Answer:
-3
Step-by-step explanation:
ΔX = 0 – -1 = 1
ΔY = -3 – 0 = -3,
y = -3x – 3, so the slope is -3
Sorry if you don't understand, but pls brainliest for level up
i got you.. i think its -3,3
The perimeter of △CDE is 9.66 units
<h3>Perimeter of a triangle</h3>
The perimeter of a triangle is the sum of the sides of the triangle.
Given the coordinate points C(4, -1), D(4, −5), and E(2, −3)
Determine the distance CD, CE and DE using the distance formula
CD = √(-5+1)²+(4-4)²
CD = √16+0
CD = √16
CD = 4units
CE = √(-3+1)²+(2-4)²
CE = √4+4
CE = 2.83 units
DE= √(-3+5)²+(2-4)²
DE = √8
DE = 2.83 units
Take the sum
Perimeter of triangle CDE = 4 + 2.83 + 2.83
Perimeter of triangle CDE = 9.66 units
Hence the perimeter of △CDE is 9.66 units
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Answer:
thanks for letting everyone know :)
Step-by-step explanation:
The value of the length of BC is 45 units
<h3>How to determine the length BC?</h3>
The given parameters are:
BC = 15x
AD = 32x - 2
EF = 20.5x + 8
Where the parallel bases are AD and BC and the midsegment is EF
By the midsegment theorem, we have
2 * EF = AD + BC
Substitute the known values in the above equation
2 * (20.5x + 8) = 15x + 32x -2
Open the bracket
41x + 16 = 15x + 32x - 2
Evaluate the like terms
6x = 18
Divide both sides by 6
x = 3
Substitute x = 3 in BC = 15x
BC = 15 * 3
Evaluate
BC = 45
Hence, the value of the length of BC is 45 units
Read more about isosceles trapezoid at:
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