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Alenkinab [10]
3 years ago
6

EASY 100 POINTS WILL MARK BRAINIEST!!!!!

Mathematics
2 answers:
sammy [17]3 years ago
6 0

Answer: 32.1

d=sqrt ((x2-x1)^2+(y2-y1)^2 )

Find length of AB

d=sqrt((2-(-4))^2+(0-5)^2)

d=sqrt(6^2+(-5)^2)

d=sqrt(36+25)

d=sqrt(61)

d= around 7.8

Find length of BC

d=sqrt((4-(-4))^2+(10-5)^2)

d=sqrt(8^2+5^2)

d=sqrt(64+25)

d=sqrt(89)

d= around 9.4

Find length CD

d=sqrt((8-4)^2+(7-10)^2)

d=sqrt(4^2+(-3)^2)

d=sqrt(16+9)

d=sqrt(25)

d=5

Find length DE

d=sqrt((4-8)^2+(5-7)^2)

d=sqrt((-4)^2+(-2)^2)

d=sqrt(16+4)

d=sqrt(20)

d= around 4.5

Find length EA

d=sqrt ((4-2)^2+(5-0)^2 )

d=sqrt(2^2+5^2)

d=sqrt(4+25)

d=sqrt(29)

d= around 5.4

P=7.8+9.4+5+4.5+5.4

P=32.1

Step-by-step explanation:

sesenic [268]3 years ago
4 0

Answer:

Perimeter is 38.8 units and approximately 39 units

Step-by-step explanation:

Trust me :)

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Which system of linear inequalities is represented by the graph?  ax – 3y > 6 and y > 2x + 4 bx + 3y > 6 and y > 2x 
igor_vitrenko [27]

The <em><u>correct answer</u></em> is:

bx + 3y > 6 and y > 2x + 4

Explanation:

Looking at the second inequality, the y-intercept is 4 and the slope is 2.  This means the graph of the line crosses the y-axis at (0, 4) and the line goes up 2 and over 1.  Since it is greater than, this means the graph is shaded above it.  Comparing this to the graph, the line for the blue part crosses the y-axis at (0, 4) and goes up 2 and over 1.  The graph is also shaded above the line.

For the first inequality, bx+3y > 6, we want to isolate y.  To do this, we subtract bx from each side:

bx+3y-bx > 6-bx

3y > 6-bx

Divide both sides by 3:

3y/3 > 6/3 - bx/3

y > 2 - (b/3)x

This means the line for this will have a y-intercept of 2 and decrease 1 while going over 3.  The orange section does this.  Additionally, since it is greater than, the graph should be shaded above the line.  This one is, so this is the correct answer.

3 0
3 years ago
Read 2 more answers
Simplify -4(3-1)+2 <br><br>​
nikdorinn [45]

To solve this you must use the rules of PEMDAS (Parentheses, Exponent, Multiplication, Division, Addition, Subtraction)

First we have parentheses.

-4(3 - 1) + 2

3 - 1 = 2

-4(2) + 2

We have no exponents so go on to multiplication

-4(2) + 2

-4 * 2 = -8

-8 + 2

No division so go to addition

-8 + 2

When adding a positive number with a negative number you will act as if you are subtracting the two numbers, then take the sign of the largest number  (disregarding the signs). In this case the largest number is 8 and its sign is negative. Your answer will have a negative sign.

-6

Hope this helped!

~Just a girl in love with Shawn Mendes

7 0
3 years ago
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