2 years ago

Reflect across the line y=x. Find the coordinates of the reflected points

Mathematics

1 answer:

sweet-ann [11.9K]2 years ago

7 0

E= 3,-3
I = 4,-3
X = 4,-1

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Geometry

Mademuasel [1]

DB is a median (given). It goes from vertex point D to midpoint B.

The point B is the midpoint of segment AC. So B cuts AC into two equal halves: AB and AC
Meaning AB = AC

AC = AB+BC ... segment addition postulate
AC = AB+AB ... substitution; replace BC with AB (valid because AB = AC)
AC = 2*AB
2*AB = AC
2*AB = 50 ... substitution; replace AC with 50
2*AB/2 = 50/2 ... divide both sides by 2
AB = 25 which is the answer

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2 years ago

What is 70% (percent) of 80?

romanna [79]

70 percent of 80 is 56.

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1 year ago

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vlabodo [156]

Answer:

it is B 2 real solutions

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1 year ago

Write the following expression using an exponent:<br><br> 5⋅5⋅5⋅5

Vesna [10]

Answer:

5^4

Step-by-step explanation:

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1 year ago

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Find the constant proportionality (r) using the value for r, enter an equation in the form of. C=rg that represents the relation

CaHeK987 [17]

Answer:

3.333

C = 3.3333g

Step-by-step explanation:

Given the relation : C = rg

C = Total cost of gasoline

g = Number of gallons of gasoline used

r = constant of proportionality

Picking any point on the graph :

At cost, c = $30

Number of gallons of gasoline used, g = 9

Putting the values into our equation :

C = rg

$30 = r * 9

30 = 9r

Divide both sides by 9

30/9 = 9r / 9

3.333 = r

Hence, constant of proportionality, r = 3.333

8 0

2 years ago