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inn [45]
3 years ago
10

Solve similar triangles advanced part 1​

Mathematics
1 answer:
balu736 [363]3 years ago
4 0

9514 1404 393

Answer:

  x = 4

Step-by-step explanation:

Corresponding segments of similar triangles are proportional. Here, the similar triangles are ...

  ΔABC ~ ΔADE

so the relationship between the sides is ...

  BC/BA = DE/DA . . . . . . we put the unknown value in the numerator

  x/4 = 12/(4+8)

  x = 4(1) = 4

The length of side x is 4.

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Just look at the picture​
Firlakuza [10]

Answer:

12:56

Step-by-step explanation:

just do 4mm x 3.14 = 12.56

4 0
3 years ago
A rectangular pool 18 meters by 12 meters is surrounded by a walkway of width x
vesna_86 [32]

Answer:

x=3 meters

Step-by-step explanation:

step 1

Find the area of the rectangular pool

A=LW

we have

L=18\ m\\W=12\ m

substitute

A=18(12)=216\ m^2

step 2

Find the area of rectangular pool including the area of the walkway

Let

x ----> the width of the walkway

we have

L=(18+2x)\ m\\W=(12+2x)\ m

substitute

A=(18+2x)(12+2x)

step 3

Find the area of the walkway

To find out the area of the walkway subtract the area of the pool from the area of rectangular pool including the area of the walkway

so

A=(18+2x)(12+2x)-216

step 4

Find the value of x if the area of the walkway equal the area of the pool

so

(18+2x)(12+2x)-216=216

Solve for x

(18+2x)(12+2x)=432\\216+36x+24x+4x^{2}=432\\4x^{2} +60x-216=0

Solve the quadratic equation by graphing

The solution is x=3 meters

see the attached figure

8 0
4 years ago
The two-way table of row relative frequencies below shows data on nationality and eye color. Brown or hazel Eyes Blue or Green e
galina1969 [7]

Answer:

b

Step-by-step explanation:

its correct

7 0
3 years ago
I do not understand plz help
Solnce55 [7]

Answer:

7

Step-by-step explanation:

use distributive property first

2x-4=10

then, add positive 4 to -4 and 10 because opposite signs cancel out

2x=14 then we divide

5 0
3 years ago
Read 2 more answers
Use the box-and-whisker plots to determine which statements are true.
ExtremeBDS [4]

The true statements are :

the average monthly temperatures of New Orleans are not as varied as that of Indianapolis.

The median of the average monthly temperatures of New Orleans is equal to the upper quartile of the average monthly temperature of Indianapolis.

<h3>What are the true options?</h3>

A box plot is used to study the distribution and level of a set of scores. The box plot consists whiskers. The whiskers represents the minimum and maximum scores.

On the box, the first line to the left represents the lower (first) quartile. The next line on the box represents the median.  The third line on the box represents the upper (third) quartile.

Range for New Orleans = 85 - 50 = 35

Range for Indianapolis = 75 - 25 = 50

Median for New Orleans = 70

Upper quartile for  Indianapolis = 70

To learn more about box plots, please check: brainly.com/question/27215146

#SPJ1

5 0
2 years ago
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