1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Mariana [72]
2 years ago
10

PLEASE HELP :) LOTS OF POINTS + BRAINLY

Mathematics
1 answer:
pogonyaev2 years ago
4 0

Jackson's method to figure out the height of the mountain is from the

similar triangles formed by the light using the mirror.

Response:

  • The height of the mountain is <u>50 feet 8 inches</u>

<h3>Which methods can used to find the height of the mountain?</h3>

The given parameters are;

Distance of the mirror from Jackson = 5 feet

Distance of the mirror from the base of the mountain = 40 feet

Height of Jackson = 6'4'' tall

Required:

The approximate height of the mountain, <em>h</em>

Solution:

The triangles formed by the light from the top of the mountain which is

reflected to Jackson from the mirror, Jackson's height, the height of the

mountain, and their distances from the mirror, are similar triangles.

The ratio of corresponding sides of similar triangles are equal, therefore,

we have;

\dfrac{Jackson's \ height}{Jackson's \ distance \ from \ the \ mirror } =\mathbf{ \dfrac{Height \ of \ the \ mountain}{Distance \ of \ the \ mountain \ from \ the \ mirror}}

Which gives;

\dfrac{6\frac{1}{3} \, ft.}{5 \, ft.} = \mathbf{ \dfrac{h}{40 \, ft.}}

h = 480 \, in. \times \dfrac{76 \, in.}{60 \, in.} = 608 \, in. = \mathbf{50 \frac{2}{3} \, ft. = 50 \, feet \ 8 \, inches}

  • The height of the mountain is approximately <u>50 feet 8 inches</u>

Learn more about similar triangles here:

brainly.com/question/23467926

You might be interested in
What is the y-intercept of the graph of the line whose equation is y=-2/5x+4?
s2008m [1.1K]

Answer:

b = 4

Step-by-step explanation:

y = mx + b represents the equation of a line

m represents the slope

b represents the y-intercept

Based on what we're given, we could determine that 4 is our y-intercept or b.  

3 0
3 years ago
Read 2 more answers
What is 2x - 4x = 1 as a fraction
OleMash [197]

Step-by-step explanation:

2x-4x=1

-2x=1

x=-1/2

<em>hope</em><em> </em><em>it</em><em> </em><em>helps</em><em> </em><em>you</em>

4 0
3 years ago
Read 2 more answers
X = –14.6 and y = 2.5.<br> –x – |y| 
vaieri [72.5K]
Get on algebra calculator (mathpapa) and you should get the answer

8 0
4 years ago
Read 2 more answers
Please help me answer this question mathematicians
Damm [24]

Answer:

  6.5e^(i·(-157.38°)) ≈ 6.5e^(-2.7468i)

Step-by-step explanation:

A suitable calculator can find the value of this ratio for you.

  ((2+3i)/(1-i))² = -6 -2.5i ≈ 6.5∠-157.38° ≈ 6.5e^(-2.7468i)

__

The second attachments shows the calculator set to radian mode for the angle measure.

6 0
2 years ago
A parabola can be drawn given a focus of
Volgvan

Answer:

y=-\frac{1}{4}(x-2)^{2}+9

Step-by-step explanation:

Any point on a given parabola is equidistant from focus and directrix.

Given:

Focus of the parabola is at (2,8).

Directrix of the parabola is y=10.

Let (x,y) be any point on the parabola. Then, from the definition of a parabola,

Distance of (x,y) from focus = Distance of (x,y) from directrix.

Therefore,

\sqrt{(x-2)^{2}+(y-8)^{2}}=|y-10|

Squaring both sides, we get

(x-2)^{2}+(y-8)^{2}=(y-10)^{2}\\(x-2)^{2}=(y-10)^{2}-(y-8)^{2}\\(x-2)^{2}=(y-10+y-8)(y-10-(y-8))...............[\because a^{2}-b^{2}=(a+b)(a-b)]\\(x-2)^{2}=(2y-18)(y-10-y+8)\\(x-2)^{2}=2(y-9)(-2)\\(x-2)^{2}=-4(y-9)\\y-9=-\frac{1}{4}(x-2)^{2}\\y=-\frac{1}{4}(x-2)^{2}+9

Hence, the equation of the parabola is y=-\frac{1}{4}(x-2)^{2}+9.

4 0
3 years ago
Other questions:
  • -2 and 1/2 divided by 6 <br><br> please help
    13·1 answer
  • What is the solution to the equation?
    13·2 answers
  • I AM GIVING BRAINLIEST what is 98.870 rounded to the nearest tenth
    13·2 answers
  • What is 59.69 in expanded form
    9·1 answer
  • Solve for x if 25^x+2=125^3x+4
    9·2 answers
  • Does a altitude of a triangle divides the triangle into two equal halves??​
    15·1 answer
  • A bird's path is modeled by the following graph. Use the graph below to answer
    5·1 answer
  • Determine the stopping distances for an automobile going a constant initial speed of 95 km/h and human reaction time of 0.40 s:
    15·1 answer
  • Find the ratio of 3 km to 3000 m
    12·2 answers
  • Year
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!