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3 years ago

13

What number should be added to both sides of the equation to complete the square? x2 8x = 4

2 answers:

olga55 [171]3 years ago

7 0

Answer:

c

Step-by-step explanation:

Levart [38]3 years ago

6 0

You would take half of the x term...and square it
so half of 8 is 4....4^2 = 16
u would add 16 to each side

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Dovator [93]

Answer:

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Step-by-step explanation:

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3 years ago

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1. The position of a particle moving along a coordinate axis is given by: s(t) = t^2 - 5t + 1. a) Find the speed of the particle

zimovet [89]

Answer: $\left | 2t-5\right |,\ 2,\ 2t-5$

Step-by-step explanation:

Given

Position of the particle moving along the coordinate axis is given by

$s(t)=t^2-5t+1$

Speed of the particle is given by

$\Rightarrow v=\dfrac{ds}{dt}\\\\\Rightarrow v=\dfrac{d(t^2-5t+1)}{dt}\\\\\Rightarrow v=\left | 2t-5\right |$

Acceleration of the particle is

$\Rightarrow a=\dfrac{dv}{dt}\\\\\Rightarrow a=2$

velocity can be negative, but speed cannot

$\Rightarrow v=\dfrac{ds}{dt}\\\\\Rightarrow v=\dfrac{d(t^2-5t+1)}{dt}\\\\\Rightarrow v=2t-5$

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7nadin3 [17]

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Step-by-step explanation:

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