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3 years ago

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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3 years ago

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Answer:

Step-by-step explanation:

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3 years ago

What is are the solutions to | x+4 |= 3x-5?

bonufazy [111]

Answer:

x = $\frac{9}{2}$

Step-by-step explanation:

The absolute value always returns a positive value but the expression inside can be positive or negative, that is

x + 4 = 3x - 5 ( subtract 3x from both sides )

- 2x + 4 = - 5 (subtract 4 from both sides )

- 2x = - 9 ( divide both sides by - 2 )

x = $\frac{9}{2}$

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As a check

Substitute these values into the equation and if both sides are equal then they are the solutions

| $\frac{9}{2}$ + 4 | = | $\frac{17}{2}$ | = $\frac{17}{2}$

right side = $\frac{27}{2}$ - 5 = $\frac{17}{2}$

left side = right side , thus x = $\frac{9}{2}$ is a solution

check second solution

| $\frac{1}{4}$ + 4 | = | $\frac{17}{4}$ | = $\frac{17}{4}$

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4 years ago

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artcher [175]

Answer:

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Step-by-step explanation:

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6 0

3 years ago

Read 2 more answers