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VashaNatasha [74]
2 years ago
11

Help me out please no wrong awnsers (right awnsers only ) I ask for thanks:)

Mathematics
1 answer:
lyudmila [28]2 years ago
5 0

Answer:

12 cards is the correct answer of this questions.

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The lengths of the
Dmitrij [34]

Answer:

S_{\Delta ABC} = 4·S_{\Delta EDC}

Step-by-step explanation:

From the midpoint theorem, which states that the line that a line drawn such that it joins the midpoints of two sides of a triangle, is parallel to the third side of the triangle and is equal to half the length of the third side

Therefore, the lengths of the sides of ΔDEF, drawn by joining the midpoints of ΔABC is equal to half the length of and parallel to the corresponding side of ΔABC

We therefore, have that the corresponding sides of ΔABC and ΔDEF have a common ratio and a pair of sides in each triangle form same angles, therefore;

ΔDEF is similar to ΔABC by Side, Side, Side SSS similarity.

The length of the perimeter of ΔABC, S_{\Delta ABC} = 2 × The length of the perimeter of triangle ΔEDC, S_{\Delta EDC}

S_{\Delta ABC} = 2 ×  S_{\Delta EDC}

∴  S_{\Delta ABC}  ≠ 4 ×  S_{\Delta EDC}

The statement which is incorrect is therefore;

S_{\Delta ABC}  = 4 ×  S_{\Delta EDC}.

4 0
3 years ago
Solve the variable<br>Show ALL steps.<br>-25 + x = 37​
vodomira [7]

Answer:

x=62

Step-by-step explanation:

1. add + 25 to both sides because when you have a negative you have to add.

2.  When you add 25 to 37 you get 62.

therefore 62 is the answer

6 0
3 years ago
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What is the value of Y????
yawa3891 [41]
Answer: The value of y=9.
6 0
3 years ago
For a science project 30 students are divided into a group of six each group needs a piece of string that is 2 1/2 feet long mr.
Anuta_ua [19.1K]

Answer:

66 inches

Step-by-step explanation:

1. Yards to Feet:

1 yard= 3 feet

(6 yards)(3)= 18

6 yards = 18 feet

2. Number of Groups:

30 students/6 students per group= 5 groups

3. Total String Needed:

(5 groups)x(2.5 feet string)= 12.5 feet total string

4. Remaining String:

18 feet-12.5 feet= 5.5 feet

5. Feet to Inches:

1 foot= 12 inches

(5.5 feet)(12)= 66 inches

66 inches of string will remain

3 0
2 years ago
What is the square root of r64?
IceJOKER [234]

Answer:8

Step-by-step explanation:

Simplify the radical.

4 0
3 years ago
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