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gayaneshka [121]
3 years ago
12

Natalie accelerator skateboard along a straight path for 4 milliseconds to 0 milliseconds in 25.0 seconds find the acceleration.

Mathematics
1 answer:
Katarina [22]3 years ago
8 0
M/s is meters per second not milliseconds :)
m/s^2 is the accelaration in m/s per second
v=v2-v1=0-4=-4
a=v/t
a=-4/25 m/s^2=-0.16 m/s^2
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Triangle CDE is an isosceles triangle with angle d congruent to angle E if CD= 4x+9, DE= 7x-5, CE= 16x-27, find x and the measur
Montano1993 [528]
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x = 3
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CE= 21 \: units



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It was given that ∆CDE is an isosceles triangle.

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CD=4x+9


DE=7x-5


CE=16x-27



It was also given that, angle D is congruent to angle E.


This implies that, side CD and CE are equal.


Thus,

|CD|  =  |CE|
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We group like terms to get,

16x - 4x = 9 + 27

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Divide both sides by 12 to get,

x =  \frac{36}{12}

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The length of the sides are;

CD=4(3)+9 = 21 \: units

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3 years ago
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