multiplication answer is 4725.

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big stonez post the lyrics for brainliest

Answers

The lyrics for what song are you talking about. Good luck. To you tho and in your class or whatever you r doing

Find the value of x the diagram is not a scale
○ 83
○ 97
○ 132
○ 41

Answers

Answer:

132

Step-by-step explanation:

.....................................

In an equilateral triangle, all side lengths are equal and all angle measures are equal. Sketch an equilateral triangle. What are the measures of its angles??

Answers

Answer:

every angle equals 60°

Step-by-step explanation:

the sum of angles of any triangle is 180 so the equilateral triangle have all angles equal so 180 ÷ 3 = 60

All my points please help! Given a unit circle, what is the value for y?

Answers

the value of y for the given circle will be 1 / 50 ( approx).

We are given a unit circle.

So, we get that:

centre = (0, 0)

Equation of the circle will be

x² + y² = 1

Now, we have a point (- 17 / 20, y)

Substituting the values in the equation, we get that:

(- 17 / 20)² + y² = 1

343 / 400 + y² = 1

y² = 57 / 400

y = 1 / 50 ( approx)

Therefore, we get that, the value of y for the given circle will be 1 / 50 ( approx).

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Answer: top one is 111 dont know bottom

Step-by-step explanation:

<3

Gind the greatest common factor for the list of terms.
98ab^3, 84a, 140b, 112ab​

Answers

Answer:

  14

Step-by-step explanation:

You want the greatest common factor of the terms {98ab^3, 84a, 140b, 112ab​}.

Common factors

There are no variables that are common to all terms. 'a' and 'b' are each common to 3 of the 4 terms, but not all.

The greatest common factor of the constants cannot be larger than the smallest difference of the constants. That difference is ...

  98 -84 = 112 -98 = 14

Since 14 is a divisor of all of the constants, 14 is the greatest common factor.

__

Additional comment

Factoring out the greatest common factor, we have ...

  = 14{7ab³, 6a, 10b, 8ab}


A design for a library has a scale of 1/3 in= 1ft. The height of the library in the drawing is 12 inches. What is the
actual height of the library?

Answers

A library's design is scaled at  [tex]\frac{1}{3}[/tex] inch = 1 feet. The library in the drawing is 12 inches height. The library's true height is 432 inches, or 36 feet.

Given that,

A library's design is scaled at  [tex]\frac{1}{3}[/tex] inch = 1 feet.

The library in the drawing is 12 inches height.

We can take  [tex]\frac{1}{3}[/tex] inch = 1 feet

1 inch=3 feet = 36 inches.

36 inches is the actual height .

Now actual height of the library is

Multiplication of the height of the library in the drawing is 12 inches and the new height 36 inches.

12[tex]\times[/tex]36=432 inches

We can say 432 inches is equal to 36 feet.

Therefore, 432 inches or 36 feet is the actual height of the library.

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What are the solutions to the equation x-7/x=6?
x=-7 and x=1
x=-6 and x=-1
x=-1 and x=7
x=1 and x=6

Answers

Answer:

x=7

7-7/7-6=0

0/1=0

Zero divided by anything=0

Which expression is equivalent to



A:4x
B:4x+4
C:x^2+7x+10
D:-x^2-5x-6

Answers

Answer:

A

Step-by-step explanation:

x + 2 + [ 4x - [tex]\frac{x^2+6x+8}{x+4}[/tex] ] ← factorise the quadratic on the numerator

= x + 2 + [ 4x - [tex]\frac{(x+4)(x+2)}{x+4}[/tex] ] ← cancel (x + 4) on numerator/denominator

= x + 2 + (4x - (x + 2)

= x + 2 + 4x - x - 2 ← collect like terms

= 4x

A circle has a diameter with endpoints
at A (-3, -12) and B(-7, 4). The point
M(-5, -4) lies on the diameter
What is the distance from A to M (Round to 2 decimal place
What is the distance from B to M (Round to 2 decimal places)

Answers

The measure of AM and BM from the given coordinate points are 8.37 units respectively

Distance between coordinates

The formula for calculating the distance between coordinate points is expressed according to the equation

D = √(x₂-x₁)²+(y₂-y₁)²

Given the coordinate points A (-3, -12) and M(-5, -4). The measure of the distance AM is expressed as:

AM = √(-4+12)²+(-5+3)²

AM = √(8)²+(-2)²

AM =  √70

AM = 8.37 units

Similarly;

Given the coordinate points B(-7, 4). and M(-5, -4). The measure of the distance AM is expressed as:

BM = √(-4-4)²+(-5+7)²

BM = √(-8)²+(2)²

BM =  √70

BM = 8.37 units

Hence the measure of AM and BM from the given coordinate points are 8.37 units respectively

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The cost of a dozen eggs is $2.50. At this store you must by them in packs by the dozen and they do not allow you to buy more than 6 dozen eggs at a time. State a reasonable domain for this situation.

