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maxonik [38]
2 years ago
15

PLS HELP ME ASAP WILL RECEIVE 25pts

Mathematics
1 answer:
Anna35 [415]2 years ago
5 0

Answer:

Co-interior angels adds up to 180

180-109=71

? Is 71

2x + x + 45=180

3x + 45 =180

- 45

3x =135

÷3

x=45

2x = 90

So, 90+45+45=180

x =45

B

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Y=5/2x-19 and 5x+2y=-8 a perpendicular,parallel or intersecting lines?
dimaraw [331]

Answer:

There intersecting lines

Step-by-step explanation:

5x+2y=-8

-5x            -5x

2y=-8 -5x

/2   /2  /2

y=-4 -5/2x also

y=-5/2x - 4

&

y=5/2x - 19

neither parallel (slope is not the same)

or perpendicular (slope is not reciprocal or opposite signed)

hope i helped

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If triangle DEF has a 90° angle at vertex E, which statements are true? Check all that apply.
jeka57 [31]
There are two statements that are true: the angle at vertx D is acute and triangle DEF is a right triangle.
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3 years ago
A farmer creates a rectangular pen using part of the wall of a barn for one side of the pen and a total of 130 feet of fencing f
Nat2105 [25]

The equation that describes the which gives the area of the pen, A, as a function of x, the length of fence parallel to the barn is A = 130x - x²

<h3>How to find area of a rectangle?</h3>

The pen is rectangular. Therefore,

area of a rectangle = lw

where

  • l = length
  • w = width

Therefore,

perimeter = 2w + l

perimeter = 2w + x

130 = 2w + x

130 - x = 2w

w = 65 - 1/ 2 x

A = xw

A = x(65 - 1/ 2 x)

A = 65x - 1 / 2 x²

Therefore, the function that represents A, the area of the pen is as follows:

A = 130x - x²

learn more on rectangle here: brainly.com/question/12685460

#SPJ1

8 0
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What is 9/54 in its simplest form
lions [1.4K]
1/6th is the answer in simplest form.
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Step-by-step explanation:

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