A water tower 30 m tall is located at the top of a hill. From a distance of D = 125 m down the hill, it is observed that the angle formed between the top and base of the tower is 8°. Find the angle of inclination of the hill. Round your answer to the nearest tenth degree.

Answers

Answer 1

Answer:

the angle of inclination of the hill is 46.56°

Step-by-step explanation:

  Given the data in the question;

Just as illustrated in the diagram below

so to find the angle of inclination of the hill;

sinA/30 = sinB/125

since angle BAC  is 8°

we substitute

sin8°/30 = sinB/125

sinB = ( sin8°/30 ) × 125

B = sin⁻¹ ( ( sin8°/30 ) × 125 )

B = sin⁻¹ ( 0.004639 × 125 )

B =  35.44°

so since the some of a the angles of a triangle is 180;

A + B + C = 180

8° + 35.44° + C = 180

C = 180 - ( 8° + 35.44° )

C = 136.56°  

Hence, Angle of inclination x will be;

x = 136.56° - 90°

x = 46.56°

Therefore, the angle of inclination of the hill is 46.56°

A Water Tower 30 M Tall Is Located At The Top Of A Hill. From A Distance Of D = 125 M Down The Hill,

Related Questions

please help!!! thank you!!!

Answers

uhm... I’m sorry I don’t actually know the answer to your question but I’m trying to get some points...

Question 3 (5 points)

(02.01 MC)

Which of these is a positive externality of carpooling with friends to work?

оа

Reduced commute time

Ob

Reduced driving focus

Ос

Reduced traffic on the road

Od

Reduced time to socialize

Answers

Answer:

reduced traffic on the road

Step-by-step explanation:

just took the test :)

Answer: C) Reduced traffic on the road

Step-by-step explanation: Ive taken this test

Pls help me on this due in 10 mins

Answers

Answer:

A, E, G

Step-by-step explanation:

Answer:

A

E

G

Step-by-step explanation:

When you divide A, E, and G with the common factor, they all equal 5 : 9

868 ÷ 14 = ?? i need help lol

Answers

Answer:

**********************868/14=62********************

Step-by-step explanation:

Answer:

+*~868 ÷ 14 = 62~*+

(Hope this helps! Btw, I answered first. Brainliest please! :D)

Find the 9th term of the geometric sequence 8, 32, 128, ...

Answers

Answer:

524,288

Step-by-step explanation:

Hope this helps!

Find the equation of the line

Use exact numbers

I thank you very very much in advance!

Answers

Answer:

y = 3/4x -2

Step-by-step explanation:

Points on the graph: (4, 1) and (0, -2)

Slope:

m=(y2-y1)/(x2-x1)

m= (-2-1)/0-4)

m=(-3)/(-4)

m = 3/4

Point-slope:

y - y1 = m(x - x1)

y - 1 = 3/4(x - 4)

y - 1 = 3/4x - 3

y = 3/4x -2

In AMNO, the measure of O=90°, the measure of N=31°, and OM = 11 feet. Find
the length of MN to the nearest tenth of a foot.

Answers

Answer:

21.4

Step-by-step explanation:

just trust me i come from DeltaMAth

help me and thank you

Answers

I believe it’s (b) I think

Answer:

15.736

Step-by-step explanation:

The perimeter of a rectangular backyard is 192 feet. The yard is 43 feet wide. How long is it?

Answers

Answer:

53 feet.

Step-by-step explanation:

2(Width)+2(Length)=Perimeter

--> 2(43)+2(Length)=192

--> 86+2(Length)=192

--> 2(Length)=106

Length = 53

Lewis is constructing triangle RST.

In the picture, what step is he doing now with his protractor?
A. drawing a line segment from point R to point S
B. checking the angle measure of angle T
C. drawing a line from point R through point T
D. checking the length of side ST

Answers

Answer:

B. checking the angle measure of T

Step-by-step explanation:

I used process of elimination, A and C are both incorrect because to draw a line you would have the flat side of the protractor along the edge of the line and this is not shown in the image. D is incorrect because to check the length you would need the have a ruler on the flat side and use that or use a separate ruler.

Option B is correct,  checking the angle measure of angle T is the step is he doing now with his protractor

What is Mensuration?

Measurement is the quantification of attributes of an object or event, which can be used to compare with other objects or events.

Given that Lewis is constructing triangle RST.

A triangle is a three-sided polygon that consists of three edges and three vertices.

drawing a line segment from point R to point S is not correct as we can use straight edge to draw the line.

In the same way  drawing a line from point R through point T is also not correct.

checking the length of side ST can be done by straight edge.

As we observe Lewis is using a protractor which is used to measure the angle.

Hence, checking the angle measure of angle T is the step is he doing now with his protractor

To learn more on Mensuration click:

https://brainly.in/question/640489

#SPJ3

There are 3 boxes for green chips and 5 boxes for red chips. each box has the same number of chips in it. if there are a total of 16 chips complete the tape diagram showing the number of chips in each box.

