An airplane is flying at a height of 200m. Its angle of elevation to an observer on the ground is 230. Calculate the distance of the airplane from the observer.

Answers

Answer 1

Answer:

Distance between the plane and the observer is 511.86 miles.

Step-by-step explanation:

From the figure attached,

A plane is flying at point A which is at 200 m height and observer is at point C.

Angle of elevation (∠ACB) of the plane from the observer is 23°.

Let the distance between the observer and the plane is x meters.

By applying sine ratio for angle C,

sin(∠C) = [tex]\frac{\text{Opposite side}}{\text{Hypotenuse}}[/tex]

sin(23°) = [tex]\frac{200}{x}[/tex]

x = [tex]\frac{200}{\text{sin}(23)}[/tex]

x = 511.86 miles

Therefore, distance between the plane and the observer is 511.86 miles.

An Airplane Is Flying At A Height Of 200m. Its Angle Of Elevation To An Observer On The Ground Is 230.

Related Questions

please help me - i literally tried but gave up lolol

Answers

Answer:

77 degrees

Step-by-step explanation:

180 - 103 = 77

Hope that helps!

Answer:

The x = 130°

Because it is corresponding

PLEASE HELP!!! I need an urgent answer and I'll give brainiest just please answer this easy question!

Answers

Answer:

y , add 7, multiply by 3, then subtract 6.or Solve the system of equations and choose the correct answer from the list of options. x − y = 7 y = 3x + 12 2 over 19 comma 2 over 33 negative 2 over 19 comma negative 33 over 2 negative 19 over 2 comma negative 33 over 2 19 over 2 comma 33 over 2

Step-by-step explanation:

Can someone plz help me with showing the work. Send the work pic and I’ll mark brainliest plz ASAP!!!

Answers

Answer:

I think it might be D. 4mi because it is a little smaller that 5mi but bigger than 3mi but I might be wrong

Solve the original equation 2+1/b+2=3b/b+2 by solving the proportion. The solutions are
a.-6,-1 b. -6,1 c. -1,6 d. 1,6

Answers

Answer:

b=1

Step-by-step explanation:

2b+1+2b=3b+2b

4b+1=5b(Simplify both sides of the equation)

4b+1−5b=5b−5b(Subtract 5b from both sides)

−b+1=0

−b+1−1=0−1(Subtract 1 from both sides)

−b=−1

−b

−1

=

−1

−1

(Divide both sides by -1)

b=1

Check answers. (Plug them in to make sure they work.)

b=1(Works in original equation)

Answer:

D, 1,6

Next is Neither

And the first one was C

On Edgenu ity

Add the integers.
-6 + (-4) =( ?
B-2
C 2
D 10

Answers

Answer:
-6 + -4 = -10

Answer:

-10

Step-by-step explanation:

-6 + (-4) = ?

? = -6 - 4

? = -10

Therefore, -10 = -6 + (-4)

None of the options are correct.

Hope it helps

A cylinder has a radius of 4 inches and a height of 5 inches. Which of these dimensions of a cylinder will have the same volume?
Radius: 20 inches
Height: 60 inches


Radius: 2 inches
Height: 20 inches


Radius: 10 inches
Height: 8 inches


Radius: 8 inches
Height: 5 inches

Answers

Answer:

           Radius: 2 inches            Height: 20 inches

Step-by-step explanation:

[tex]R=4\,,\ H=5\ \implies \ \ V=\pi R^2\cdot H=\pi\cdot 4^2\cdot5=80\pi\\\\\\R=20\,,\ H=60\ \implies \ \ V=\pi\cdot20^2\cdot60=24000\pi\ne80\pi\\\\R=2\,,\ H=20\ \implies \ \ V=\pi\cdot2^2\cdot20=80\pi \\\\R=10\,,\ H=8\ \implies \ \ V=\pi\cdot10^2\cdot8=800\pi\ne80\pi\\\\R=8\,,\ H=5\ \implies \ \ V=\pi\cdot8^2\cdot5=320\pi\ne80\pi[/tex]

Answer:

Radius: 2 inches

Height: 20 inches

Step-by-step explanation:

Use the formula V = πr2h to solve the problem.

i need your help pls

Answers

C. Is the correct answer so you are right!


Explanation: Move the constant to the right-hand side and change its sign (10x≤ 238-18 )

Then Subtract the numbers ( 10x ≤220)

Then Divide both sides of the inequality by 10 ( x ≤22)


Really hope this helped:)

