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Marrrta [24]
3 years ago
9

HELP MARKING BRAINLIEST EXTRA POINTS !!

Mathematics
1 answer:
Scrat [10]3 years ago
5 0

Answer:

  • The quadrilateral is a rectangle
  • Perimeter=8\sqrt{2} \,\,Unit
  • Area=6\,\,sq.unit

Step-by-step explanation:

Given,

A=(0,0)\\B=(1,1)\\C=(4,-2)\\D=(3,-3)

Now,

Slope\,\,for\,\,AB=\frac{1-0}{1-0} =1\\\\Slope\,\,for\,\,CD=\frac{-3+2}{3-4} =1\\\\Slope\,\,for\,\,AD=\frac{-3-0}{3-0} =-1\\\\Slope\,\,for\,\,BC=\frac{-2-1}{4-1} =-1\\\\So,AB||CD\,\,and\,\,AD||BC

AB=\sqrt{(1-0)^2+(1-0)^2}=\sqrt{2}\\BC=\sqrt{(4-1)^2+(-2-1)^2}=3\sqrt{2}\\CD=\sqrt{(3-4)^2+(-3+2)^2}=\sqrt{2}\\AD=\sqrt{(3-0)^2+(-3-0)^2}=3\sqrt{2}\\\\So,\,\,AB=CD,AD=BC\\The\,\,quadrilateral\,\,is\,\,a\,\,rectangle

Perimeter=2*(AB+AD)=2*(BC+CD)\\=2*(\sqrt{2}+3\sqrt{2})=8\sqrt{2} \,\,Unit

Area=AB*AD=BC*CD=\sqrt{2} *3\sqrt{2}=6\,\,sq.unit

Hope you have understood this.....  

ask me if you have any confusion.....  

if you liked it pls mark it as the brainliest

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Please help asap!!!!
gladu [14]

Answer:

J: x - 2y = -8

Step-by-step explanation:

All you have to do is plug in x or y as 0 for the y-intercept and the x-intercept, respectively. But, for these specific equations, looking at the constant when y isn't multiplied by any number but 1 will show the y-intercept. (e.g. 2x + y = -12, -12 is the y-intercept, 2x - y = -20 -> -2x + y = 20, 20 is the y-intercept)

F: y-intercept = -12 (incorrect)

G: y-intercept = 0 (incorrect)

H: y-intercept = 20 (incorrect)

J: y-intercept = 4 (correct)

8 0
3 years ago
3 1/2 - 4 2/5<br> how do i do this?
Nadusha1986 [10]

Answer:

Ok so first you would have to turn them into improper fractions which is

3 \frac{1}{2\\} = \frac{7}{2} and 4 \frac{2}{5} = \frac{22}{5}

So now that you have made them both improper fractions you have to find common denominators.

To find common denominators you must multiply both the numerator and the denominator by the same thing. Since your oposing fraction has a denominator of 5 you can know that a even number wont go in an odd number so take \frac{22}{5} and mutiply both numbers by 2 and get \frac{44}{10}. Then mutiply both numbers in \frac{7}{2} by 5 to get a common denominator.

\frac{35}{10}

\frac{35}{10} - \frac{44}{10} =35 - 44 = -9 so your answer is -\frac{9}{10}

Step-by-step explanation:

5 0
3 years ago
The sum of 3 times a number and another number is 10. The bigger number is 5 more than 2 times the smaller number. What are the
rodikova [14]

Answer:

7 and 1

Step-by-step explanation:

7 0
3 years ago
Find the measure of 2<br><br> A 38<br> B 92<br> C 112<br> D 136
NikAS [45]

Answer:

The answer is C

Step-by-step explanation:

(180-46)/2=67

67+45=112

4 0
3 years ago
Jim is 5 years older than Cindy. 4 years ago, the sum of their ages was 21. Find each of their ages now.
Dmitry_Shevchenko [17]
Jim is 16 because take away 21-5=16.Now Cindy 21-4=17.Cindy is 17.Jim is 16.
4 0
4 years ago
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