Answers

Answer:

2 in each box of course

g= green chips       r= red chips

3 boxes of green chips meaning for each box there are 2 chips so there are 6 green chips. 5 boxes of red chips meaning for each box there are two chips so there are 10 red chips and 6 g + 10r = 16 chips in total

Step-by-step explanation:

so 29 is a monomial also​

Answers

Answer:

yes, 29 is a monomial

Step-by-step explanation:

7 in.
5 in.
7 in.
5 in.
The perimeter?

Answers

Answer:

The perimeter is:

24

Step-by-step explanation:

Perimeter is the outside frame of the area. Add the dimensions together to get your answer. Adding:

7+7= 14

5+5= 10

10+14= 24

:) Hope this helps have a wonderful day!

24

7•2=14
5•2=10
14+10=24

basically everything is in the picture PLEASE HELP me with those THREE questions ASAP ​

Answers

The area of the rectangle is

12cm x 4cm=48cm

Area of the triangle

9 x 4/2=18

The shadowed

48-18=30 cm

Good luck!

E is directly proportional to f.it E is 24 then f is 6 what is E when f is 24​

Answers

Answer:

E = 96

Step-by-step explanation:

Given the following data;

E = kf .......equation 1.

When E = 24, f = 6

First of all, we would have to find the constant k;

Substituting the values into eqn 1, we have;

24 = k6

k = 24/6

k = 4

To find the value of E, when f = 24

E = kf

Substituting into the equation, we have;

E = 4*24

E = 96

What is the missing polynomial -(20-4x-5x2)=20-7x2

Answers

Answer:

? – (20 – 4x – 5x2) = 20 – 7x2, so ?  = 20 – 7x2 + (20 – 4x – 5x2)

?  = 20 – 7x2 + (20 – 4x – 5x2)=20-7x²+20-4x-5x²=40-12x²-4x

the answer is 40-4x-12x^2

Step-by-step explanation:

Answer:

40-4x-12x^2

Step-by-step explanation:

PLEASE HELPPPPPPPP !!!!!!!!!!!!!!1

Answers

Answer:

-8.45, 0.95, 8.25

Step-by-step explanation:

The easiest way to do this is to convert the fraction to a decimal, and then compare the values.

8 8/32 is equal to 8 and 1/4. Because 1/4 = 0.25, 8 and 8/32 equals 8.25.

Now, let's compare values.

Numbers we need to compare: -8.45, 0.95, 8.25

The smallest number is -8.45, then 0.95, and lastly, 8.25.

Thus the answer is

-8.45, 0.95, 8.25

HELP PLZ 3MINS ITS DUEE

Answers

Answer:

11

Step-by-step explanation:

1/2 times 2³=4

+7=11

Find the area of the figure.

Answers

Answer:

180 sq.cm

Step-by-step explanation:

A = 10 x 10 + 16 x 5 x 1/2 x 2

A = 100 + 16 x 5

A = 100 + 80

A = 180 square cm

Hope that helps!

16+10+10+36

Answer:36


BRAINLIEST AND 10 POINTS
When comparing the results of multiplying polynomials using the horizontal method and the vertical method, ____________.

1. the results will never be the same.
2. the vertical method will be correct only when the polynomials have no more than three terms.
3. the horizontal method will be correct when the polynomials have no more than three terms.
4. the results will be the same.

Answers

Answer:

#3 is the answer

Step-by-step explanation:

Find the area of the region enclosed by the graphs of these equations. (CALCULUS HELP)

Answers

Answer:

[tex]\displaystyle A = \frac{20\sqrt{15}}{3}[/tex]

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

BracketsParenthesisExponentsMultiplicationDivisionAdditionSubtractionLeft to Right

Equality Properties

Multiplication Property of EqualityDivision Property of EqualityAddition Property of EqualitySubtraction Property of Equality

Algebra I

Terms/CoefficientsGraphingExponential Rule [Root Rewrite]:                                                                   [tex]\displaystyle \sqrt[n]{x} = x^{\frac{1}{n}}[/tex]

Calculus

Derivatives

Derivative Notation

Derivative of a constant is 0

Basic Power Rule:

f(x) = cxⁿf’(x) = c·nxⁿ⁻¹

Area - Integrals

U-Substitution

Integration Rule [Reverse Power Rule]:                                                               [tex]\displaystyle \int {x^n} \, dx = \frac{x^{n + 1}}{n + 1} + C[/tex]

Integration Property [Multiplied Constant]:                                                         [tex]\displaystyle \int {cf(x)} \, dx = c \int {f(x)} \, dx[/tex]

Integration Property [Addition/Subtraction]:                                                       [tex]\displaystyle \int {[f(x) \pm g(x)]} \, dx = \int {f(x)} \, dx \pm \int {g(x)} \, dx[/tex]

Integration Rule [Fundamental Theorem of Calculus 1]:                                     [tex]\displaystyle \int\limits^b_a {f(x)} \, dx = F(b) - F(a)[/tex]

Area of a Region Formula:                                                                                     [tex]\displaystyle A = \int\limits^b_a {[f(x) - g(x)]} \, dx[/tex]

Step-by-step explanation:

Step 1: Define

F: y = √(15 - x)

G: y = √(15 - 3x)

H: y = 0

Step 2: Find Bounds of Integration

Solve each equation for the x-value for our bounds of integration.

