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trapecia [35]
2 years ago
12

The triangles below are similar. What is the value of x ?

Mathematics
1 answer:
Mandarinka [93]2 years ago
7 0

Answer:

Step-by-step explanation:

Since triangle ADE and triangle ABC are similar, that means their sides are proportional, thus we get the equation

\frac{AD}{AB} =\frac{DE}{BC}

\frac{2}{6} = \frac{x}{12}

6x = 24\\x=4

Thus the value of x is 4

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Pls solve part b) iii thanks
Viktor [21]

The bearing of the tree from Q is 296.565°

<h3>How to determine the height of the tree?</h3>

The figure that illustrates the bearing and the distance is added as an attachment

The given parameters are:

Base of the tree, b = 50 meters

Angle (x) = 32 degrees

Calculate the height (h) of the tree using:

tan(x) = height/base

So, we have:

tan(32°) = h/50

Make h the subject

h= 50 × tan(32°)

Evaluate

h = 31.24

Hence, the height of the tree is 31.24 meters

<h3>How to determine the distance between Q and the base of the tree?</h3>

The distance (d) between Q and the base of the tree

This is calculated using the following Pythagoras theorem

d = √(100² + 50²)

Evaluate

d = 111.80

Hence, the distance between Q and the base of the tree is 111.80 meters

<h3>How to determine the angle of elevation?</h3>

The angle of elevation (x) using the following tangent trigonometric ratio

tan(x) = h/d

This gives

tan(x) = 31.24/111.80

Evaluate the quotient

tan(x) = 0.2794

Take the arc tan of both sides

x = 15.61

<h3>The bearing of the tree from Q </h3>

This is calculated using:

Angle of bearing = 270 + arctan(50/100)

Evaluate the arc tan

Angle of bearing = 270 + 26.565

Evaluate the sum

Angle of bearing = 296.565

Hence, the bearing of the tree from Q is 296.565 degrees

Read more about bearings at:

brainly.com/question/24142612

#SPJ1

4 0
2 years ago
Yuri is using 4/5 of a yard of fabric for each costume. If she has 20 yards of fabric, how many costumes is she making her
Luba_88 [7]
20 / 4/5=
20 * 5/4 = 25
She can make 25 costumes
7 0
2 years ago
Please answer this correctly without making mistakes
levacccp [35]

Answer:

6 lbs and 1 oz

Step-by-step explanation:

6 0
2 years ago
*77. The holder of an $8000 savings certificate gets a
Damm [24]

Answer: 8 %

Step-by-step explanation:

SI = prt / 100

640 = 8000 x r x 1

r = 640 / 8000 = 0.08

7 0
3 years ago
The number x is between -9 and -19
Tresset [83]
The answer to this is -9 < x < -19
3 0
3 years ago
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