Answers

The reasonable domain for this situation is { 1, 2, 3, 4, 5, 6 }.

What is a set ?

A set is a well defined collection of objects.Set are represented by many forms two of them are set builder form and roaster form.

According to the given question The cost of a dozen eggs is 2.50 dollars.

At this store you must by them in packs by the dozen and they do not allow you to buy more than 6 dozen eggs at a time,So we can buy eggs in dozen from 1 dozen to 6 dozen.

This can be represented in roaster form by { 1, 2, 3, 4, 5, 6 }.

This can also be represented by set builder form as { x : x ∈ N and 1≤x≤6 }  

where x represents no. of dozens of egg.

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help pleaseeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee

Answers

Step-by-step explanation:

f(x) = 4x + 15

6x - 3

if x = -1 (replace x with -1 )

f(-1) = 4(-1) + 15

6(-1) -3

= -4 + 15

-6 -3

= -11

-9

"minus cancel each other when dividing"

Answer = 11

9 or 1.22

Hope this helps ...:⁠-⁠)

Use z scores to compare the given values.
K
In a recent awards ceremony, the age of the winner for best actor was 31 and the age of the winner for best actress was 42. For all best actors, the mean age is 42.4 years and the
standard deviation is 8.2 years. For all best actresses, the mean age is 31.6 years and the standard deviation is 10.3 years. (All ages are determined at the time of the
awards ceremony.) Relative to their genders, who had the more extreme age when winning the award, the actor or the actress? Explain.
Since the z score for the actor is z= and the z score for the actress is z-, the
had the more extreme age.

Answers

So the best actor's age deviates from the mean, he receives the award at the most extreme age.

What is defined as the z score?The z-score of a way of measuring X in a set with mean and standard deviation is given by: z = (x - μ)/σ.The Z-score indicates how far the measure deviates from the mean. After determining the Z-score, we examine the z-score table to determine the p-value connected with this z-score. This p-value represents the probability also that measure's value is less than X, or the percentile of X. Subtracting 1 from the p-value yields the probability that measure's value is greater than X.

In response to this question:

Whichever z-score does have the highest absolute value, such that, the one that deviates the most from the mean, has a most extreme age.

Best actor: 31 years old, so.

The mean age of the best actors is 42.2 years, with a standard deviation of 8.2 years.

z = (x - μ)/σ

Put the values;

z = (31 - 42.2)/ 8.2

z = -1.36

Best actress:

So, at the age of 42,

The mean of the best actresses is 31.6 years, with a standard deviation of 10.3 years.

z = (x - μ)/σ

Put the values;

z = (42 - 31.6)/10.3

z = 1.01

Thus, Because the best actor's age is further from the mean, he has the most extreme age when receiving the award.

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Select all the expressions equivalent to (81)3/5
((81)1/5)3
0 ((81)1/3)5
((81)1/3)5
((81)5)1/3
3(81)5
5(81)³

Answers

((81)1/5)3
1/5 multiplied by 3 is 3/5, which is then multiplied by 81. The expressions are equal

what do i write in the blank and how do i solve

Answers

Answer:

I know that the inequality is 85-4x<40

but im not sure on how to solve it, i think the answer is  12

becuase

85-4(12)< 40

85-48<40

37<40

Step-by-step explanation:

Answer:  85 - 4x < 40; 11

Step-by-step explanation:

85 - 4x < 40

-85          -85

    - 4x < -45  

[When dividing a negative number, change the inequality sign to the opposite sign.]

         x >  11.25  

The the cars was integer, and x is greater than 11.25, therefore, Mr.Schwantz will need to order more wheels after building 11 cars.

If AB = 12 and BC = 3, what is AC?

Answers

Answer: AC=15

Step-by-step explanation:

AC=AB+BC

AC=12+3

AC=15

Answer:

[tex]\frac{36}{B^2}[/tex]

Step-by-step explanation:

Given:

[tex]AB=12\\BC=3[/tex]

Find:

[tex]AC[/tex]

First, arrange equation 1 to isolate A by dividing both sides by B:

[tex]AB=12\\A=\frac{12}{B}[/tex]

Then, arrange equation 2 to isolate C by dividing both sides by B:

[tex]BC=3\\C=\frac{3}{B}[/tex]

Now, multiply A and C together and simplify:

[tex]AC=\frac{12}{B}*\frac{3}{B}[/tex]

[tex]AC=\frac{36}{B^2}[/tex]

When an automobile travels uphill or downhill on a highway, it experiences a force due to gravity. This force in pounds is called grade resistance and is modeled by the equation below, where theta is the grade and W is the weight of the automobile.
F = Wsin theta
A 2710-lb car traveling uphill has a grade resistance of 160 lb. What is the angle of the grade?
theta =__.
(Type your answer in degrees. Round to the nearest hundredth as needed.)

