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Morgarella [4.7K]
2 years ago
13

Find AC if EC = 9, ED = 12, and BD = 20. Round to the nearest tenth.

Mathematics
1 answer:
olga_2 [115]2 years ago
6 0

The value of AC = 23

According to the statement

Here we have given the values of tangent from the diagram

EC = 9, ED = 12, and BD = 20.

and we have to find the value of AC.

We know that the according to the given diagram the tangent

BE is always equal to the Tangent AE.

So, we generate a equation to find the AC then

BE = AE

Convert this into parts like

BD +DE = AC+CE

Substitute the values in it which are given in the statement

20+12 = AC + 9

32 = AC + 9

32 -9 = AC

AC = 23

So, The value of AC = 23

Learn more about TANGENT here brainly.com/question/17040970

#SPJ1

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boyakko [2]

Answer:

Hi! The correct answer is 49/2 as an improper fraction and 24 1/2 in mixed number form!

Step-by-step explanation:

<em><u>~If it takes 2 and 1/3 to paint 1 wall then that's the unit rate. Multiply the unit rate by the number of total walls and that's your answer~</u></em>

7 0
3 years ago
Part B:
Andrew [12]

Articles of clothing that the store received last Thursday is 84

<u>Solution:</u>

Given that  

A clothing donation store received numerous articles of clothing on Thursday of last week.

The number of articles of clothing that the store received last Thursday is represented by the following expression:

4 (3x − 1) − 2 (6 + 2x)

Need to calculate articles of clothing that the store received last Thursday when x = 12.5

As on Thursday x = 12.5, need to substitute x = 12.5 in above equation to get number of articles received on Thursday.

On substituting x = 12.5, we get

4 ( (3 x 12.5 ) – 1 ) – 2 ( 6 + ( 2 x 12.5 ) )

=> 4 (37.5 – 1) – 2 (6 + 25)

=> 146 – 62 = 84

On substituting x = 12.5 , we are getting value of expression as 84.

Hence articles of clothing that the store received last Thursday is 84

3 0
3 years ago
a local library shows movies on Thursday evening.the library administrator has chosen the next 6 movies he will show , but he ha
Natali [406]
For the first movie he has 6 choices, then for the second since he has chosen the first there are only 5 left, then for the third there are only 4 choices left and so on.

Therefore the answer is 6!=6*5*4*3*2=720 orderings
7 0
3 years ago
Read 2 more answers
Which is the solution to the system 3x+y=8 and 7x−4y=25
tatyana61 [14]

Answer:

(3, - 1 )

Step-by-step explanation:

Given the 2 equations

3x + y = 8 → (1)

7x - 4y = 25 → (2)

Multiplying (1) by 4 and adding to (2) will eliminate the y- term

12x + 4y = 32 → (3)

Add (2) and (3)  term by term to eliminate y

19x + 0 = 57

19x = 57 ( divide both sides by 19 )

x = 3

Substitute x = 3 into either of the 2 equations and solve for y

Substituting into (1)

3(3) + y = 8

9 + y = 8 ( subtract 9 from both sides )

y = - 1

solution is (3, - 1 )

7 0
3 years ago
Please help I’ll mark you as brainliest if correct
Alex787 [66]

Answer:

2nd one

Step-by-step explanation:

If u put all of them together and then multiply, you'll get that answer :B

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