F

Set y = 0:                                                                                                         0 = √(15 - x)[Equality Property] Square both sides:                                                          0 = 15 - x[Subtraction Property of Equality] Isolate x term:                                         -x = -15[Division Property of Equality] Isolate x:                                                        x = 15

G

Set y = 0:                                                                                                         0 = √(15 - 3x)[Equality Property] Square both sides:                                                          0 = 15 - 3x[Subtraction Property of Equality] Isolate x term:                                         -3x = -15[Division Property of Equality] Isolate x:                                                        x = 5

This tells us that our bounds of integration for function F is from 0 to 15 and our bounds of integration for function G is 0 to 5.

We see that we need to subtract function G from function F to get our area of the region (See attachment graph for visual).

Step 3: Find Area of Region

Integration Part 1

Rewrite Area of Region Formula [Integration Property - Subtraction]:     [tex]\displaystyle A = \int\limits^b_a {f(x)} \, dx - \int\limits^d_c {g(x)} \, dx[/tex][Integral] Substitute in variables and limits [Area of Region Formula]:     [tex]\displaystyle A = \int\limits^{15}_0 {\sqrt{15 - x}} \, dx - \int\limits^5_0 {\sqrt{15 - 3x}} \, dx[/tex][Area] [Integral] Rewrite [Exponential Rule - Root Rewrite]:                       [tex]\displaystyle A = \int\limits^{15}_0 {(15 - x)^{\frac{1}{2}}} \, dx - \int\limits^5_0 {(15 - 3x)^{\frac{1}{2}}} \, dx[/tex]

Step 4: Identify Variables

Set variables for u-substitution for both integrals.

Integral 1:

u = 15 - x

du = -dx

Integral 2:

z = 15 - 3x

dz = -3dx

Step 5: Find Area of Region

Integration Part 2

[Area] Rewrite [Integration Property - Multiplied Constant]:                       [tex]\displaystyle A = -\int\limits^{15}_0 {-(15 - x)^{\frac{1}{2}}} \, dx + \frac{1}{3}\int\limits^5_0 {-3(15 - 3x)^{\frac{1}{2}}} \, dx[/tex][Area] U-Substitution:                                                                                   [tex]\displaystyle A = -\int\limits^0_{15} {u^{\frac{1}{2}}} \, du + \frac{1}{3}\int\limits^0_{15} {z^{\frac{1}{2}}} \, dz[/tex][Area] Reverse Power Rule:                                                                         [tex]\displaystyle A = -(\frac{2u^{\frac{3}{2}}}{3}) \bigg|\limit^0_{15} + \frac{1}{3}(\frac{2z^{\frac{3}{2}}}{3}) \bigg|\limit^0_{15}[/tex][Area] Evaluate [Integration Rule - FTC 1]:                                                   [tex]\displaystyle A = -(-10\sqrt{15}) + \frac{1}{3}(-10\sqrt{15})[/tex][Area] Multiply:                                                                                               [tex]\displaystyle A = 10\sqrt{15} + \frac{-10\sqrt{15}}{3}[/tex][Area] Add:                                                                                                     [tex]\displaystyle A = \frac{20\sqrt{15}}{3}[/tex]

Topic: AP Calculus AB/BC (Calculus I/II)

Unit: Area Under the Curve - Area of a Region (Integration)

Book: College Calculus 10e

A public pool wants to rope off a section for children to swim. Three sides will be roped off using the lane line and the fourth will be contained by the pool edge. They have 60 ft of lane line. What is the maximum area they can enclose for children to swim safely?

Answer Choices: 60, 180, 450, 730

USE OPTIMIZATION

PLEASE HELP!

Answers

Answer:

180

Step-by-step explanation:

i had that question

Sumi earns $6.30 in 1/2 hr at her job at the Pet food store. If she works for 60 hours how much will she make in total?