Answers

Based on the calculations, the angle (θ) of the grade to the nearest hundredth is equal to 3.38 degrees.

What is an equation?

An equation can be defined as a mathematical expression which shows that two (2) or more thing are equal.

In Science, grade resistance simply refers to force in pounds and can be modeled by the following equation:

F = Wsinθ

Where:

F represents the grade resistance or force in pounds.θ represents the grade W represents the weight of a physical object.

Making theta (θ) the subject of formula, we have:

θ = sin⁻¹(F/W)

Substituting the given parameters into the formula, we have;

θ = sin⁻¹(160/2710)

θ = sin⁻¹(0.0590)

Theta, θ = 3.38 degrees.

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 If a student has a GPA of 3.0, the student gets the “good student discount”, which is a discount of 20%. Write a function that represents the discount on the monthly premium for a “good student”. call this function S.

Answers

S(x) + 0.20(x/12) = 0

S(x) = -0.20(x/12) it is a function that represents the discount on the monthly premium for a “good student.

From the question,

A student has a GPA of 3.0 gets good student discount of 20%

Write a function with ‘S’  that represents the discount of the monthly premium for a good student.

S(x) = -0.20(x ÷ 12)

S(x) is a function and student got a discount of 20%.

i.e., 20/100 = 0.20

The function that represents the discount on the monthly premium so x/12  

An expression, rule, or law in mathematics that specifies the relationship between an independent variable and a dependent variable (the dependent variable). In mathematics and the sciences, functions are fundamental for constructing physical relationships.

Hence, it s a function that represents the discount on the monthly premium for a “good student.

S(x) + 0.20(x/12) = 0

S(x) = -0.20(x/12)

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Give two examples of how the biosphere supports life. What is the sandbox detection method known as? select one: rule-based detection signature-based detection check sum detection heuristic detection Concentrated hydrochloric acid is approximately 12.2 M. If a student needs to prepare 250. mL of 0.500 M hydrochloric acid, what volume (mL) of concentrated acid is needed? Three consecutive odd integers are such that the square of the third integer is 15 greater than the sum of the squares of the first two. One solution is 3, 5, and 7. Find three other consecutive odd integers that also satisfy the given conditions. Which variable name is correct from the point of view of the generally accepted javascript style of variable names? What drives motility in sporozoa?a. flagella b. pseudopodia c. cilia d. sporozoa are non-motile Diego is warming up to compete in a 3,200-meter race. Although he'll need to pace himself to go the distance, he also needs to run faster than his competitors. Will Diego be using aerobic or anaerobic exercise during the race? PLSS HELP!!! both neither only aerobic only anaerobic Convert R57 894 to dollars if the exchange rate is R7,30 = 1 dollar. If an individual with type o blood mates with an individual with type ab blood, what are the possible blood phenotypes of their offspring?. Fill in the blank of any operations and make sure to use (). 4 ? 2 ? 3 = -2 What two major policy shifts in 1758 improved Britain's standing in the French and Indian War?- Britain secured a temporary alliance with Spain, which agreed to provide additional weapons and soldiers to fight the French.- British colonists improved their relationships with Native Americans in the Ohio territory by honoring land claims and returning land.- Parliament used deficit spending to cover the material costs of the war.- Britain sent ten thousand British soldiers to North America to augment colonial forces. A unit rate is a rate at which the the comparison is one unit. Answer the following subject Thanks How did European exploration affect the Americas?HELP FOR FREE BRAINLISTA Europeans brought gold and silver, making Native Americans wealthier. B Europeans introduced democratic government, convincing the Native Americans to ban slavery. C Europeans brought potatoes and corn, helping to feed the Native Americans. D Europeans brought diseases, killing many Native Americans. the process by which a cell engulfs a foreign particle is known as: Do any points remain invariant under glide reflections? under compositions of transformations? Explain. Consider this skeleton equation: NaOH + H2SO4 Na2SO4 + H2OWhich of the following is the correct, balanced chemical equation? Referring to the figure, find the area of the parallelogram shown.Round to the nearest tenth if necessary. a. 49 ft2 c. 81 ft2 b. 63 ft2 d. 16 ft2 Arranging delivery of products to customers constitutes ________ in value chain analysis. group of answer choices outbound logistics delivery inbound logistics shipping A rectangualr field has a perimeter of 150m The field is 15 metres longer than it is wide . The width of the field is x metres