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icang [17]
3 years ago
7

Please do correctly! I will mark you Brainliest!

Mathematics
1 answer:
kolbaska11 [484]3 years ago
4 0

Answer:

3(4+√2)

Step-by-step explanation:

Here we need to find the perimeter of the given figure. Here the given figure is made from a triangle and a square. The side lenght of the square is 3. We need to find the hypontenuse of the triangle in order to find Perimeter .

<u>•</u><u> </u><u>Using</u><u> </u><u>Pyth</u><u>agoras</u><u> Theorem</u><u> </u><u>:</u><u>-</u><u> </u>

⇒ h² = p² + b²

⇒ h² = 3² + 3²

⇒ h² = 9 + 9

⇒ h² = 18

⇒ h = √[ 9 × 2 ]

⇒ h = 3√2 .

Therefore the perimeter will be ,

⇒ P = 3√2 + 3 + 3 + 3 + 3

⇒ P = 3√2 + 12

⇒ P = 3( 4 + √2)

<h3><u>Hence</u><u> </u><u>the</u><u> </u><u>perim</u><u>eter</u><u> of</u><u> the</u><u> </u><u>figure</u><u> </u><u>is</u><u> </u><u>3</u><u>(</u><u>4</u><u>+</u><u>√</u><u>2</u><u>)</u><u> </u><u>.</u></h3>

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5 0
3 years ago
Is the sequence -3, 1, 5, 9,... An arithmetic sequence
kramer

Answer:

Yes, it's an arithmetic sequence.

Step-by-step explanation:

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6 0
3 years ago
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4 0
2 years ago
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galina1969 [7]
The answer is:  " 11 " .
____________________________________________________
            →     " x  =  11  "  .
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Explanation:
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Set up the ratio/ proportion as a fraction:

6 cm / 48 cm = 5 cm / (3x + 7) ; 

→ The "cm" units cancel out; since:  "cm/cm = 1 " ; 

→ The "6/48" = "(6 ÷ 6) / (48 ÷ 6) =  " 1/8 " ; 

→ Rewrite as:  \frac{1}{8} = \frac{5}{3x + 7} ;

Now, we can "cross-multiply" :
__________________________________________________

<u>Note</u>:  Given: \frac{a}{b} = \frac{c}{d} ;  ad = bc ; 
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__________________________________________________
 
As such:      
 
    1 * (3x + 7) = 8 * 5 ;

   →  3x + 7 = 40 ; 

Subtract "7" from each side of the equation:

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</span>
to get:  

   → 3x = 33 ; 

Now, divide each side of the equation by "3" ; 
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   →  3x / 3 = 33 / 3 ; 

to get: 
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   →    " x = 11 " .
____________________________________________________
   →   The answer is:  " 11 " .
____________________________________________________
4 0
3 years ago
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Ok, so If you are asking for the original amount it would be a total of 250 cm worth of ribbon.
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