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KatRina [158]
3 years ago
5

What is the permeter of square ABCD?

Mathematics
1 answer:
marshall27 [118]3 years ago
7 0

Answer:

24.3 units (3 s.f.)

Step-by-step explanation:

Since a square has 4 equal sides,

perimeter of ABCD= 4(length of AB)

Distance between 2 points

=\sqrt{(y1 - y2)^{2} + (x1 - x2)^{2}  }

Length of AB

=  \sqrt{( { - 2 - 4)}^{2}  +  {(2 - 3)}^{2} }  \\  =  \sqrt{( - 6)^{2}  + (  - 1)^{2} }  \\  =  \sqrt{37}

perimeter of ABCD

= 4 \sqrt{37}  \\  = 24.3 \: units \: (3 \: s.f.)

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The answer it b your welcome
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15) A, B, C, D, E and F are towns situated as follows. * A is 30 km east of D * C is 20 km east of E * F is 10 km west of B * D
harkovskaia [24]

Answer:

Option D: 20km South

Step-by-step explanation:

Lets say A = (0, 0)

  • Finding B:

A is 30km East of D which makes D = (-30, 0)

D is 10km South of F which makes F = (-30, 10)

F is 10km West of B which makes B = (-20, 10)

  • Finding E:

A is 10km North of C which makes C = (0, -10)

C is 20km East of E which makes E = (-20, -10)

  • Finding the answer:

Find distance from B = (-20, 10) to E = (-20, -10)

     1. Cancel equivalent values:

x of B = (-20) and x of E = (-20)

Remove x from equation.

     2. Solve for answer:

B = 10 and E = (-10)

Find the difference: (-10) - 10 = (-20)

Conclusion:

South translates to negative on a graph making the answer 20km South

Hope this helped :)

4 0
2 years ago
A+3/4=7/8. Please help solve equation using subtraction
vazorg [7]
1/8
If you can make the bottom numbers (denominator) The same that you can use subtract the top numbers like normally
7 0
3 years ago
What is the GCF of 24 and 40
nikitadnepr [17]

Answer:

8

Step-by-step explanation:

24 = 2* 2 * 2 * 3

40 = 2 * 2 * 2 * 5

GCF = 2*2*2  = 8

6 0
3 years ago
Johnny spend 1/7 of his income on Food, 1/10 of his income on gas, and 3/8 of his income on rent. What percentage of his income
Agata [3.3K]

Answer:

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Step-by-step explanation:

1/7 ≈ 14.29%

1/10 = 10.00%

3/8 = 37.50%

The total that Johnny has allocated for food, gas, and rent is ...

  14.29% + 10.00% + 37.50% = 61.79%

So, the remaining amount is ...

  100% -61.79% = 38.21%

About 38.2% of Johnny's income remains.

7 0
3 years ago
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