Answers

Answer:

$756.00

Step-by-step explanation:

6.30 x 2 = 12.60/hour

12.60 x 60 = $756.00

Assume that each time a metal detector at an airport signals, there is a 25% chance that the cause is change in the passenger's pocket. During a given hour, 15 passengers are stopped because of a signal from the metal detector. a) Find the probability that at least 3 passengers will have been stopped due to change in their pockets. b) If 15 passengers are stopped by the detector, would it be unusual for none of these to have been stopped due to change in the pocket

Answers

Answer:

a) 0.7639 = 76.39% probability that at least 3 passengers will have been stopped due to change in their pockets.

b) 0 is less than 2.5 standard deviations from the mean, so it would not be unusual.

Step-by-step explanation:

For each passenger, there are only two possible outcomes. Either they will have been stopped due to a change in the pocket, or not. Passengers are independent. This means that we use the binomial probability distribution to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]

In which [tex]C_{n,x}[/tex] is the number of different combinations of x objects from a set of n elements, given by the following formula.

[tex]C_{n,x} = \frac{n!}{x!(n-x)!}[/tex]

And p is the probability of X happening.

The expected value of the binomial distribution is:

[tex]E(X) = np[/tex]

The standard deviation of the binomial distribution is:

[tex]\sqrt{V(X)} = \sqrt{np(1-p)}[/tex]

A measure is considered unusual if it is more than 2.5 standard deviations of the mean.

25% chance that the cause is change in the passenger's pocket.

This means that [tex]p = 0.25[/tex]

During a given hour, 15 passengers are stopped because of a signal from the metal detector.

This means that [tex]n = 15[/tex]

a) Find the probability that at least 3 passengers will have been stopped due to change in their pockets.

This is

[tex]P(X \geq 3) = 1 - P(X < 3)[/tex]

In which

[tex]P(X < 3) = P(X = 0) + P(X = 1) + P(X = 2)[/tex]

So

[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]

[tex]P(X = 0) = C_{15,0}.(0.25)^{0}.(0.75)^{15} = 0.0134[/tex]

[tex]P(X = 1) = C_{15,1}.(0.25)^{1}.(0.75)^{14} = 0.0668[/tex]

[tex]P(X = 2) = C_{15,2}.(0.25)^{2}.(0.75)^{13} = 0.1559[/tex]

[tex]P(X < 3) = P(X = 0) + P(X = 1) + P(X = 2) = 0.0134 + 0.0668 + 0.1559 = 0.2361[/tex]

[tex]P(X \geq 3) = 1 - P(X < 3) = 1 - 0.2361 = 0.7639[/tex]

0.7639 = 76.39% probability that at least 3 passengers will have been stopped due to change in their pockets.

b) If 15 passengers are stopped by the detector, would it be unusual for none of these to have been stopped due to change in the pocket

First we find the mean and the standard deviation:

[tex]E(X) = np = 15*0.25 = 3.75[/tex]

[tex]\sqrt{V(X)} = \sqrt{np(1-p)} = \sqrt{15*0.25*0.75} = 1.68[/tex]

3.75 - 2.5*1.68 = -0.45

0 is less than 2.5 standard deviations from the mean, so it would not be unusual.

HELP ITS TIMEDDDDDDDDDDDDDDDDD

Answers

Answer:

100

Step-by-step explanation:

18% of the cars in the parking lot are blue.If there are 150 cars in the parking lot,how many cars are blue​

Answers

27 mark brainiest please

find the gcf of -10c2 and 15 cd

Answers

Answer:

5cd

Step-by-step explanation:

What is the average weight of the kittens in the shelter?
Please explain!!

Answers

Answer:

Step-by-step explanation:

You should add the weights of each kitten and then divide by the number of kittens. Ex. There are 5 kittens weighing 2, 1, 3, 2, and 2. So you would add those to get 10 and divide by the number of kittens which is 5 to get an average of 2.

So in this case you would first add the weight of the kittens

Then divide that by the number of kittens

Then the quotient would be the average of the weight of the kittens in the shelter.

What would the graph of
Х/4.8 < 1.25 look like?

Answers

Answer:

Step-by-step explanation:

x/4.8 < 1.25                             Multiply both sides by 4.8

4.8 x /  4.8 < 1.25*4/8

x < 6

What this means is that every every number less than 6 is a solution to this inequality.

Graph 32 (shown below is a red area. The important thing to note is that the boundary at 6 is dotted which means it is not included in the solution.

What you want is more closely related to a number line and sort of looks like this

-----o-----o-----o-----o-----o-----o-----o-----o

    -1      0      1       2      3      4      5     6

<===============================o                                                              

Explanation

The top line is the actual number line or the graph

o------- is the way it is made.

The second line are the number divisions of the number line

The third line shows which way the inequality goes and that it is open at 6. Open means that you can get close to 6 but you can't touch 6.

What's the value of (3x+12)

Answers

Is there supposed to be a diagram? If not then you have your answer right there: (3x+12)
Explaination: You don’t know the value of x so you simply cannot add that unknown variable together with 12, unless you are given the value of x.
Other Questions
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