A dance school has 54 students who learn salsa, and 23 of those students also learn ballet. There are 15 students who do not learn salsa but learn ballet, and 10 students do not learn either salsa or ballet. Which table best shows the conditional relative frequency of rows for the data? Learn salsa Do not learn salsa Total Learn ballet 0.29 0.19 1 Do not learn ballet 0.39 0.13 1 Total 0.68 0.32 1 Learn salsa Do not learn salsa Total Learn ballet 0.61 0.39 1 Do not learn ballet 0.76 0.24 1 Total 0.68 0.32 1 Learn salsa Do not learn salsa Total Learn ballet 0.43 0.60 1 Do not learn ballet 0.57 0.4 1 Total 0.68 0.32 1 Learn salsa Do not learn salsa Total Learn ballet 0.23 0.15 1 Do not learn ballet 0.31 0.10 1 Total 0.54 0.25 1

Answers

Answer:

Learn ballet 0.23 0.15 1

Do not learn ballet 0.31 0.10 1

Total 0.54 0.25 1

Help me with this please

Answers

Answer:

6 hours

Explanation:

Ratio: 1:10

1:10

2:20

3:30

4:40

5:50

?:60

? = 6

Hope this helps!! ♥︎~

How do you solve 5(3x+10) using the rainbow method?

Answers


Multiply using the distributive property.
15x + 50

PLEASE CAN SOMEONE HELP????!!!!

Answers

For this you would take the yellow circle and count the spot in a directions (6) and for blue you would do the same (2) so scale factor is 3

help ASAP thanks .....

Answers

Answer:

The missing side of the triangle is 15

please help me please

Answers

Answer: its a little blurry not to be rood :c

Step-by-step explanation:

In a survey of 1,500 people who owned a certain type of car, 675 said they would buy
that type of car again. What percent of the people surveyed were satisfied with the car?

Answers

Answer:

55% is the answer to the question cause its 1500

Answer:

55% because its 1500

Step-by-step explanation:

-5=d/4+3 show work please.

Answers

Answer:

d=  -32

Step-by-step explanation:

d/4+3=-5

d/4=-8

d=4 x (-8)

d= -32

pls help me it is hard

Answers

Answer:

78%

Step-by-step explanation:

I counted the shaded squares and got 78.. so

Answer:

78%

Step-by-step explanation:

So first you start with 100% then you count the emty boxes the subtract that number from 100

in this example: 100-22=78

so you get 78%

Amal has 1/2 pound of baked beans. She divides the beans into 8 equal servings. Write and solve an equation to find how many pounds of baked beans are in each serving

Answers

Answer:

1/16 pound or 0.0625 pound beans.

Step-by-step explanation:

According to the problem, calculation of given data are as follows,

Total baked beans = 1/2 pounds

Number of serving = 8

if distribute equal beans in each serving than,

8 serving = 1/2 pound

So, 1 serving = 1/(2×8) pound

= 1/16 pound or 0.0625 pound beans.

Hence, each serving consist of 0.0625 pound  baked beans.

need help please and thank ​

Answers

Answer:

The Answer is B

Step-by-step explanation:

All the numbers and coefficients in option B correspond with the ones in the question. Hope this helps :)

What information is necessary to prove two triangles are similar by the SAS similarity theorem? ​

Answers

Answer:

The SAS criterion for triangle similarity states that if two sides of one triangle are proportional to two sides of another triangle and their included angles are congruent, then the triangles are similar.

Step-by-step explanation:

Answer:

You need to show that two sides of one triangle are proportional to two corresponding sides of another triangle, with the included corresponding angles being congruent.

Step-by-step explanation:

Solve the equation 16x^3+16x^2-x-1=0 given that -1/4 is a zero of f(x)= 16x^3+16x^2-x-1. Solution set is ___

Answers

Answer:

I love algebra anyways

The ans is in the picture with the  steps how i got it

(hope this helps can i plz have brainlist :D hehe)

Step-by-step explanation:

What is the ratio of a:b, knowing that a-b/a+b=3/5

Answers

The answer is fifteen and one for the ratio

Answer:

4:1

I think that is the answer

expressions are shown below

Answers

Answer:

9

Step-by-step explanation:

x^2-10x+25=0 factoring quadratic equation

Answers

Answer:

(x-5)(x-5)

Step-by-step explanation:

x^2-10x+25=0

(x-5)(x-5)

since:

-5-5=-10

and

-5×-5=25

hope this makes sense :)

A little bit confusing but hope you got it.

Describe how you know whether an equation will be true for all values of x or true for no values of x.

