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scoray [572]
4 years ago
6

In this diagram, ABAC – AEDF. If the

Mathematics
1 answer:
Evgesh-ka [11]4 years ago
5 0

Answer:

Area = 4.5 in.²

Step-by-step explanation:

Area of ∆BAC = 8 in.²

EF = 3 in.

BC = 4 in.

Since both triangles are similar, therefore,

Area of ∆BAC : Area of ∆EDF = BC² : EF²

Plug in the values into the equation

8/area of ∆EDF = 4²/3²

Area of ∆EDF = (8*3²)/4²

= 4.5 in²

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The difference between seven seven times a number and 8 8 is equal to four four times the sum of the number and 3 3. Find the nu
Harlamova29_29 [7]

Answer:

20/3

7x - 8 = 4(x+ 3)

Step-by-step explanation:

Let the unknown number be x.

Now, the difference between 7 times a number and 8 is equal to four times the sum of the number and 3.

Writing this mathematically:

7x -8 = 4(x + 3)

To solve completely, we open the bracket:

7x - 8 = 4x + 12

7x - 4x = 12 + 8

3x = 20

x = 20/3

The correct equation to solving the problem is 7x - 8 = 4(x + 3)

3 0
3 years ago
Which prefix means 1/10 of a unit in the metric system? a. centi b. deci c. hecto d. milli
Reika [66]
B. deci is the metric prefix that means 1/10, or 0.10 of a base unit
6 0
3 years ago
darlene has 3 /5 a yard of fabric cuts the fabric into 2 equal pieces how long are each of the 2 equal sections
Aliun [14]

Division is one of the four fundamental arithmetic operations. The length of each fabric piece is 0.3 yards.

<h3>What is Division?</h3>

The division is one of the four fundamental arithmetic operations, which tells us how the numbers are combined to form a new one.

Given that Darlene has 3/5 a yard of fabric,  which he cuts into 2 equal pieces. Therefore, the length of each fabric piece can be found by dividing the length of the entire fabric by 2.

Length of a fabric piece

= Length of total fabric that Darlene has / 2

= (3/5) yards / 2

= 3/(5×2) yards

= 3/10 yards

= 0.3 yards

Hence, the length of each fabric piece is 0.3 yards.

Learn more about Division here:

brainly.com/question/369266

#SPJ1

5 0
2 years ago
Please help Ill give brainy pleas help please -
mars1129 [50]
The answer to this is a=3
4 0
2 years ago
The table shows the battery life of four different mobile phones.
Ugo [173]
I'm going to go with c.10
3 0
3 years ago
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