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kakasveta [241]
2 years ago
14

Please helppp answer correctly !!!!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!

Mathematics
1 answer:
horrorfan [7]2 years ago
7 0

Answer:

21

Step-by-step explanation:

Remember that the centroid splits the 3 medians of a triangle into a ratio of 1:2

Since TS < TN, TS = 42/2 = 21

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Multiply (2x + 2y)(2x + 2y)
Maslowich

Answer:

4x² + 4y² + 8xy

Step-by-step explanation:

( 2x + 2y ) ( 2x + 2y ) = ( 2x + 2y )²

Formula : -

( a + b )² = a² + b² + 2ab

Here,

a = 2x

b = 2y

( 2x + 2y )²

= ( 2x )² + ( 2y )² + 2 ( 2x ) ( 2y )

= 2²x² + 2²y² + 8xy

= 4x² + 4y² + 8xy

7 0
2 years ago
Read 2 more answers
1/3 (12x-24) =16
liraira [26]

Answer:

6

Step-by-step explanation:

Multiplying both sides by 3, we have 12x - 24 = 48. Adding both sides by 24, we have 12x = 72. That means x = 6

Can I have brainliest

4 0
2 years ago
А bag contains 3 red, 4 blue, and 2 green chips. Two
Lelechka [254]

Answer:

1/9

Step-by-step explanation:

3+4+2=9

9*2=18

18/2=2/18

2/18=1/9

3 0
3 years ago
You can paint 75 square feet of a surface every 45 minutes. Determine how long it takes you to paint a wall with the given dimen
marin [14]

Answer:

25.2 minutes

Step-by-step explanation:

step 1

Find the area of the given wall

A=(7)(6)=42\ ft^2

step 2

we know that

You can paint 75 square feet of a surface every 45 minutes

so

using proportion

Find out how long it takes you to paint a surface area of 42 square feet

\frac{75}{45}\ \frac{ft^2}{min}=\frac{42}{x}\ \frac{ft^2}{min}\\\\x=45(42)/75\\\\x=25.2\ min

5 0
3 years ago
If AABC ~ ADEF, what is the length of DE?<br><br> NEED HELP ASAP please and thanks In advance
chubhunter [2.5K]

Answer:

DE = 21

Step-by-step explanation:

Recall: the ratio of the corresponding side lengths of similar triangles are equal

Given that ∆ABC ~ ∆DEF, therefore,

AB/DE = BC/EF = AC/DF

AB = 8.4

DE = x

BC = 10

EF = 25

AC = 16.5

DF = 41.25

Let's find DE using AB/DE = BC/EF. Thus:

8.4/x = 10/25

Cross multiply

x*10 = 25*8.4

10x = 210

Divide both sides by 10

x = 210/10

x = 21

DE = x = 21

5 0
2 years ago
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