Answers

Answer:

Substitute your answer for the variable x. If the equation looks accurate or is correct, then the value of x is the right answer. Not sure if this makes sense

Determining whether an equation is true for all values of x or true for no values of x requires simplifying the equation, determining its domain, checking for variable restrictions, and evaluating the equation for different values of x.

What is an equation?

The equation is defined as mathematical statements that have a minimum of two terms containing variables or numbers that are equal.

Simplify the equation as much as possible using algebraic manipulations such as combining like terms, factoring, and expanding.

Evaluate the equation for a few different values of x to see if it holds true. If the equation is true for all values of x within the domain, then it will be true for all values of x. If there are any values of x within the domain that make the equation false, then it will be false for no values of x.

If the equation cannot be simplified or the domain cannot be determined, then it may require further analysis, such as graphing or using calculus techniques to determine its behavior.

Thus, determining whether an equation is true for all values of x or true for no values of x requires simplifying the equation, determining its domain, checking for variable restrictions, and evaluating the equation for different values of x.

Learn more about the equation here:

brainly.com/question/10413253

#SPJ2

Please help with explanation

Answers

Answer:

B

Step-by-step explanation:

The formula for a area of the first semi circle is

[tex] \frac{1}{2} \times \pi {r}^{2} [/tex]

where r is the radius

Since 4 is the diameter, 2 is the radius

plug it in

[tex] \frac{1}{2} \times \pi {2}^{2} [/tex]

[tex] \frac{1}{2} \times 4\pi[/tex]

[tex]2\pi[/tex]

so the area of the first circle is 2

[tex]2\pi[/tex]

now let find the second circle

Since the semi circle is twice the area of AB the diameter is 8 so the radius is 4.

Put it in the equation.

[tex] \frac{1}{2} \times \pi {4}^{2} [/tex]

[tex] \frac{1}{2} \times \pi \times 16[/tex]

[tex]8\pi[/tex]

Now let find the third circle

Since it is twice the size of the second circle, the diameter is 16 and the radius is 8.

[tex] \frac{1}{2} \times \pi {8}^{2} [/tex]

[tex] \frac{1}{2} \times 64\pi[/tex]

[tex]32\pi[/tex]

Now let add the area of the semi circle

[tex]32\pi + 2\pi + 8\pi = 42\pi[/tex]

the directions say match each of the symbolic notations to the correct sentence and Therese value .

there are eight boxes that need to get filled in . ​

Answers

Answer:

all you have to do is mach the variables with the words im not good on a computer but on the paper and pencil im a god so please hit me up

Step-by-step explanation:

After his alarm rings, Clarence has
25 minutes to get ready. He snoozes in
bed for one minute after the alarm rings
the first day, two minutes the second
day, three minutes the third day, etc.
When Clarence is down to 11 minutes to
get ready, how many days has it been?

Answers

Answer: 14 days

Step-by-step explanation:

Day 1: 1 minute snooze = 24 minutes

Day 2: 2 minute nooze = 23 minutes ; these examples show snooze time = days.

We can set up an equation for this situation: 25 - s = r ; where s = snooze time and r = time to get ready.

Given the problem, we can fill out this equation with: 25 - s = 11

When you solve this equation, time snoozed = 14.

We already know that snooze time = days, so days = 14.

I am not a professional, simply using prior knowledge!

Note- It would mean the world to me if you could mark me brainliest!

Wanda, the owner of an e-commerce site, buys skateboards for $50 and then sells them on her site for $83. What is the mark-up, as a percentage?

Answers

Answer: 66%

Step-by-step explanation:

Wanda buys the boards at $50 and sells them as $83.

The markup in actual dollar amounts is:

= 83 - 50

= $33

In percentage terms, the denominator will be the cost price:

= Markup / Cost price * 100%

= 33 / 50 * 100%

= 66%

Label each recursive routine as growth or decay (loss) and identify the percent of growth or decay.

a. Start with: 30
Rule: multiply by 1.07
growth by ????? percent


b. Start with: 100
Rule: multiply by 0.86
decay by ???? percent



c. Start with: 75
Rule: multiply by 1.125
growth by ?????? percent

Answers

Answer:

a. Rule: multiply by 1.07

1.07 = 107% = 100% + 7%

Growth by 7%

b. Rule: multiply by 0.86

0.86 = 86% = 100% - 14%

Decay by 14%

c.  Rule: multiply by 1.125

1.125 = 112.5% = 100% + 12.5%

Growth by 12.5%

Please help true or false in the picture below

Answers

1. False
2. True
3. True
4. True
(I might be wrong but I hope this helps :))
They are all true except for the 1st
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